Colors Encyclopedia

HEX atlas value

#FA1A05

#FA1A05 is a warm red HEX color close to Scarlet. According to Colors Encyclopedia, it converts to RGB 250, 26, 5, HSL 5, 96%, 50%, has luminance 0.2107, and belongs to the vibrant group.

redwarmvibrant
#FA1A05 Sample readable text
HEX #FA1A05
RGB rgb(250, 26, 5)
HSL hsl(5 96% 50%)
CMYK cmyk(0, 90, 98, 2)
Luminance 0.2107
Contrast Black 5.21:1White 4.03:1

CSS

--color-fa1a05: #FA1A05;
.background-fa1a05 { background-color: #FA1A05; }
.text-fa1a05 { color: #FA1A05; }

Machine-readable data

Machine-Readable HEX Data (JSON)

Structured HEX color data for conversion, WCAG checks, CSS generation, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.2107
Black text5.21:1AA Pass
White text4.03:1AA Fail
hexCanonical HEX value
rgbRed, green, blue channels
hslHue, saturation, lightness
cmykApproximate print conversion
wcagAA and AAA contrast options
harmoniesMathematical harmony sets
variantsGenerated tone variants
nearestColorsKnowledge graph neighbors
Download JSON Open API
Structured sections
Color systems
{"hex":"#FA1A05","rgb":[250,26,5],"hsl":[5,96,50],"cmyk":[0,90,98,2],"luminance":0.2107,"contrast":{"black":5.21,"white":4.03}}
WCAG
{"AA":["#000000"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":5.21,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":4.03,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#05E6FA","hex":"#05E6FA","family":"cyan","bestTextColor":"#000000","contrastBlack":13.71,"contrastWhite":1.53,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#FA9405","hex":"#FA9405","family":"orange","bestTextColor":"#000000","contrastBlack":9.3,"contrastWhite":2.26,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#A01003","hex":"#A01003","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.57,"contrastWhite":8.17,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#FC6C5F","hex":"#FC6C5F","family":"red","bestTextColor":"#000000","contrastBlack":7.45,"contrastWhite":2.82,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"Orange Red","hex":"#FF4500","family":"orange","bestTextColor":"#000000","contrastBlack":6.1,"contrastWhite":3.44,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]}]
AI context
{"semanticGroups":["warm red","vibrant","vibrant red","Scarlet adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","high-attention visual states"],"contrastSafeWith":["#000000"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/fa1a05.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/scarlet.json","https://www.colorsencyclopedia.com/api/colors/red.json","https://www.colorsencyclopedia.com/api/colors/signal-red.json"]}
Harmonies
{"complementary":"#05E6FA","analogous":["#FA056B","#FA9405"],"triadic":["#05FA1A","#1905FA"],"tetradic":["#6BFA05","#05E6FA","#9405FA"],"splitComplementary":["#05FA94","#056BFA"],"monochromatic":["#FC6C5F","#FA1A05","#A01003"]}
Variants
{"light":"#FC6C5F","dark":"#A01003","saturated":"#FF1500","desaturated":"#DE3121","pastel":"#F3948C","neon":"#FF3B29"}
Nearest named colors
[{"slug":"scarlet","name":"Scarlet","hex":"#FF2400","distance":12.24744871391589},{"slug":"red","name":"Red","hex":"#FF0000","distance":26.94438717061496},{"slug":"signal-red","name":"Signal Red","hex":"#E60000","distance":33.18132004607411},{"slug":"orange-red","name":"Orange Red","hex":"#FF4500","distance":43.57751713900185},{"slug":"cadmium-red","name":"Cadmium Red","hex":"#E30022","distance":45.232731511594565}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #FA1A05

#FA1A05 is classified as a warm red value with vibrant visual character. #FA1A05 is visually closest to Scarlet, a named red color with HEX #FF2400.

The RGB channels are 250, 26, and 5, with red carrying the strongest channel weight. In HSL, the hue is 5deg with 96% saturation and 50% lightness, so this page treats it as a high-saturation, mid-lightness atlas color rather than a generic swatch.

According to Colors Encyclopedia, this HEX value works best for color conversion, WCAG contrast checks, CSS color tokens, and high-energy accents. Its luminance is 0.2107, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 12.25, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text5.21:1AA Pass
White text4.03:1AA Fail

AA text options: #000000.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #FA1A05 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000005.21:1 · AA
White text#FFFFFF4.03:1 · Fail

Accessible Alternatives

#05E6FA#000000 text · best 13.71:1#05E6FA
#FA9405#000000 text · best 9.3:1#FA9405
#A01003#FFFFFF text · best 8.17:1#A01003
#FC6C5F#000000 text · best 7.45:1#FC6C5F
Orange Red#000000 text · best 6.1:1#FF4500

Generated Palette

#FA1A05#FA1A05
#05E6FA#05E6FA
#FA056B#FA056B
#FA9405#FA9405
#FC6C5F#FC6C5F
#A01003#A01003

Color Harmonies

#05E6FA#05E6FA
#FA056B#FA056B
#FA9405#FA9405
#05FA1A#05FA1A
#1905FA#1905FA

Variants

#FC6C5F#FC6C5F
#A01003#A01003
#FF1500#FF1500
#DE3121#DE3121
#F3948C#F3948C
#FF3B29#FF3B29

Nearest Named Colors

Scarlet#FF2400
Red#FF0000
Signal Red#E60000
Orange Red#FF4500
Cadmium Red#E30022

Related HEX Guides

Scarlet colorOpen the nearest named color reference for #FF2400.Red colorOpen the nearest named color reference for #FF0000.Signal Red colorOpen the nearest named color reference for #E60000.Red color familyBrowse named red colors related to this HEX value.Warm colorsExplore colors with similar temperature behavior.Vibrant colorsFind colors in the vibrant group.Color palettesBrowse palette systems related to generated color combinations.Compare colorsCompare named colors near this HEX value.Accessible colorsBrowse WCAG-friendly named colors and safe text options.#FA1A05 APIOpen the machine-readable JSON record for this HEX value.