#FEF571#FEF571

#FEF571 is a very light, vivid yellow. Relative luminance 0.876; OKLCH L 95.2% C 0.153 H 105.3°. Best body text is #000000 at 18.51:1 contrast (WCAG AA passes).

Color values

HEX	#FEF571
RGB	rgb(254, 245, 113)
HSL	hsl(56, 99%, 72%)
HSV	hsv(56, 56%, 100%)
CMYK	cmyk(0%, 3.5%, 55.5%, 0.4%)
CIE-LAB	lab(94.98, -13.25, 63.42)
CIE-LCH	lch(94.98, 64.79, 101.80°)
OKLab	oklab(95.21% -0.0404 0.1472)
OKLCH	oklch(95.21% 0.153 105.3)
XYZ	xyz(76.5085, 87.5703, 28.4922)
Luminance	0.8757 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEF571 #717AFE

analogous

#FEAF71 #FEF571 #C1FE71

triadic

#FEF571 #71FEF5 #F571FE

tetradic

#FEF571 #71FEAF #717AFE #FE71C1

square

#FEF571 #71FEAF #717AFE #FE71C1

split-complementary

#FEF571 #71C1FE #AF71FE

monochromatic

#F3E302 #FEF134 #FEF571 #FEF9AE #FFFDE1

Accessibility & contrast

On white

1.13

#FEF571 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.51

#FEF571 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEF571

18.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEF571	#FFFFFF	#000000	##000000
##FEF571	1.00	1.13	18.51	18.51
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.51	21.00	1.00	1.00
##000000	18.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED63

Deuteranopia (green-blind)

#FFF378

Tritanopia (blue-blind)

#FFE7D8

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #fef571;
/* rgb */ color: rgb(254, 245, 113);
/* oklch */ color: oklch(95.2% 0.153 105.3);

Tailwind

colors: {
  custom: {
    50: '#fff89e',
    500: '#fef571',
    950: '#000000',
  },
}

SCSS

$custom: #fef571;
$custom-light: #fff89e;
$custom-dark: #000000;

JSON

{
  "hex": "#fef571",
  "rgb": {
    "r": 254,
    "g": 245,
    "b": 113
  },
  "hsl": {
    "h": 56.17,
    "s": 98.601,
    "l": 71.961
  },
  "oklch": {
    "l": 0.95214,
    "c": 0.15267,
    "h": 105.3
  },
  "luminance": 0.87568
}

Semantic roles & 50–950 ramp

primary

#FEF571

secondary

#3943DB

accent

#0FE600

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170F

muted

#868580

Preview Lab

Preview with #FEF571

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

Preview Lab → · Contrast checker → · Palette generator →