#FEF581#FEF581

#FEF581 is a very light, vivid yellow. Relative luminance 0.880; OKLCH L 95.4% C 0.138 H 104.7°. Best body text is #000000 at 18.59:1 contrast (WCAG AA passes).

Color values

HEX	#FEF581
RGB	rgb(254, 245, 129)
HSL	hsl(56, 98%, 75%)
HSV	hsv(56, 49%, 100%)
CMYK	cmyk(0%, 3.5%, 49.2%, 0.4%)
CIE-LAB	lab(95.15, -11.98, 56.40)
CIE-LCH	lch(95.15, 57.65, 101.99°)
OKLab	oklab(95.4% -0.0351 0.1336)
OKLCH	oklch(95.4% 0.138 104.7)
XYZ	xyz(77.4899, 87.9629, 33.6613)
Luminance	0.8796 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEF581 #818AFE

analogous

#FEB681 #FEF581 #C8FE81

triadic

#FEF581 #81FEF5 #F581FE

tetradic

#FEF581 #81FEB6 #818AFE #FE81C8

square

#FEF581 #81FEB6 #818AFE #FE81C8

split-complementary

#FEF581 #81C8FE #B681FE

monochromatic

#FDEB08 #FEF044 #FEF581 #FEFABE #FFFDE1

Accessibility & contrast

On white

1.13

#FEF581 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.59

#FEF581 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEF581

18.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEF581	#FFFFFF	#000000	##000000
##FEF581	1.00	1.13	18.59	18.59
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.59	21.00	1.00	1.00
##000000	18.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE77

Deuteranopia (green-blind)

#FFF486

Tritanopia (blue-blind)

#FFE8DA

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #fef581;
/* rgb */ color: rgb(254, 245, 129);
/* oklch */ color: oklch(95.4% 0.138 104.7);

Tailwind

colors: {
  custom: {
    50: '#fff8a8',
    500: '#fef581',
    950: '#000000',
  },
}

SCSS

$custom: #fef581;
$custom-light: #fff8a8;
$custom-dark: #000000;

JSON

{
  "hex": "#fef581",
  "rgb": {
    "r": 254,
    "g": 245,
    "b": 129
  },
  "hsl": {
    "h": 55.68,
    "s": 98.425,
    "l": 75.098
  },
  "oklch": {
    "l": 0.954,
    "c": 0.13811,
    "h": 104.7
  },
  "luminance": 0.87961
}

Semantic roles & 50–950 ramp

primary

#FEF581

secondary

#4651DD

accent

#11E600

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#181710

muted

#868581

Preview Lab

Preview with #FEF581

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

Preview Lab → · Contrast checker → · Palette generator →