Urobilin (#E1AD21)

The hex code for Urobilin is #E1AD21. It is rgb(225, 173, 33) in RGB, hsl(44, 76%, 51%) in HSL, and about cmyk(0%, 23%, 85%, 12%) in CMYK — a mid-tone yellow. Black text is the more readable choice on this background.

#E1AD21

HEX#E1AD21

RGBrgb(225, 173, 33)

HSLhsl(44, 76%, 51%)

HSVhsv(44, 85%, 88%)

CMYKcmyk(0%, 23%, 85%, 12%)

OKLCHoklch(77.5% 0.151 85.5)

LABlab(74.06% 11.19 70.92)

LCHlch(74.06% 71.80 81.04)

Colors Closest to Urobilin

Urobilin is a registered color name. These are the named colors nearest to it, measured as CIE76 distance in CIELAB — a perceptual scale, so the ordering matches what the eye sees rather than how close the raw RGB numbers happen to sit.

Goldenrod#DAA520ΔE 3.68 Xanthous#F1B42FΔE 4.99 Mustard Yellow#E1AD01ΔE 5.05 Vivid Amber#CC9900ΔE 7.42 Neon Gold#CFAA01ΔE 7.49 Lemon Curry#CCA01DΔE 7.51

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

#E1AD21 Channel Values

How Urobilin 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 225 · G 173 · B 33	8-bit channels as sent to the display
HSL	H 44° · S 76% · L 51%	Easiest model for building lighter and darker variants
HSV	H 44° · S 85% · V 88%	Matches the picker in most design tools
CMYK	C 0% · M 23% · Y 85% · K 12%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	2.06:1 vs white · 10.2:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a Urobilin 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.

TextWhite text2.06:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text10.2:1AA normal ✓AA large ✓AAA normal ✓

Need a specific ratio against another background? Open #E1AD21 in the contrast checker.

Colors That Go With Urobilin

Pairings derived from color-wheel relationships. The complementary color sits opposite Urobilin; 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 Urobilin

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 #E1AD21.

How Urobilin 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#E1AD21

Protanopia#B7B71F

Protanomaly#C9B320

Deuteranopia#C0C012

Deuteranomaly#CEB919

Tritanopia#E8A3A3

Tritanomaly#E5A783

Achromatopsia#B5B5B5

Test a full palette in the color blindness simulator.

Using #E1AD21 in Code

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

CSS custom property--urobilin: #E1AD21;

CSS backgroundbackground-color: #E1AD21;

Tailwind configcolors: { 'urobilin': '#E1AD21' }

SwiftUIColor(red: 0.882, green: 0.678, blue: 0.129)

Android XML<color name="urobilin">#E1AD21</color>

SVG fillfill="#E1AD21"

More Yellow Colors

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

e1dfbc e1ad01 e2b33c e0e000 e3a60d e0bc5b e4d00a e0ae2e e4d96f e09600 e4e4a0 dde26a eded5e f3e5ab f8f8e7 fcfcf3 ffcc00 fff000 ffff00 ffffeb 525200 816213 a3a32e cbb91a

#E1AD21 Frequently Asked Questions

What is the hex code for Urobilin?

The hex code for Urobilin is #E1AD21. That is rgb(225, 173, 33) in RGB, hsl(44, 76%, 51%) in HSL, and approximately cmyk(0%, 23%, 85%, 12%) in CMYK.

What is the RGB value of #E1AD21?

#E1AD21 is rgb(225, 173, 33) — red 225, green 173, and blue 33 on the 0-255 scale.

What is the CMYK value of #E1AD21?

#E1AD21 converts to approximately cmyk(0%, 23%, 85%, 12%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #E1AD21 be black or white?

Black text is the more readable choice. #E1AD21 scores 2.06:1 against white and 10.2:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #E1AD21 as a CSS color keyword?

No. #E1AD21 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 goldenrod (#DAA520) at a CIE76 distance of 3.68, which is very hard to tell apart.

Open Urobilin 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 yellow in the color library, the guide to shades of yellow, or the full color library.