Yellow (Munsell) (#EFCC00)

The hex code for Yellow (Munsell) is #EFCC00. It is rgb(239, 204, 0) in RGB, hsl(51, 100%, 47%) in HSL, and about cmyk(0%, 15%, 100%, 6%) in CMYK — a mid-tone yellow. Black text is the more readable choice on this background.

#EFCC00

HEX#EFCC00

RGBrgb(239, 204, 0)

HSLhsl(51, 100%, 47%)

HSVhsv(51, 100%, 94%)

CMYKcmyk(0%, 15%, 100%, 6%)

OKLCHoklch(85% 0.175 96.5)

LABlab(83.17% 1.50 82.84)

LCHlch(83.17% 82.86 88.97)

Colors Closest to Yellow (Munsell)

Yellow (Munsell) 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.

Safety Yellow#EED202ΔE 3.67 Jonquil#F4CA16ΔE 3.82 Cyber Yellow#FFD300ΔE 5.61 Gold#FFD700ΔE 5.85 School Bus Yellow#FFD800ΔE 6.04 Deep Lemon#F5C71AΔE 6.05

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

#EFCC00 Channel Values

How Yellow (Munsell) 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 204 · B 0	8-bit channels as sent to the display
HSL	H 51° · S 100% · L 47%	Easiest model for building lighter and darker variants
HSV	H 51° · S 100% · V 94%	Matches the picker in most design tools
CMYK	C 0% · M 15% · Y 100% · K 6%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	1.58:1 vs white · 13.31:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a Yellow (Munsell) 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 text1.58:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text13.31:1AA normal ✓AA large ✓AAA normal ✓

Need a specific ratio against another background? Open #EFCC00 in the contrast checker.

Colors That Go With Yellow (Munsell)

Pairings derived from color-wheel relationships. The complementary color sits opposite Yellow (Munsell); 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 Yellow (Munsell)

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 #EFCC00.

How Yellow (Munsell) 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#EFCC00

Protanopia#D3D300

Protanomaly#DED000

Deuteranopia#D8D800

Deuteranomaly#E2D400

Tritanopia#F8C0C0

Tritanomaly#F5C599

Achromatopsia#CECECE

Test a full palette in the color blindness simulator.

Using #EFCC00 in Code

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

CSS custom property--yellow-munsell: #EFCC00;

CSS backgroundbackground-color: #EFCC00;

Tailwind configcolors: { 'yellow-munsell': '#EFCC00' }

SwiftUIColor(red: 0.937, green: 0.800, blue: 0.000)

Android XML<color name="yellow_munsell">#EFCC00</color>

SVG fillfill="#EFCC00"

More Yellow Colors

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

efd595 eeff1b efdfbb eeed09 f0b100 eee8aa f0d799 eee600 f0dc82 eedc82 f0e68c eed202 f5c751 faf1dc fdfded ffd800 fff8d1 ffff57 2b2003 616100 947600 b5b35c cccc99 e3a60d

#EFCC00 Frequently Asked Questions

What is the hex code for Yellow (Munsell)?

The hex code for Yellow (Munsell) is #EFCC00. That is rgb(239, 204, 0) in RGB, hsl(51, 100%, 47%) in HSL, and approximately cmyk(0%, 15%, 100%, 6%) in CMYK.

What is the RGB value of #EFCC00?

#EFCC00 is rgb(239, 204, 0) — red 239, green 204, and blue 0 on the 0-255 scale.

What is the CMYK value of #EFCC00?

#EFCC00 converts to approximately cmyk(0%, 15%, 100%, 6%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #EFCC00 be black or white?

Black text is the more readable choice. #EFCC00 scores 1.58:1 against white and 13.31:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #EFCC00 as a CSS color keyword?

No. #EFCC00 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 gold (#FFD700) at a CIE76 distance of 5.85, which is clearly related but distinguishable side by side.

Open Yellow (Munsell) 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.