#FEF57B#FEF57B

#FEF57B is a very light, vivid yellow. Relative luminance 0.878; OKLCH L 95.3% C 0.144 H 105.0°. Best body text is #000000 at 18.56:1 contrast (WCAG AA passes).

Color values

HEX	#FEF57B
RGB	rgb(254, 245, 123)
HSL	hsl(56, 98%, 74%)
HSV	hsv(56, 52%, 100%)
CMYK	cmyk(0%, 3.5%, 51.6%, 0.4%)
CIE-LAB	lab(95.08, -12.48, 59.07)
CIE-LCH	lch(95.08, 60.37, 101.93°)
OKLab	oklab(95.33% -0.0372 0.1389)
OKLCH	oklch(95.33% 0.144 105)
XYZ	xyz(77.1028, 87.8081, 31.6222)
Luminance	0.8781 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEF57B #7B84FE

analogous

#FEB47B #FEF57B #C6FE7B

triadic

#FEF57B #7BFEF5 #F57BFE

tetradic

#FEF57B #7BFEB4 #7B84FE #FE7BC6

square

#FEF57B #7BFEB4 #7B84FE #FE7BC6

split-complementary

#FEF57B #7BC6FE #B47BFE

monochromatic

#FDEB02 #FEF03E #FEF57B #FEFAB8 #FFFDE1

Accessibility & contrast

On white

1.13

#FEF57B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.56

#FEF57B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEF57B

18.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEF57B	#FFFFFF	#000000	##000000
##FEF57B	1.00	1.13	18.56	18.56
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.56	21.00	1.00	1.00
##000000	18.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE70

Deuteranopia (green-blind)

#FFF481

Tritanopia (blue-blind)

#FFE7D9

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #fef57b;
/* rgb */ color: rgb(254, 245, 123);
/* oklch */ color: oklch(95.3% 0.144 105.0);

Tailwind

colors: {
  custom: {
    50: '#fff8a4',
    500: '#fef57b',
    950: '#000000',
  },
}

SCSS

$custom: #fef57b;
$custom-light: #fff8a4;
$custom-dark: #000000;

JSON

{
  "hex": "#fef57b",
  "rgb": {
    "r": 254,
    "g": 245,
    "b": 123
  },
  "hsl": {
    "h": 55.878,
    "s": 98.496,
    "l": 73.922
  },
  "oklch": {
    "l": 0.95327,
    "c": 0.14376,
    "h": 105
  },
  "luminance": 0.87806
}

Semantic roles & 50–950 ramp

primary

#FEF57B

secondary

#414CDC

accent

#10E600

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#18170F

muted

#868580

Preview Lab

Preview with #FEF57B

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

Preview Lab → · Contrast checker → · Palette generator →