#EFF288#EFF288

#EFF288 is a very light, vivid yellow. Relative luminance 0.836; OKLCH L 93.7% C 0.129 H 110.1°. Best body text is #000000 at 17.73:1 contrast (WCAG AA passes).

Color values

HEX	#EFF288
RGB	rgb(239, 242, 136)
HSL	hsl(62, 80%, 74%)
HSV	hsv(62, 44%, 95%)
CMYK	cmyk(1.2%, 0%, 43.8%, 5.1%)
CIE-LAB	lab(93.29, -15.73, 50.59)
CIE-LCH	lch(93.29, 52.98, 107.27°)
OKLab	oklab(93.67% -0.0444 0.1215)
OKLCH	oklch(93.67% 0.129 110.1)
XYZ	xyz(71.7939, 83.6340, 35.6488)
Luminance	0.8363 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF288 #8B88F2

analogous

#F2C088 #EFF288 #BAF288

triadic

#EFF288 #88EFF2 #F288EF

tetradic

#EFF288 #88F2C0 #8B88F2 #F288BA

square

#EFF288 #88F2C0 #8B88F2 #F288BA

split-complementary

#EFF288 #88BAF2 #C088F2

monochromatic

#E0E61A #E8EC51 #EFF288 #F6F8BF #FBFCE3

Accessibility & contrast

On white

1.18

#EFF288 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.73

#EFF288 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF288

17.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF288	#FFFFFF	#000000	##000000
##EFF288	1.00	1.18	17.73	17.73
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.73	21.00	1.00	1.00
##000000	17.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA7F

Deuteranopia (green-blind)

#FFED8D

Tritanopia (blue-blind)

#FCE6D9

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff288;
/* rgb */ color: rgb(239, 242, 136);
/* oklch */ color: oklch(93.7% 0.129 110.1);

Tailwind

colors: {
  custom: {
    50: '#f6f6ac',
    500: '#eff288',
    950: '#000000',
  },
}

SCSS

$custom: #eff288;
$custom-light: #f6f6ac;
$custom-dark: #000000;

JSON

{
  "hex": "#eff288",
  "rgb": {
    "r": 239,
    "g": 242,
    "b": 136
  },
  "hsl": {
    "h": 61.698,
    "s": 80.303,
    "l": 74.118
  },
  "oklch": {
    "l": 0.93668,
    "c": 0.12933,
    "h": 110.1
  },
  "luminance": 0.83633
}

Semantic roles & 50–950 ramp

primary

#EFF288

secondary

#5450CE

accent

#09DD0F

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFF288

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

Preview Lab → · Contrast checker → · Palette generator →