#FFEF81#FFEF81

#FFEF81 is a very light, vivid yellow. Relative luminance 0.846; OKLCH L 94.3% C 0.132 H 101.1°. Best body text is #000000 at 17.92:1 contrast (WCAG AA passes).

Color values

HEX	#FFEF81
RGB	rgb(255, 239, 129)
HSL	hsl(52, 100%, 75%)
HSV	hsv(52, 49%, 100%)
CMYK	cmyk(0%, 6.3%, 49.4%, 0%)
CIE-LAB	lab(93.70, -8.63, 54.69)
CIE-LCH	lch(93.70, 55.36, 98.96°)
OKLab	oklab(94.27% -0.0255 0.1298)
OKLCH	oklch(94.27% 0.132 101.1)
XYZ	xyz(76.0712, 84.5806, 33.0832)
Luminance	0.8458 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFEF81 #8191FF

analogous

#FFB081 #FFEF81 #D0FF81

triadic

#FFEF81 #81FFEF #EF81FF

tetradic

#FFEF81 #81FFB0 #8191FF #FF81D0

square

#FFEF81 #81FFB0 #8191FF #FF81D0

split-complementary

#FFEF81 #81D0FF #B081FF

monochromatic

#FFDF07 #FFE744 #FFEF81 #FFF7BE #FFFBE0

Accessibility & contrast

On white

1.17

#FFEF81 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.92

#FFEF81 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFEF81

17.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFEF81	#FFFFFF	#000000	##000000
##FFEF81	1.00	1.17	17.92	17.92
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.92	21.00	1.00	1.00
##000000	17.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE977

Deuteranopia (green-blind)

#FFF086

Tritanopia (blue-blind)

#FFE2D5

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ffef81;
/* rgb */ color: rgb(255, 239, 129);
/* oklch */ color: oklch(94.3% 0.132 101.1);

Tailwind

colors: {
  custom: {
    50: '#fff4a8',
    500: '#ffef81',
    950: '#000000',
  },
}

SCSS

$custom: #ffef81;
$custom-light: #fff4a8;
$custom-dark: #000000;

JSON

{
  "hex": "#ffef81",
  "rgb": {
    "r": 255,
    "g": 239,
    "b": 129
  },
  "hsl": {
    "h": 52.381,
    "s": 100,
    "l": 75.294
  },
  "oklch": {
    "l": 0.94273,
    "c": 0.1323,
    "h": 101.1
  },
  "luminance": 0.84578
}

Semantic roles & 50–950 ramp

primary

#FFEF81

secondary

#4659DE

accent

#1DE600

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#181710

muted

#868581

Preview Lab

Preview with #FFEF81

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

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