Nearest-color comparison
Signal Red #E60000 vs Traffic Red #CC0605: RGB distance 27.1 and contrast 1.21:1. Compare hue, luminance, saturation, WCAG and practical use.
Signal Red and Traffic Red are related but distinguishable, with an RGB distance of 27.1. Signal Red is lighter by 0.0384, and Signal Red is more saturated by 5 percentage points. Their mutual contrast is 1.21:1. The pair is too close for a readable foreground/background combination and works better as neighboring palette colors.
The main measurable differences between Signal Red and Traffic Red across RGB distance, luminance, hue, saturation, and contrast.
red color
Signal Red is #E60000, a warm red with hue 0°, saturation 100% and luminance 0.1682. Beside Traffic Red, it is lighter and more saturated. Of the two standard text choices, white text gives the higher contrast at 4.81:1.
red color
Traffic Red is #CC0605, a warm red with hue 0°, saturation 95% and luminance 0.1298. Beside Signal Red, it is darker and less saturated. Of the two standard text choices, white text gives the higher contrast at 5.84:1.
Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.
Downloadable color comparison infographic
Save a high-resolution comparison infographic with both HEX colors, visual distance, mutual contrast, and accessibility guidance.
A compact visual strip showing the two compared colors with nearby harmony and variant context.
Machine-readable data
Structured comparison data for Signal Red and Traffic Red, including color systems, RGB distance, HSL deltas, contrast, accessibility guidance, use cases, and API links.
Colors Encyclopedia
colorsBoth named color records with HEX, RGB, HSL, CMYK, luminance, WCAG, and linksdifferencesRGB distance, HSL deltas, luminance delta, contrast, and shared attributesaccessibilityPair contrast and safer text choices for each coloruseCasesWhen to choose each color and when to use them togetherrelatedApiMachine-readable comparison and color endpoints[
{
"slug": "signal-red",
"name": "Signal Red",
"hex": "#E60000",
"rgb": [
230,
0,
0
],
"hsl": [
0,
100,
45
],
"cmyk": [
0,
100,
100,
10
],
"family": "red",
"temperature": "warm",
"tone": [
"vibrant"
],
"luminance": 0.1682,
"contrast": {
"black": 4.36,
"white": 4.81
},
"wcag": {
"AA": [
"#FFFFFF"
],
"AAA": []
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 4.81
},
"description": "Signal Red is #E60000, a warm red color with vibrant character. Compared with Traffic Red, it is lighter and more saturated. Use it for neon accents, event graphics, and high-energy digital design, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/signal-red/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/signal-red.json"
},
{
"slug": "traffic-red",
"name": "Traffic Red",
"hex": "#CC0605",
"rgb": [
204,
6,
5
],
"hsl": [
0,
95,
41
],
"cmyk": [
0,
97,
98,
20
],
"family": "red",
"temperature": "warm",
"tone": [
"vibrant"
],
"luminance": 0.1298,
"contrast": {
"black": 3.6,
"white": 5.84
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": []
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 5.84
},
"description": "Traffic Red is #CC0605, a warm red color with vibrant character. Compared with Signal Red, it is darker and less saturated. Use it for industrial design, safety systems, and hardware palettes, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/traffic-red/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/traffic-red.json"
}
]{
"rgbDistance": 27.1,
"contrastRatio": 1.21,
"hslDelta": {
"hue": 0,
"saturation": 5,
"lightness": 4
},
"luminanceDelta": 0.0384,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"vibrant"
],
"lighterColor": "Signal Red",
"moreSaturatedColor": "Signal Red"
}{
"pairContrastRatio": 1.21,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Signal Red",
"background": "#E60000",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 4.81
},
{
"color": "Traffic Red",
"background": "#CC0605",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 5.84
}
]
}{
"chooseFirstWhen": "Signal Red is better when the design needs vibrant red character, warm temperature, and the specific HEX value #E60000.",
"chooseSecondWhen": "Traffic Red is better when the design needs vibrant red character, warm temperature, and the specific HEX value #CC0605.",
"useTogetherWhen": "Use these colors together as related palette neighbors, subtle material differences, or tonal alternatives rather than readable foreground/background pairs."
