HEX atlas value

#FF7900

#FF7900 is a warm orange HEX color nearest Safety Orange. RGB 255, 121, 0, HSL 28° 100% 50%, luminance 0.3493; view contrast and conversions.

orange warm vibrant

#FF7900 Sample readable text

HEX #FF7900

RGB rgb(255, 121, 0)

HSL hsl(28 100% 50%)

CMYK cmyk(0, 53, 100, 0)

Luminance 0.3493

Contrast Black 7.99:1White 2.63:1

CSS

--color-ff7900: #FF7900;
.background-ff7900 { background-color: #FF7900; }
.text-ff7900 { color: #FF7900; }

HEX meaning and use

About #FF7900

#FF7900 is classified as a warm orange value with vibrant visual character. #FF7900 is visually closest to Safety Orange, a named orange color with HEX #FF7900.

The RGB channels are 255, 121, and 0, with red carrying the strongest channel weight. In HSL, the hue is 28deg with 100% saturation and 50% lightness, so this page treats it as a high-saturation, mid-lightness atlas color rather than a generic swatch.

Practical uses for this HEX value include color conversion, WCAG contrast checks, CSS color tokens, and high-energy accents. Its luminance is 0.3493, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 0.00, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text7.99:1AA Pass

White text2.63:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: #000000.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #FF7900 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000007.99:1 · AAA

White text#FFFFFF2.63:1 · Fail

Accessible Alternatives

Lemon#FFF700 · #000000 text · best 18.56:1 #FFA85C#FFA85C · #000000 text · best 11.01:1 Dark Orange#FF8C00 · #000000 text · best 9:1 Construction Orange#FF7F00 · #000000 text · best 8.29:1 Tangerine#F28500 · #000000 text · best 8.13:1

Generated Palette

Safety Orange#FF7900

#0088FF#0088FF

#FF0008#FF0008

Lemon#FFF700

#FFA85C#FFA85C

#A34C00#A34C00

Color Harmonies

#0088FF#0088FF

#FF0008#FF0008

Lemon#FFF700

#00FF77#00FF77

#7700FF#7700FF

Variants

#FFA85C#FFA85C

#A34C00#A34C00

#FF7700#FF7700

#E3791C#E3791C

#F5BC89#F5BC89

#FF8D29#FF8D29

Nearest Named Colors

Safety Orange#FF7900

Construction Orange#FF7F00

Tangerine#F28500

Hazard Orange#FF6700

Dark Orange#FF8C00

Luminance0.3493

Black text7.99:1AA Pass

White text2.63:1AA 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

Structured sections

Color systems

{"hex":"#FF7900","rgb":[255,121,0],"hsl":[28,100,50],"cmyk":[0,53,100,0],"luminance":0.3493,"contrast":{"black":7.99,"white":2.63}}

WCAG

{"AA":["#000000","#1A1A1A"],"AAA":["#000000"]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":7.99,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.63,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"Lemon","hex":"#FFF700","family":"yellow","bestTextColor":"#000000","contrastBlack":18.56,"contrastWhite":1.13,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#FFA85C","hex":"#FFA85C","family":"orange","bestTextColor":"#000000","contrastBlack":11.01,"contrastWhite":1.91,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Dark Orange","hex":"#FF8C00","family":"orange","bestTextColor":"#000000","contrastBlack":9,"contrastWhite":2.33,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Construction Orange","hex":"#FF7F00","family":"orange","bestTextColor":"#000000","contrastBlack":8.29,"contrastWhite":2.53,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"Tangerine","hex":"#F28500","family":"orange","bestTextColor":"#000000","contrastBlack":8.13,"contrastWhite":2.58,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]}]

AI context

{"semanticGroups":["warm orange","vibrant","vibrant orange","Safety Orange adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/ff7900.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/safety-orange.json","https://www.colorsencyclopedia.com/api/colors/construction-orange.json","https://www.colorsencyclopedia.com/api/colors/tangerine.json"]}

Harmonies

{"complementary":"#0088FF","analogous":["#FF0008","#FFF700"],"triadic":["#00FF77","#7700FF"],"tetradic":["#08FF00","#0088FF","#F600FF"],"splitComplementary":["#00FFF7","#0008FF"],"monochromatic":["#FFA85C","#FF7900","#A34C00"]}

Variants

{"light":"#FFA85C","dark":"#A34C00","saturated":"#FF7700","desaturated":"#E3791C","pastel":"#F5BC89","neon":"#FF8D29"}

Nearest named colors

[{"slug":"safety-orange","name":"Safety Orange","hex":"#FF7900","distance":0},{"slug":"construction-orange","name":"Construction Orange","hex":"#FF7F00","distance":6},{"slug":"tangerine","name":"Tangerine","hex":"#F28500","distance":17.69180601295413},{"slug":"hazard-orange","name":"Hazard Orange","hex":"#FF6700","distance":18},{"slug":"dark-orange","name":"Dark Orange","hex":"#FF8C00","distance":19}]

#FF7900

CSS

About #FF7900

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Machine-Readable HEX Data (JSON)

Related HEX Guides