#FEF66C#FEF66C

#FEF66C is a very light, vivid yellow. Relative luminance 0.881; OKLCH L 95.4% C 0.158 H 105.9°. Best body text is #000000 at 18.61:1 contrast (WCAG AA passes).

Color values

HEX	#FEF66C
RGB	rgb(254, 246, 108)
HSL	hsl(57, 99%, 71%)
HSV	hsv(57, 57%, 100%)
CMYK	cmyk(0%, 3.1%, 57.5%, 0.4%)
CIE-LAB	lab(95.19, -14.09, 65.82)
CIE-LCH	lch(95.19, 67.31, 102.08°)
OKLab	oklab(95.37% -0.0433 0.1518)
OKLCH	oklch(95.37% 0.158 105.9)
XYZ	xyz(76.5380, 88.0675, 27.1514)
Luminance	0.8807 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEF66C #6C74FE

analogous

#FEAD6C #FEF66C #BDFE6C

triadic

#FEF66C #6CFEF6 #F66CFE

tetradic

#FEF66C #6CFEAD #6C74FE #FE6CBD

square

#FEF66C #6CFEAD #6C74FE #FE6CBD

split-complementary

#FEF66C #6CBDFE #AD6CFE

monochromatic

#EEE102 #FEF22F #FEF66C #FEFAA9 #FFFDE1

Accessibility & contrast

On white

1.13

#FEF66C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.61

#FEF66C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEF66C

18.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEF66C	#FFFFFF	#000000	##000000
##FEF66C	1.00	1.13	18.61	18.61
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.61	21.00	1.00	1.00
##000000	18.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE5D

Deuteranopia (green-blind)

#FFF474

Tritanopia (blue-blind)

#FFE7D8

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #fef66c;
/* rgb */ color: rgb(254, 246, 108);
/* oklch */ color: oklch(95.4% 0.158 105.9);

Tailwind

colors: {
  custom: {
    50: '#fff89b',
    500: '#fef66c',
    950: '#000000',
  },
}

SCSS

$custom: #fef66c;
$custom-light: #fff89b;
$custom-dark: #000000;

JSON

{
  "hex": "#fef66c",
  "rgb": {
    "r": 254,
    "g": 246,
    "b": 108
  },
  "hsl": {
    "h": 56.712,
    "s": 98.649,
    "l": 70.98
  },
  "oklch": {
    "l": 0.95366,
    "c": 0.15784,
    "h": 105.9
  },
  "luminance": 0.88065
}

Semantic roles & 50–950 ramp

primary

#FEF66C

secondary

#343DDA

accent

#0DE600

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #FEF66C

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

Preview Lab → · Contrast checker → · Palette generator →