#FFA51F Color

#FFA51F is rgb(255, 165, 31) in RGB, hsl(36, 100%, 56%) in HSL, and about cmyk(0%, 35%, 88%, 0%) in CMYK. It has no registered color name of its own — the closest is Bright Yellow (Crayola) (#FFAA1D), very hard to tell apart at ΔE 3.02. Black text is the more readable choice on this background.

#FFA51F

HEX#FFA51F

RGBrgb(255, 165, 31)

HSLhsl(36, 100%, 56%)

HSVhsv(36, 88%, 100%)

CMYKcmyk(0%, 35%, 88%, 0%)

OKLCHoklch(79.3% 0.166 69.2)

LABlab(75.64% 27.77 74.41)

LCHlch(75.64% 79.43 69.54)

What #FFA51F Is Called

Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #FFA51F, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Bright Yellow (Crayola)#FFAA1DΔE 3.02 Cantaloupe#FFA62BΔE 3.1 Orange#FFA500ΔE 4.71 Vivid Orange Peel#FFA000ΔE 4.77 Orange (RYB)#FB9902ΔE 5.68 Vivid Gamboge#FF9900ΔE 7.05

Browse the full index of named colors A-Z or every orange in the library.

#FFA51F Channel Values

How #FFA51F breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

Model	Channels	Notes
RGB	R 255 · G 165 · B 31	8-bit channels as sent to the display
HSL	H 36° · S 100% · L 56%	Easiest model for building lighter and darker variants
HSV	H 36° · S 88% · V 100%	Matches the picker in most design tools
CMYK	C 0% · M 35% · Y 88% · K 0%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	1.97:1 vs white · 10.65:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #FFA51F background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.

Fails AAWhite text1.97:1AA normal AA large AAA normal

TextBlack text10.65:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #FFA51F in the contrast checker.

Colors That Go With #FFA51F

Pairings derived from color-wheel relationships. The complementary color sits opposite #FFA51F; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base

Complementary

Analogous

Analogous

Triadic

Triadic

Split comp.

Split comp.

Tints & Shades of #FFA51F

Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.

Tints

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #FFA51F.

How #FFA51F Looks with Color Vision Deficiency

Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.

Typical#FFA51F

Protanopia#B9B91B

Protanomaly#D8B11D

Deuteranopia#C9C900

Deuteranomaly#E1BC0B

Tritanopia#FF9C9C

Tritanomaly#FF9F7D

Achromatopsia#B9B9B9

Test a full palette in the color blindness simulator.

Using #FFA51F in Code

Copy-ready declarations for the places this color usually ends up.

CSS custom property--color-ffa51f: #FFA51F;

CSS backgroundbackground-color: #FFA51F;

Tailwind configcolors: { 'color-ffa51f': '#FFA51F' }

SwiftUIColor(red: 1.000, green: 0.647, blue: 0.122)

Android XML<color name="color_ffa51f">#FFA51F</color>

SVG fillfill="#FFA51F"

More Orange Colors

#FFA51F sits in the orange family. These are its neighbours across that family's full range, each with its own breakdown.

8b7d6b fff9f5 967969 fff9f0 987456 fff8f0 987654 fff8eb 9b7653 fff7ed 9c8b6e fff7eb c8ad7f dba875 e3dac9 eba675 f1ddcf f8dcd3 fcf5ee ff681f ff9933 ffb83d ffd68a ffe7d1

#FFA51F Frequently Asked Questions

What color is #FFA51F?

#FFA51F is a mid-tone orange — rgb(255, 165, 31) in RGB and hsl(36, 100%, 56%) in HSL. It carries no registered color name of its own; the closest named color is Bright Yellow (Crayola) (#FFAA1D), which is very hard to tell apart at a CIE76 distance of 3.02.

What is the RGB value of #FFA51F?

#FFA51F is rgb(255, 165, 31) — red 255, green 165, and blue 31 on the 0-255 scale.

What is the CMYK value of #FFA51F?

#FFA51F converts to approximately cmyk(0%, 35%, 88%, 0%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #FFA51F be black or white?

Black text is the more readable choice. #FFA51F scores 1.97:1 against white and 10.65:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #FFA51F as a CSS color keyword?

No. #FFA51F is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is orange (#FFA500) at a CIE76 distance of 4.71, which is very hard to tell apart.

Open #FFA51F in a Tool

Hex to RGB Hex to HSL Hex to CMYK Hex to OKLCH Hex to Pantone Build a palette Make a gradient

Keep exploring: every orange in the color library, the guide to shades of orange, or the full color library.