#FEF583#FEF583

#FEF583 is a very light, vivid yellow. Relative luminance 0.880; OKLCH L 95.4% C 0.136 H 104.6°. Best body text is #000000 at 18.60:1 contrast (WCAG AA passes).

Color values

HEX	#FEF583
RGB	rgb(254, 245, 131)
HSL	hsl(56, 98%, 75%)
HSV	hsv(56, 48%, 100%)
CMYK	cmyk(0%, 3.5%, 48.4%, 0.4%)
CIE-LAB	lab(95.17, -11.81, 55.49)
CIE-LCH	lch(95.17, 56.74, 102.01°)
OKLab	oklab(95.43% -0.0344 0.1318)
OKLCH	oklch(95.43% 0.136 104.6)
XYZ	xyz(77.6242, 88.0166, 34.3683)
Luminance	0.8801 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEF583 #838CFE

analogous

#FEB783 #FEF583 #C9FE83

triadic

#FEF583 #83FEF5 #F583FE

tetradic

#FEF583 #83FEB7 #838CFE #FE83C9

square

#FEF583 #83FEB7 #838CFE #FE83C9

split-complementary

#FEF583 #83C9FE #B783FE

monochromatic

#FDEB0A #FEF046 #FEF583 #FEFAC0 #FFFDE1

Accessibility & contrast

On white

1.13

#FEF583 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.60

#FEF583 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEF583

18.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEF583	#FFFFFF	#000000	##000000
##FEF583	1.00	1.13	18.60	18.60
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.60	21.00	1.00	1.00
##000000	18.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE79

Deuteranopia (green-blind)

#FFF488

Tritanopia (blue-blind)

#FFE8DB

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #fef583;
/* rgb */ color: rgb(254, 245, 131);
/* oklch */ color: oklch(95.4% 0.136 104.6);

Tailwind

colors: {
  custom: {
    50: '#fff8a9',
    500: '#fef583',
    950: '#000000',
  },
}

SCSS

$custom: #fef583;
$custom-light: #fff8a9;
$custom-dark: #000000;

JSON

{
  "hex": "#fef583",
  "rgb": {
    "r": 254,
    "g": 245,
    "b": 131
  },
  "hsl": {
    "h": 55.61,
    "s": 98.4,
    "l": 75.49
  },
  "oklch": {
    "l": 0.95425,
    "c": 0.13618,
    "h": 104.6
  },
  "luminance": 0.88014
}

Semantic roles & 50–950 ramp

primary

#FEF583

secondary

#4853DD

accent

#11E600

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#181710

muted

#868581

Preview Lab

Preview with #FEF583

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

Preview Lab → · Contrast checker → · Palette generator →