#E4F251#E4F251

#E4F251 is a very light, vivid yellow. Relative luminance 0.806; OKLCH L 92.2% C 0.179 H 114.2°. Best body text is #000000 at 17.12:1 contrast (WCAG AA passes).

Color values

HEX	#E4F251
RGB	rgb(228, 242, 81)
HSL	hsl(65, 86%, 63%)
HSV	hsv(65, 67%, 95%)
CMYK	cmyk(5.8%, 0%, 66.5%, 5.1%)
CIE-LAB	lab(91.95, -24.26, 72.62)
CIE-LCH	lch(91.95, 76.56, 108.47°)
OKLab	oklab(92.23% -0.0733 0.1631)
OKLCH	oklch(92.23% 0.179 114.2)
XYZ	xyz(65.2340, 80.5935, 19.9027)
Luminance	0.8059 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E4F251 #5F51F2

analogous

#F2AF51 #E4F251 #94F251

triadic

#E4F251 #51E4F2 #F251E4

tetradic

#E4F251 #51F2AF #5F51F2 #F25194

square

#E4F251 #51F2AF #5F51F2 #F25194

split-complementary

#E4F251 #5194F2 #AF51F2

monochromatic

#ACBB0E #DBEE18 #E4F251 #EDF68A #F6FBC3

Accessibility & contrast

On white

1.23

#E4F251 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.12

#E4F251 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #E4F251

17.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E4F251	#FFFFFF	#000000	##000000
##E4F251	1.00	1.23	17.12	17.12
#FFFFFF	1.23	1.00	21.00	21.00
#000000	17.12	21.00	1.00	1.00
##000000	17.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE639

Deuteranopia (green-blind)

#FFE95D

Tritanopia (blue-blind)

#F2E4D2

Achromatopsia (no color)

#E8E8E8

Design tokens & code

CSS

--color: #e4f251;
/* rgb */ color: rgb(228, 242, 81);
/* oklch */ color: oklch(92.2% 0.179 114.2);

Tailwind

colors: {
  custom: {
    50: '#f0f68a',
    500: '#e4f251',
    950: '#000000',
  },
}

SCSS

$custom: #e4f251;
$custom-light: #f0f68a;
$custom-dark: #000000;

JSON

{
  "hex": "#e4f251",
  "rgb": {
    "r": 228,
    "g": 242,
    "b": 81
  },
  "hsl": {
    "h": 65.217,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.92227,
    "c": 0.17877,
    "h": 114.2
  },
  "luminance": 0.80592
}

Semantic roles & 50–950 ramp

primary

#E4F251

secondary

#3A2EB9

accent

#03E316

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#17170C

muted

#85857F

Preview Lab

Preview with #E4F251

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

Preview Lab → · Contrast checker → · Palette generator →