#E5F251#E5F251

#E5F251 is a very light, vivid yellow. Relative luminance 0.808; OKLCH L 92.3% C 0.178 H 113.9°. Best body text is #000000 at 17.15:1 contrast (WCAG AA passes).

Color values

HEX	#E5F251
RGB	rgb(229, 242, 81)
HSL	hsl(65, 86%, 63%)
HSV	hsv(65, 67%, 95%)
CMYK	cmyk(5.4%, 0%, 66.5%, 5.1%)
CIE-LAB	lab(92.02, -23.86, 72.71)
CIE-LCH	lch(92.02, 76.53, 108.17°)
OKLab	oklab(92.3% -0.0722 0.1633)
OKLCH	oklch(92.3% 0.179 113.9)
XYZ	xyz(65.5522, 80.7576, 19.9176)
Luminance	0.8076 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E5F251 #5E51F2

analogous

#F2AE51 #E5F251 #94F251

triadic

#E5F251 #51E5F2 #F251E5

tetradic

#E5F251 #51F2AE #5E51F2 #F25194

square

#E5F251 #51F2AE #5E51F2 #F25194

split-complementary

#E5F251 #5194F2 #AE51F2

monochromatic

#ADBB0E #DCEE18 #E5F251 #EEF68A #F6FBC3

Accessibility & contrast

On white

1.22

#E5F251 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.15

#E5F251 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #E5F251

17.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E5F251	#FFFFFF	#000000	##000000
##E5F251	1.00	1.22	17.15	17.15
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.15	21.00	1.00	1.00
##000000	17.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE739

Deuteranopia (green-blind)

#FFEA5D

Tritanopia (blue-blind)

#F4E4D2

Achromatopsia (no color)

#E8E8E8

Design tokens & code

CSS

--color: #e5f251;
/* rgb */ color: rgb(229, 242, 81);
/* oklch */ color: oklch(92.3% 0.178 113.9);

Tailwind

colors: {
  custom: {
    50: '#f1f68a',
    500: '#e5f251',
    950: '#000000',
  },
}

SCSS

$custom: #e5f251;
$custom-light: #f1f68a;
$custom-dark: #000000;

JSON

{
  "hex": "#e5f251",
  "rgb": {
    "r": 229,
    "g": 242,
    "b": 81
  },
  "hsl": {
    "h": 64.845,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.92304,
    "c": 0.1785,
    "h": 113.9
  },
  "luminance": 0.80756
}

Semantic roles & 50–950 ramp

primary

#E5F251

secondary

#392EB9

accent

#03E315

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#17170C

muted

#85857F

Preview Lab

Preview with #E5F251

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

Preview Lab → · Contrast checker → · Palette generator →