#EFFB79#EFFB79

#EFFB79 is a very light, vivid yellow. Relative luminance 0.887; OKLCH L 95.3% C 0.154 H 113.7°. Best body text is #000000 at 18.75:1 contrast (WCAG AA passes).

Color values

HEX	#EFFB79
RGB	rgb(239, 251, 121)
HSL	hsl(66, 94%, 73%)
HSV	hsv(66, 52%, 98%)
CMYK	cmyk(4.8%, 0%, 51.8%, 1.6%)
CIE-LAB	lab(95.47, -21.42, 60.14)
CIE-LCH	lch(95.47, 63.84, 109.61°)
OKLab	oklab(95.35% -0.062 0.1412)
OKLCH	oklch(95.35% 0.154 113.7)
XYZ	xyz(73.5463, 88.7268, 31.3371)
Luminance	0.8873 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFB79 #8579FB

analogous

#FBC679 #EFFB79 #AEFB79

triadic

#EFFB79 #79EFFB #FB79EF

tetradic

#EFFB79 #79FBC6 #8579FB #FB79AE

square

#EFFB79 #79FBC6 #8579FB #FB79AE

split-complementary

#EFFB79 #79AEFB #C679FB

monochromatic

#DDF207 #E8F93E #EFFB79 #F6FDB4 #FBFEE1

Accessibility & contrast

On white

1.12

#EFFB79 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.75

#EFFB79 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFB79

18.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFB79	#FFFFFF	#000000	##000000
##EFFB79	1.00	1.12	18.75	18.75
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.75	21.00	1.00	1.00
##000000	18.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF16C

Deuteranopia (green-blind)

#FFF380

Tritanopia (blue-blind)

#FCEEDE

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #effb79;
/* rgb */ color: rgb(239, 251, 121);
/* oklch */ color: oklch(95.3% 0.154 113.7);

Tailwind

colors: {
  custom: {
    50: '#f6fca3',
    500: '#effb79',
    950: '#000000',
  },
}

SCSS

$custom: #effb79;
$custom-light: #f6fca3;
$custom-dark: #000000;

JSON

{
  "hex": "#effb79",
  "rgb": {
    "r": 239,
    "g": 251,
    "b": 121
  },
  "hsl": {
    "h": 65.538,
    "s": 94.203,
    "l": 72.941
  },
  "oklch": {
    "l": 0.95348,
    "c": 0.15423,
    "h": 113.7
  },
  "luminance": 0.88726
}

Semantic roles & 50–950 ramp

primary

#EFFB79

secondary

#4E40D8

accent

#00E615

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFB79

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →