Watermelon Yellow (#EEFF1B)

The hex code for Watermelon Yellow is #EEFF1B. It is rgb(238, 255, 27) in RGB, hsl(64, 100%, 55%) in HSL, and about cmyk(7%, 0%, 89%, 0%) in CMYK — a mid-tone yellow. Black text is the more readable choice on this background.

#EEFF1B

HEX#EEFF1B

RGBrgb(238, 255, 27)

HSLhsl(64, 100%, 55%)

HSVhsv(64, 89%, 100%)

CMYKcmyk(7%, 0%, 89%, 0%)

OKLCHoklch(95.5% 0.212 114.6)

LABlab(96.32% -22.37 89.42)

LCHlch(96.32% 92.17 104.05)

Colors Closest to Watermelon Yellow

Watermelon Yellow 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.

Lemon Lime#E3FF00ΔE 4.82 Dandelion#DDF719ΔE 5.53 Lemon Glacier#FDFF00ΔE 7.02 Yellow#FFFF00ΔE 7.83 Yellow (RYB)#FEFE33ΔE 7.9 Maximum Yellow#FAFA37ΔE 9.18

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

#EEFF1B Channel Values

How Watermelon Yellow 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 238 · G 255 · B 27	8-bit channels as sent to the display
HSL	H 64° · S 100% · L 55%	Easiest model for building lighter and darker variants
HSV	H 64° · S 89% · V 100%	Matches the picker in most design tools
CMYK	C 7% · M 0% · Y 89% · K 0%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	1.11:1 vs white · 18.96:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a Watermelon Yellow 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 text1.11:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text18.96:1AA normal ✓AA large ✓AAA normal ✓

Need a specific ratio against another background? Open #EEFF1B in the contrast checker.

Colors That Go With Watermelon Yellow

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

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 #EEFF1B.

How Watermelon Yellow 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#EEFF1B

Protanopia#FCFC1C

Protanomaly#F7FD1C

Deuteranopia#FAFA21

Deuteranomaly#F5FC1F

Tritanopia#FDF0F0

Tritanomaly#F7F6C0

Achromatopsia#F3F3F3

Test a full palette in the color blindness simulator.

Using #EEFF1B in Code

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

CSS custom property--watermelon-yellow: #EEFF1B;

CSS backgroundbackground-color: #EEFF1B;

Tailwind configcolors: { 'watermelon-yellow': '#EEFF1B' }

SwiftUIColor(red: 0.933, green: 1.000, blue: 0.106)

Android XML<color name="watermelon_yellow">#EEFF1B</color>

SVG fillfill="#EEFF1B"

More Yellow Colors

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

efcc00 eeed09 efd595 eee8aa efdfbb eee600 f0b100 eedc82 f0d799 eed202 f0dc82 ededbf f5c71a fae7b5 fdfd96 ffd700 fff700 ffff47 2a2913 5f5c2b 93932a b5a642 cccc66 e2b33c

#EEFF1B Frequently Asked Questions

What is the hex code for Watermelon Yellow?

The hex code for Watermelon Yellow is #EEFF1B. That is rgb(238, 255, 27) in RGB, hsl(64, 100%, 55%) in HSL, and approximately cmyk(7%, 0%, 89%, 0%) in CMYK.

What is the RGB value of #EEFF1B?

#EEFF1B is rgb(238, 255, 27) — red 238, green 255, and blue 27 on the 0-255 scale.

What is the CMYK value of #EEFF1B?

#EEFF1B converts to approximately cmyk(7%, 0%, 89%, 0%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #EEFF1B be black or white?

Black text is the more readable choice. #EEFF1B scores 1.11:1 against white and 18.96:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #EEFF1B as a CSS color keyword?

No. #EEFF1B 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 yellow (#FFFF00) at a CIE76 distance of 7.83, which is clearly related but distinguishable side by side.

Open Watermelon Yellow 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.