#FFF378#FFF378

#FFF378 is a very light, vivid yellow. Relative luminance 0.867; OKLCH L 95.0% C 0.145 H 103.7°. Best body text is #000000 at 18.34:1 contrast (WCAG AA passes).

Color values

HEX	#FFF378
RGB	rgb(255, 243, 120)
HSL	hsl(55, 100%, 74%)
HSV	hsv(55, 53%, 100%)
CMYK	cmyk(0%, 4.7%, 52.9%, 0%)
CIE-LAB	lab(94.62, -11.34, 59.91)
CIE-LCH	lch(94.62, 60.98, 100.72°)
OKLab	oklab(94.97% -0.0343 0.1404)
OKLCH	oklch(94.97% 0.145 103.7)
XYZ	xyz(76.6831, 86.7198, 30.4649)
Luminance	0.8672 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFF378 #7884FF

analogous

#FFAF78 #FFF378 #C7FF78

triadic

#FFF378 #78FFF3 #F378FF

tetradic

#FFF378 #78FFAF #7884FF #FF78C7

square

#FFF378 #78FFAF #7884FF #FF78C7

split-complementary

#FFF378 #78C7FF #AF78FF

monochromatic

#FDE600 #FFEE3B #FFF378 #FFF8B5 #FFFCE0

Accessibility & contrast

On white

1.14

#FFF378 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.34

#FFF378 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFF378

18.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFF378	#FFFFFF	#000000	##000000
##FFF378	1.00	1.14	18.34	18.34
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.34	21.00	1.00	1.00
##000000	18.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC6C

Deuteranopia (green-blind)

#FFF27E

Tritanopia (blue-blind)

#FFE5D7

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #fff378;
/* rgb */ color: rgb(255, 243, 120);
/* oklch */ color: oklch(95.0% 0.145 103.7);

Tailwind

colors: {
  custom: {
    50: '#fff6a2',
    500: '#fff378',
    950: '#000000',
  },
}

SCSS

$custom: #fff378;
$custom-light: #fff6a2;
$custom-dark: #000000;

JSON

{
  "hex": "#fff378",
  "rgb": {
    "r": 255,
    "g": 243,
    "b": 120
  },
  "hsl": {
    "h": 54.667,
    "s": 100,
    "l": 73.529
  },
  "oklch": {
    "l": 0.9497,
    "c": 0.14451,
    "h": 103.7
  },
  "luminance": 0.86717
}

Semantic roles & 50–950 ramp

primary

#FFF378

secondary

#3E4CDD

accent

#14E600

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#18170F

muted

#868580

Preview Lab

Preview with #FFF378

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

Preview Lab → · Contrast checker → · Palette generator →