#FFFB51#FFFB51

#FFFB51 is a very light, vivid yellow. Relative luminance 0.908; OKLCH L 96.2% C 0.182 H 108.0°. Best body text is #000000 at 19.17:1 contrast (WCAG AA passes).

Color values

HEX	#FFFB51
RGB	rgb(255, 251, 81)
HSL	hsl(59, 100%, 66%)
HSV	hsv(59, 68%, 100%)
CMYK	cmyk(0%, 1.6%, 68.2%, 0%)
CIE-LAB	lab(96.35, -17.70, 77.69)
CIE-LCH	lch(96.35, 79.68, 102.83°)
OKLab	oklab(96.24% -0.0563 0.173)
OKLCH	oklch(96.24% 0.182 108)
XYZ	xyz(77.2252, 90.8509, 21.2510)
Luminance	0.9085 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFFB51 #5155FF

analogous

#FFA451 #FFFB51 #ACFF51

triadic

#FFFB51 #51FFFB #FB51FF

tetradic

#FFFB51 #51FFA4 #5155FF #FF51AC

square

#FFFB51 #51FFA4 #5155FF #FF51AC

split-complementary

#FFFB51 #51ACFF #A451FF

monochromatic

#D6D100 #FFFA14 #FFFB51 #FFFC8E #FFFECB

Accessibility & contrast

On white

1.10

#FFFB51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.17

#FFFB51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFFB51

19.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFFB51	#FFFFFF	#000000	##000000
##FFFB51	1.00	1.10	19.17	19.17
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.17	21.00	1.00	1.00
##000000	19.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF136

Deuteranopia (green-blind)

#FFF75D

Tritanopia (blue-blind)

#FFEBD9

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #fffb51;
/* rgb */ color: rgb(255, 251, 81);
/* oklch */ color: oklch(96.2% 0.182 108.0);

Tailwind

colors: {
  custom: {
    50: '#fffc8b',
    500: '#fffb51',
    950: '#000000',
  },
}

SCSS

$custom: #fffb51;
$custom-light: #fffc8b;
$custom-dark: #000000;

JSON

{
  "hex": "#fffb51",
  "rgb": {
    "r": 255,
    "g": 251,
    "b": 81
  },
  "hsl": {
    "h": 58.621,
    "s": 100,
    "l": 65.882
  },
  "oklch": {
    "l": 0.96244,
    "c": 0.18195,
    "h": 108
  },
  "luminance": 0.90848
}

Semantic roles & 50–950 ramp

primary

#FFFB51

secondary

#2529D0

accent

#05E600

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FFFB51

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

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