#E4FF5B#E4FF5B

#E4FF5B is a very light, vivid yellow. Relative luminance 0.888; OKLCH L 95.1% C 0.186 H 118.1°. Best body text is #000000 at 18.75:1 contrast (WCAG AA passes).

Color values

HEX	#E4FF5B
RGB	rgb(228, 255, 91)
HSL	hsl(70, 100%, 68%)
HSV	hsv(70, 64%, 100%)
CMYK	cmyk(10.6%, 0%, 64.3%, 0%)
CIE-LAB	lab(95.48, -29.77, 72.48)
CIE-LCH	lch(95.48, 78.36, 112.33°)
OKLab	oklab(95.09% -0.0877 0.1642)
OKLCH	oklch(95.09% 0.186 118.1)
XYZ	xyz(69.6446, 88.7699, 23.3609)
Luminance	0.8877 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E4FF5B #765BFF

analogous

#FFC85B #E4FF5B #92FF5B

triadic

#E4FF5B #5BE4FF #FF5BE4

tetradic

#E4FF5B #5BFFC8 #765BFF #FF5B92

square

#E4FF5B #5BFFC8 #765BFF #FF5B92

split-complementary

#E4FF5B #5B92FF #C85BFF

monochromatic

#BBE000 #DAFF1E #E4FF5B #EEFF98 #F8FFD5

Accessibility & contrast

On white

1.12

#E4FF5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.75

#E4FF5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #E4FF5B

18.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E4FF5B	#FFFFFF	#000000	##000000
##E4FF5B	1.00	1.12	18.75	18.75
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.75	21.00	1.00	1.00
##000000	18.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF245

Deuteranopia (green-blind)

#FFF367

Tritanopia (blue-blind)

#F1F2DE

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #e4ff5b;
/* rgb */ color: rgb(228, 255, 91);
/* oklch */ color: oklch(95.1% 0.186 118.1);

Tailwind

colors: {
  custom: {
    50: '#f0ff91',
    500: '#e4ff5b',
    950: '#000000',
  },
}

SCSS

$custom: #e4ff5b;
$custom-light: #f0ff91;
$custom-dark: #000000;

JSON

{
  "hex": "#e4ff5b",
  "rgb": {
    "r": 228,
    "g": 255,
    "b": 91
  },
  "hsl": {
    "h": 69.878,
    "s": 100,
    "l": 67.843
  },
  "oklch": {
    "l": 0.95085,
    "c": 0.18619,
    "h": 118.1
  },
  "luminance": 0.88769
}

Semantic roles & 50–950 ramp

primary

#E4FF5B

secondary

#4326D8

accent

#00E626

background

#FFFFFC

surface

#FEFFF4

border

#D6D7CE

text

#17180D

muted

#85867F

Preview Lab

Preview with #E4FF5B

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

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