#FEF309#FEF309

#FEF309 is a very light, highly saturated yellow. Relative luminance 0.852; OKLCH L 94.2% C 0.200 H 106.3°. Best body text is #000000 at 18.04:1 contrast (WCAG AA passes).

Color values

HEX	#FEF309
RGB	rgb(254, 243, 9)
HSL	hsl(57, 99%, 52%)
HSV	hsv(57, 96%, 100%)
CMYK	cmyk(0%, 4.3%, 96.5%, 0.4%)
CIE-LAB	lab(93.97, -16.15, 91.47)
CIE-LCH	lch(93.97, 92.89, 100.01°)
OKLab	oklab(94.25% -0.0563 0.1923)
OKLCH	oklch(94.25% 0.2 106.3)
XYZ	xyz(72.9764, 85.1947, 12.8586)
Luminance	0.8519 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEF309 #0914FE

analogous

#FE7909 #FEF309 #8FFE09

triadic

#FEF309 #09FEF3 #F309FE

tetradic

#FEF309 #09FE79 #0914FE #FE098F

square

#FEF309 #09FE79 #0914FE #FE098F

split-complementary

#FEF309 #098FFE #7909FE

monochromatic

#8C8601 #C9C001 #FEF309 #FEF646 #FEF983

Accessibility & contrast

On white

1.16

#FEF309 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.04

#FEF309 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEF309

18.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEF309	#FFFFFF	#000000	##000000
##FEF309	1.00	1.16	18.04	18.04
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.04	21.00	1.00	1.00
##000000	18.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE900

Deuteranopia (green-blind)

#FFF130

Tritanopia (blue-blind)

#FFE2CF

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #fef309;
/* rgb */ color: rgb(254, 243, 9);
/* oklch */ color: oklch(94.2% 0.200 106.3);

Tailwind

colors: {
  custom: {
    50: '#fff672',
    500: '#fef309',
    950: '#000000',
  },
}

SCSS

$custom: #fef309;
$custom-light: #fff672;
$custom-dark: #000000;

JSON

{
  "hex": "#fef309",
  "rgb": {
    "r": 254,
    "g": 243,
    "b": 9
  },
  "hsl": {
    "h": 57.306,
    "s": 99.19,
    "l": 51.569
  },
  "oklch": {
    "l": 0.94248,
    "c": 0.20039,
    "h": 106.3
  },
  "luminance": 0.85192
}

Semantic roles & 50–950 ramp

primary

#FEF309

secondary

#1A2091

accent

#32FF29

background

#FFFFFB

surface

#FFFEF1

border

#D7D6CB

text

#19170A

muted

#87857D

Preview Lab

Preview with #FEF309

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

Preview Lab → · Contrast checker → · Palette generator →