#FEF666#FEF666

#FEF666 is a very light, vivid yellow. Relative luminance 0.879; OKLCH L 95.3% C 0.163 H 106.1°. Best body text is #000000 at 18.59:1 contrast (WCAG AA passes).

Color values

HEX	#FEF666
RGB	rgb(254, 246, 102)
HSL	hsl(57, 99%, 70%)
HSV	hsv(57, 60%, 100%)
CMYK	cmyk(0%, 3.1%, 59.8%, 0.4%)
CIE-LAB	lab(95.14, -14.49, 68.29)
CIE-LCH	lch(95.14, 69.81, 101.98°)
OKLab	oklab(95.31% -0.0451 0.1563)
OKLCH	oklch(95.31% 0.163 106.1)
XYZ	xyz(76.2296, 87.9442, 25.5272)
Luminance	0.8794 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEF666 #666EFE

analogous

#FEAA66 #FEF666 #BAFE66

triadic

#FEF666 #66FEF6 #F666FE

tetradic

#FEF666 #66FEAA #666EFE #FE66BA

square

#FEF666 #66FEAA #666EFE #FE66BA

split-complementary

#FEF666 #66BAFE #AA66FE

monochromatic

#E8DC02 #FEF229 #FEF666 #FEFAA3 #FFFDE0

Accessibility & contrast

On white

1.13

#FEF666 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.59

#FEF666 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEF666

18.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEF666	#FFFFFF	#000000	##000000
##FEF666	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)

#FFEE55

Deuteranopia (green-blind)

#FFF46E

Tritanopia (blue-blind)

#FFE7D7

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #fef666;
/* rgb */ color: rgb(254, 246, 102);
/* oklch */ color: oklch(95.3% 0.163 106.1);

Tailwind

colors: {
  custom: {
    50: '#fff897',
    500: '#fef666',
    950: '#000000',
  },
}

SCSS

$custom: #fef666;
$custom-light: #fff897;
$custom-dark: #000000;

JSON

{
  "hex": "#fef666",
  "rgb": {
    "r": 254,
    "g": 246,
    "b": 102
  },
  "hsl": {
    "h": 56.842,
    "s": 98.701,
    "l": 69.804
  },
  "oklch": {
    "l": 0.95308,
    "c": 0.16266,
    "h": 106.1
  },
  "luminance": 0.87942
}

Semantic roles & 50–950 ramp

primary

#FEF666

secondary

#2F38D9

accent

#0CE600

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #FEF666

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

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