#FEF37B#FEF37B

#FEF37B is a very light, vivid yellow. Relative luminance 0.866; OKLCH L 94.9% C 0.142 H 104.0°. Best body text is #000000 at 18.32:1 contrast (WCAG AA passes).

Color values

HEX	#FEF37B
RGB	rgb(254, 243, 123)
HSL	hsl(55, 98%, 74%)
HSV	hsv(55, 52%, 100%)
CMYK	cmyk(0%, 4.3%, 51.6%, 0.4%)
CIE-LAB	lab(94.57, -11.50, 58.47)
CIE-LCH	lch(94.57, 59.59, 101.12°)
OKLab	oklab(94.92% -0.0343 0.1376)
OKLCH	oklch(94.92% 0.142 104)
XYZ	xyz(76.5010, 86.6045, 31.4216)
Luminance	0.8660 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEF37B #7B86FE

analogous

#FEB27B #FEF37B #C8FE7B

triadic

#FEF37B #7BFEF3 #F37BFE

tetradic

#FEF37B #7BFEB2 #7B86FE #FE7BC8

square

#FEF37B #7BFEB2 #7B86FE #FE7BC8

split-complementary

#FEF37B #7BC8FE #B27BFE

monochromatic

#FDE802 #FEED3E #FEF37B #FEF9B8 #FFFCE1

Accessibility & contrast

On white

1.15

#FEF37B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.32

#FEF37B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEF37B

18.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEF37B	#FFFFFF	#000000	##000000
##FEF37B	1.00	1.15	18.32	18.32
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.32	21.00	1.00	1.00
##000000	18.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC70

Deuteranopia (green-blind)

#FFF281

Tritanopia (blue-blind)

#FFE5D8

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #fef37b;
/* rgb */ color: rgb(254, 243, 123);
/* oklch */ color: oklch(94.9% 0.142 104.0);

Tailwind

colors: {
  custom: {
    50: '#fff6a4',
    500: '#fef37b',
    950: '#000000',
  },
}

SCSS

$custom: #fef37b;
$custom-light: #fff6a4;
$custom-dark: #000000;

JSON

{
  "hex": "#fef37b",
  "rgb": {
    "r": 254,
    "g": 243,
    "b": 123
  },
  "hsl": {
    "h": 54.962,
    "s": 98.496,
    "l": 73.922
  },
  "oklch": {
    "l": 0.94921,
    "c": 0.14179,
    "h": 104
  },
  "luminance": 0.86602
}

Semantic roles & 50–950 ramp

primary

#FEF37B

secondary

#414EDC

accent

#13E600

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#18170F

muted

#868580

Preview Lab

Preview with #FEF37B

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

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