#EFF28A#EFF28A

#EFF28A is a very light, vivid yellow. Relative luminance 0.837; OKLCH L 93.7% C 0.127 H 110.1°. Best body text is #000000 at 17.74:1 contrast (WCAG AA passes).

Color values

HEX	#EFF28A
RGB	rgb(239, 242, 138)
HSL	hsl(62, 80%, 75%)
HSV	hsv(62, 43%, 95%)
CMYK	cmyk(1.2%, 0%, 43%, 5.1%)
CIE-LAB	lab(93.32, -15.53, 49.66)
CIE-LCH	lch(93.32, 52.04, 107.36°)
OKLab	oklab(93.7% -0.0437 0.1195)
OKLCH	oklch(93.7% 0.127 110.1)
XYZ	xyz(71.9373, 83.6914, 36.4043)
Luminance	0.8369 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF28A #8D8AF2

analogous

#F2C18A #EFF28A #BBF28A

triadic

#EFF28A #8AEFF2 #F28AEF

tetradic

#EFF28A #8AF2C1 #8D8AF2 #F28ABB

square

#EFF28A #8AF2C1 #8D8AF2 #F28ABB

split-complementary

#EFF28A #8ABBF2 #C18AF2

monochromatic

#E0E61C #E7EC53 #EFF28A #F7F8C1 #FBFCE3

Accessibility & contrast

On white

1.18

#EFF28A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.74

#EFF28A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF28A

17.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF28A	#FFFFFF	#000000	##000000
##EFF28A	1.00	1.18	17.74	17.74
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.74	21.00	1.00	1.00
##000000	17.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA81

Deuteranopia (green-blind)

#FFEE8F

Tritanopia (blue-blind)

#FCE7D9

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff28a;
/* rgb */ color: rgb(239, 242, 138);
/* oklch */ color: oklch(93.7% 0.127 110.1);

Tailwind

colors: {
  custom: {
    50: '#f6f6ae',
    500: '#eff28a',
    950: '#000000',
  },
}

SCSS

$custom: #eff28a;
$custom-light: #f6f6ae;
$custom-dark: #000000;

JSON

{
  "hex": "#eff28a",
  "rgb": {
    "r": 239,
    "g": 242,
    "b": 138
  },
  "hsl": {
    "h": 61.731,
    "s": 80,
    "l": 74.51
  },
  "oklch": {
    "l": 0.93696,
    "c": 0.12727,
    "h": 110.1
  },
  "luminance": 0.8369
}

Semantic roles & 50–950 ramp

primary

#EFF28A

secondary

#5652CE

accent

#09DC0F

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFF28A

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

Preview Lab → · Contrast checker → · Palette generator →