#FEF578#FEF578

#FEF578 is a very light, vivid yellow. Relative luminance 0.877; OKLCH L 95.3% C 0.146 H 105.1°. Best body text is #000000 at 18.55:1 contrast (WCAG AA passes).

Color values

HEX	#FEF578
RGB	rgb(254, 245, 120)
HSL	hsl(56, 99%, 73%)
HSV	hsv(56, 53%, 100%)
CMYK	cmyk(0%, 3.5%, 52.8%, 0.4%)
CIE-LAB	lab(95.05, -12.72, 60.39)
CIE-LCH	lch(95.05, 61.72, 101.89°)
OKLab	oklab(95.29% -0.0382 0.1414)
OKLCH	oklch(95.29% 0.146 105.1)
XYZ	xyz(76.9179, 87.7341, 30.6483)
Luminance	0.8773 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEF578 #7881FE

analogous

#FEB278 #FEF578 #C4FE78

triadic

#FEF578 #78FEF5 #F578FE

tetradic

#FEF578 #78FEB2 #7881FE #FE78C4

square

#FEF578 #78FEB2 #7881FE #FE78C4

split-complementary

#FEF578 #78C4FE #B278FE

monochromatic

#FAE902 #FEF03B #FEF578 #FEF9B5 #FFFDE1

Accessibility & contrast

On white

1.13

#FEF578 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.55

#FEF578 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEF578

18.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEF578	#FFFFFF	#000000	##000000
##FEF578	1.00	1.13	18.55	18.55
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.55	21.00	1.00	1.00
##000000	18.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED6C

Deuteranopia (green-blind)

#FFF47E

Tritanopia (blue-blind)

#FFE7D9

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #fef578;
/* rgb */ color: rgb(254, 245, 120);
/* oklch */ color: oklch(95.3% 0.146 105.1);

Tailwind

colors: {
  custom: {
    50: '#fff8a2',
    500: '#fef578',
    950: '#000000',
  },
}

SCSS

$custom: #fef578;
$custom-light: #fff8a2;
$custom-dark: #000000;

JSON

{
  "hex": "#fef578",
  "rgb": {
    "r": 254,
    "g": 245,
    "b": 120
  },
  "hsl": {
    "h": 55.97,
    "s": 98.529,
    "l": 73.333
  },
  "oklch": {
    "l": 0.95292,
    "c": 0.14649,
    "h": 105.1
  },
  "luminance": 0.87732
}

Semantic roles & 50–950 ramp

primary

#FEF578

secondary

#3F49DC

accent

#0FE600

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#18170F

muted

#868580

Preview Lab

Preview with #FEF578

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

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