#EFB525 Color

#EFB525 is rgb(239, 181, 37) in RGB, hsl(43, 86%, 54%) in HSL, and about cmyk(0%, 24%, 85%, 6%) in CMYK. It has no registered color name of its own — the closest is Xanthous (#F1B42F), very hard to tell apart at ΔE 3.13. Black text is the more readable choice on this background.

#EFB525

HEX#EFB525

RGBrgb(239, 181, 37)

HSLhsl(43, 86%, 54%)

HSVhsv(43, 85%, 94%)

CMYKcmyk(0%, 24%, 85%, 6%)

OKLCHoklch(80.5% 0.157 83.8)

LABlab(77.54% 13.20 73.37)

LCHlch(77.54% 74.54 79.80)

What #EFB525 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 #EFB525, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Xanthous#F1B42FΔE 3.13 Urobilin#E1AD21ΔE 4.71 Orange-yellow#F5BD1FΔE 4.74 Mustard Yellow#E1AD01ΔE 4.98 Spanish Yellow#F6B511ΔE 5.64 Saffron#F4C430ΔE 6.66

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

#EFB525 Channel Values

How #EFB525 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 239 · G 181 · B 37	8-bit channels as sent to the display
HSL	H 43° · S 86% · L 54%	Easiest model for building lighter and darker variants
HSV	H 43° · S 85% · V 94%	Matches the picker in most design tools
CMYK	C 0% · M 24% · Y 85% · K 6%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	1.86:1 vs white · 11.31:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #EFB525 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 text1.86:1AA normal AA large AAA normal

TextBlack text11.31:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #EFB525 in the contrast checker.

Colors That Go With #EFB525

Pairings derived from color-wheel relationships. The complementary color sits opposite #EFB525; 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 #EFB525

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 #EFB525.

How #EFB525 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#EFB525

Protanopia#C1C123

Protanomaly#D5BC24

Deuteranopia#CBCB15

Deuteranomaly#DAC21C

Tritanopia#F6ABAB

Tritanomaly#F3AF89

Achromatopsia#BEBEBE

Test a full palette in the color blindness simulator.

Using #EFB525 in Code

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

CSS custom property--color-efb525: #EFB525;

CSS backgroundbackground-color: #EFB525;

Tailwind configcolors: { 'color-efb525': '#EFB525' }

SwiftUIColor(red: 0.937, green: 0.710, blue: 0.145)

Android XML<color name="color_efb525">#EFB525</color>

SVG fillfill="#EFB525"

More Yellow Colors

#EFB525 sits in the yellow family. These are its neighbours across that family's full range, each with its own breakdown.

181807 fffff5 1b1404 fffff0 1f1f00 ffffeb 242400 ffffe5 2a2913 ffffe0 2b2003 ffffd6 573a00 856514 b0a94f cc9900 e0e000 edeae0 f2f1e3 f8f3c9 fcfce8 ffcc00 fff000 ffff0f

#EFB525 Frequently Asked Questions

What color is #EFB525?

#EFB525 is a mid-tone yellow — rgb(239, 181, 37) in RGB and hsl(43, 86%, 54%) in HSL. It carries no registered color name of its own; the closest named color is Xanthous (#F1B42F), which is very hard to tell apart at a CIE76 distance of 3.13.

What is the RGB value of #EFB525?

#EFB525 is rgb(239, 181, 37) — red 239, green 181, and blue 37 on the 0-255 scale.

What is the CMYK value of #EFB525?

#EFB525 converts to approximately cmyk(0%, 24%, 85%, 6%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #EFB525 be black or white?

Black text is the more readable choice. #EFB525 scores 1.86:1 against white and 11.31:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #EFB525 as a CSS color keyword?

No. #EFB525 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 7.85, which is clearly related but distinguishable side by side.

Open #EFB525 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.