#E4EF57#E4EF57

#E4EF57 is a very light, vivid yellow. Relative luminance 0.789; OKLCH L 91.6% C 0.171 H 113.3°. Best body text is #000000 at 16.78:1 contrast (WCAG AA passes).

Color values

HEX	#E4EF57
RGB	rgb(228, 239, 87)
HSL	hsl(64, 83%, 64%)
HSV	hsv(64, 64%, 94%)
CMYK	cmyk(4.6%, 0%, 63.6%, 6.3%)
CIE-LAB	lab(91.20, -22.48, 69.55)
CIE-LCH	lch(91.20, 73.10, 107.91°)
OKLab	oklab(91.64% -0.0677 0.1575)
OKLCH	oklch(91.64% 0.171 113.3)
XYZ	xyz(64.5834, 78.9164, 20.8452)
Luminance	0.7892 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E4EF57 #6257EF

analogous

#EFAE57 #E4EF57 #98EF57

triadic

#E4EF57 #57E4EF #EF57E4

tetradic

#E4EF57 #57EFAE #6257EF #EF5798

square

#E4EF57 #57EFAE #6257EF #EF5798

split-complementary

#E4EF57 #5798EF #AE57EF

monochromatic

#AEBA12 #DBEA1F #E4EF57 #EDF48F #F6FAC7

Accessibility & contrast

On white

1.25

#E4EF57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.78

#E4EF57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #E4EF57

16.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E4EF57	#FFFFFF	#000000	##000000
##E4EF57	1.00	1.25	16.78	16.78
#FFFFFF	1.25	1.00	21.00	21.00
#000000	16.78	21.00	1.00	1.00
##000000	16.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE443

Deuteranopia (green-blind)

#FFE761

Tritanopia (blue-blind)

#F2E1D0

Achromatopsia (no color)

#E6E6E6

Design tokens & code

CSS

--color: #e4ef57;
/* rgb */ color: rgb(228, 239, 87);
/* oklch */ color: oklch(91.6% 0.171 113.3);

Tailwind

colors: {
  custom: {
    50: '#f0f48d',
    500: '#e4ef57',
    950: '#000000',
  },
}

SCSS

$custom: #e4ef57;
$custom-light: #f0f48d;
$custom-dark: #000000;

JSON

{
  "hex": "#e4ef57",
  "rgb": {
    "r": 228,
    "g": 239,
    "b": 87
  },
  "hsl": {
    "h": 64.342,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.91636,
    "c": 0.17144,
    "h": 113.3
  },
  "luminance": 0.78915
}

Semantic roles & 50–950 ramp

primary

#E4EF57

secondary

#3B31B9

accent

#06DF16

background

#FFFFFC

surface

#FEFEF4

border

#D6D6CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #E4EF57

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

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