#FFF359#FFF359

#FFF359 is a very light, vivid yellow. Relative luminance 0.861; OKLCH L 94.7% C 0.169 H 104.9°. Best body text is #000000 at 18.22:1 contrast (WCAG AA passes).

Color values

HEX	#FFF359
RGB	rgb(255, 243, 89)
HSL	hsl(56, 100%, 67%)
HSV	hsv(56, 65%, 100%)
CMYK	cmyk(0%, 4.7%, 65.1%, 0%)
CIE-LAB	lab(94.35, -13.40, 72.70)
CIE-LCH	lch(94.35, 73.93, 100.45°)
OKLab	oklab(94.67% -0.0434 0.1637)
OKLCH	oklch(94.67% 0.169 104.9)
XYZ	xyz(75.0966, 86.0852, 22.1096)
Luminance	0.8608 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFF359 #5965FF

analogous

#FFA059 #FFF359 #B8FF59

triadic

#FFF359 #59FFF3 #F359FF

tetradic

#FFF359 #59FFA0 #5965FF #FF59B8

square

#FFF359 #59FFA0 #5965FF #FF59B8

split-complementary

#FFF359 #59B8FF #A059FF

monochromatic

#DECE00 #FFEF1C #FFF359 #FFF796 #FFFCD3

Accessibility & contrast

On white

1.15

#FFF359 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.22

#FFF359 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFF359

18.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFF359	#FFFFFF	#000000	##000000
##FFF359	1.00	1.15	18.22	18.22
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.22	21.00	1.00	1.00
##000000	18.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB44

Deuteranopia (green-blind)

#FFF263

Tritanopia (blue-blind)

#FFE3D3

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #fff359;
/* rgb */ color: rgb(255, 243, 89);
/* oklch */ color: oklch(94.7% 0.169 104.9);

Tailwind

colors: {
  custom: {
    50: '#fff68f',
    500: '#fff359',
    950: '#000000',
  },
}

SCSS

$custom: #fff359;
$custom-light: #fff68f;
$custom-dark: #000000;

JSON

{
  "hex": "#fff359",
  "rgb": {
    "r": 255,
    "g": 243,
    "b": 89
  },
  "hsl": {
    "h": 55.663,
    "s": 100,
    "l": 67.451
  },
  "oklch": {
    "l": 0.94668,
    "c": 0.1694,
    "h": 104.9
  },
  "luminance": 0.86082
}

Semantic roles & 50–950 ramp

primary

#FFF359

secondary

#2633D6

accent

#11E600

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FFF359

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

Preview Lab → · Contrast checker → · Palette generator →