#FFF63B#FFF63B

#FFF63B is a very light, vivid yellow. Relative luminance 0.875; OKLCH L 95.1% C 0.189 H 106.6°. Best body text is #000000 at 18.50:1 contrast (WCAG AA passes).

Color values

HEX	#FFF63B
RGB	rgb(255, 246, 59)
HSL	hsl(57, 100%, 62%)
HSV	hsv(57, 77%, 100%)
CMYK	cmyk(0%, 3.5%, 76.9%, 0%)
CIE-LAB	lab(94.95, -16.20, 83.44)
CIE-LCH	lch(94.95, 84.99, 100.99°)
OKLab	oklab(95.09% -0.054 0.1814)
OKLCH	oklch(95.09% 0.189 106.6)
XYZ	xyz(74.9883, 87.4901, 17.0741)
Luminance	0.8749 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFF63B #3B44FF

analogous

#FF943B #FFF63B #A6FF3B

triadic

#FFF63B #3BFFF6 #F63BFF

tetradic

#FFF63B #3BFF94 #3B44FF #FF3BA6

square

#FFF63B #3BFF94 #3B44FF #FF3BA6

split-complementary

#FFF63B #3BA6FF #943BFF

monochromatic

#C0B700 #FDF100 #FFF63B #FFF978 #FFFCB5

Accessibility & contrast

On white

1.14

#FFF63B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.50

#FFF63B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFF63B

18.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFF63B	#FFFFFF	#000000	##000000
##FFF63B	1.00	1.14	18.50	18.50
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.50	21.00	1.00	1.00
##000000	18.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED00

Deuteranopia (green-blind)

#FFF44B

Tritanopia (blue-blind)

#FFE5D4

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #fff63b;
/* rgb */ color: rgb(255, 246, 59);
/* oklch */ color: oklch(95.1% 0.189 106.6);

Tailwind

colors: {
  custom: {
    50: '#fff880',
    500: '#fff63b',
    950: '#000000',
  },
}

SCSS

$custom: #fff63b;
$custom-light: #fff880;
$custom-dark: #000000;

JSON

{
  "hex": "#fff63b",
  "rgb": {
    "r": 255,
    "g": 246,
    "b": 59
  },
  "hsl": {
    "h": 57.245,
    "s": 100,
    "l": 61.569
  },
  "oklch": {
    "l": 0.95088,
    "c": 0.18929,
    "h": 106.6
  },
  "luminance": 0.87487
}

Semantic roles & 50–950 ramp

primary

#FFF63B

secondary

#2128BD

accent

#0BE600

background

#FFFFFB

surface

#FFFEF2

border

#D7D6CC

text

#19170B

muted

#87857E

Preview Lab

Preview with #FFF63B

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

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