#FDF37B#FDF37B

#FDF37B is a very light, vivid yellow. Relative luminance 0.864; OKLCH L 94.8% C 0.142 H 104.5°. Best body text is #000000 at 18.28:1 contrast (WCAG AA passes).

Color values

HEX	#FDF37B
RGB	rgb(253, 243, 123)
HSL	hsl(55, 97%, 74%)
HSV	hsv(55, 51%, 99%)
CMYK	cmyk(0%, 4%, 51.4%, 0.8%)
CIE-LAB	lab(94.49, -11.89, 58.36)
CIE-LCH	lch(94.49, 59.56, 101.52°)
OKLab	oklab(94.84% -0.0354 0.1373)
OKLCH	oklch(94.84% 0.142 104.5)
XYZ	xyz(76.1359, 86.4163, 31.4045)
Luminance	0.8641 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FDF37B #7B85FD

analogous

#FDB27B #FDF37B #C6FD7B

triadic

#FDF37B #7BFDF3 #F37BFD

tetradic

#FDF37B #7BFDB2 #7B85FD #FD7BC6

square

#FDF37B #7BFDB2 #7B85FD #FD7BC6

split-complementary

#FDF37B #7BC6FD #B27BFD

monochromatic

#FAE704 #FCEE3F #FDF37B #FEF8B7 #FFFCE1

Accessibility & contrast

On white

1.15

#FDF37B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.28

#FDF37B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FDF37B

18.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FDF37B	#FFFFFF	#000000	##000000
##FDF37B	1.00	1.15	18.28	18.28
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.28	21.00	1.00	1.00
##000000	18.28	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: #fdf37b;
/* rgb */ color: rgb(253, 243, 123);
/* oklch */ color: oklch(94.8% 0.142 104.5);

Tailwind

colors: {
  custom: {
    50: '#fff6a4',
    500: '#fdf37b',
    950: '#000000',
  },
}

SCSS

$custom: #fdf37b;
$custom-light: #fff6a4;
$custom-dark: #000000;

JSON

{
  "hex": "#fdf37b",
  "rgb": {
    "r": 253,
    "g": 243,
    "b": 123
  },
  "hsl": {
    "h": 55.385,
    "s": 97.015,
    "l": 73.725
  },
  "oklch": {
    "l": 0.94838,
    "c": 0.14183,
    "h": 104.5
  },
  "luminance": 0.86414
}

Semantic roles & 50–950 ramp

primary

#FDF37B

secondary

#414DDB

accent

#12E600

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#18170F

muted

#868580

Preview Lab

Preview with #FDF37B

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

Preview Lab → · Contrast checker → · Palette generator →