}[
"https://www.colorsencyclopedia.com/api/compare/signal-red-vs-traffic-red.json",
"https://www.colorsencyclopedia.com/api/colors/signal-red.json",
"https://www.colorsencyclopedia.com/api/colors/traffic-red.json"
]{
"datasetVersion": "1.0.0",
"slug": "signal-red-vs-traffic-red",
"type": "nearest",
"name": "Signal Red vs Traffic Red",
"verdict": "Signal Red and Traffic Red are visually related colors. Signal Red is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.21:1, so the pair is too low for text and better treated as a palette relationship.",
"summary": "Signal Red and Traffic Red are different red colors with HEX values #E60000 and #CC0605. According to Colors Encyclopedia, their RGB distance is 27.1, their contrast ratio is 1.21:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
"rgbDistance": 27.1,
"contrastRatio": 1.21,
"colors": [
{
"slug": "signal-red",
"name": "Signal Red",
"hex": "#E60000",
"rgb": [
230,
0,
0
],
"hsl": [
0,
100,
45
],
"cmyk": [
0,
100,
100,
10
],
"family": "red",
"temperature": "warm",
"tone": [
"vibrant"
],
"luminance": 0.1682,
"contrast": {
"black": 4.36,
"white": 4.81
},
"wcag": {
"AA": [
"#FFFFFF"
],
"AAA": []
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 4.81
},
"description": "Signal Red is #E60000, a warm red color with vibrant character. Compared with Traffic Red, it is lighter and more saturated. Use it for neon accents, event graphics, and high-energy digital design, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/signal-red/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/signal-red.json"
},
{
"slug": "traffic-red",
"name": "Traffic Red",
"hex": "#CC0605",
"rgb": [
204,
6,
5
],
"hsl": [
0,
95,
41
],
"cmyk": [
0,
97,
98,
20
],
"family": "red",
"temperature": "warm",
"tone": [
"vibrant"
],
"luminance": 0.1298,
"contrast": {
"black": 3.6,
"white": 5.84
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": []
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 5.84
},
"description": "Traffic Red is #CC0605, a warm red color with vibrant character. Compared with Signal Red, it is darker and less saturated. Use it for industrial design, safety systems, and hardware palettes, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/traffic-red/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/traffic-red.json"
}
],
"differences": {
"rgbDistance": 27.1,
"contrastRatio": 1.21,
"hslDelta": {
"hue": 0,
"saturation": 5,
"lightness": 4
},
"luminanceDelta": 0.0384,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"vibrant"
],
"lighterColor": "Signal Red",
"moreSaturatedColor": "Signal Red"
},
"accessibility": {
"pairContrastRatio": 1.21,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Signal Red",
"background": "#E60000",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 4.81
},
{
"color": "Traffic Red",
"background": "#CC0605",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 5.84
}
]
},
"useCases": {
"chooseFirstWhen": "Signal Red is better when the design needs vibrant red character, warm temperature, and the specific HEX value #E60000.",
"chooseSecondWhen": "Traffic Red is better when the design needs vibrant red character, warm temperature, and the specific HEX value #CC0605.",
"useTogetherWhen": "Use these colors together as related palette neighbors, subtle material differences, or tonal alternatives rather than readable foreground/background pairs."
},
"relatedApi": [
"https://www.colorsencyclopedia.com/api/compare/signal-red-vs-traffic-red.json",
"https://www.colorsencyclopedia.com/api/colors/signal-red.json",
"https://www.colorsencyclopedia.com/api/colors/traffic-red.json"
],
"url": "https://www.colorsencyclopedia.com/compare/signal-red-vs-traffic-red/",
"apiUrl": "https://www.colorsencyclopedia.com/api/compare/signal-red-vs-traffic-red.json"
}