#FFF451#FFF451

#FFF451 is a very light, vivid yellow. Relative luminance 0.866; OKLCH L 94.8% C 0.176 H 105.5°. Best body text is #000000 at 18.31:1 contrast (WCAG AA passes).

Color values

HEX	#FFF451
RGB	rgb(255, 244, 81)
HSL	hsl(56, 100%, 66%)
HSV	hsv(56, 68%, 100%)
CMYK	cmyk(0%, 4.3%, 68.2%, 0%)
CIE-LAB	lab(94.55, -14.31, 75.91)
CIE-LCH	lch(94.55, 77.25, 100.68°)
OKLab	oklab(94.81% -0.0468 0.1692)
OKLCH	oklch(94.81% 0.176 105.5)
XYZ	xyz(75.0789, 86.5582, 20.5356)
Luminance	0.8656 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFF451 #515CFF

analogous

#FF9D51 #FFF451 #B3FF51

triadic

#FFF451 #51FFF4 #F451FF

tetradic

#FFF451 #51FF9D #515CFF #FF51B3

square

#FFF451 #51FF9D #515CFF #FF51B3

split-complementary

#FFF451 #51B3FF #9D51FF

monochromatic

#D6C800 #FFF014 #FFF451 #FFF88E #FFFCCB

Accessibility & contrast

On white

1.15

#FFF451 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.31

#FFF451 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFF451

18.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFF451	#FFFFFF	#000000	##000000
##FFF451	1.00	1.15	18.31	18.31
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.31	21.00	1.00	1.00
##000000	18.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB38

Deuteranopia (green-blind)

#FFF35C

Tritanopia (blue-blind)

#FFE4D4

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #fff451;
/* rgb */ color: rgb(255, 244, 81);
/* oklch */ color: oklch(94.8% 0.176 105.5);

Tailwind

colors: {
  custom: {
    50: '#fff78b',
    500: '#fff451',
    950: '#000000',
  },
}

SCSS

$custom: #fff451;
$custom-light: #fff78b;
$custom-dark: #000000;

JSON

{
  "hex": "#fff451",
  "rgb": {
    "r": 255,
    "g": 244,
    "b": 81
  },
  "hsl": {
    "h": 56.207,
    "s": 100,
    "l": 65.882
  },
  "oklch": {
    "l": 0.94811,
    "c": 0.17559,
    "h": 105.5
  },
  "luminance": 0.86555
}

Semantic roles & 50–950 ramp

primary

#FFF451

secondary

#252FD0

accent

#0FE600

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FFF451

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

Preview Lab → · Contrast checker → · Palette generator →