#E4EF5B#E4EF5B

#E4EF5B is a very light, vivid yellow. Relative luminance 0.790; OKLCH L 91.7% C 0.169 H 113.3°. Best body text is #000000 at 16.80:1 contrast (WCAG AA passes).

Color values

HEX	#E4EF5B
RGB	rgb(228, 239, 91)
HSL	hsl(64, 82%, 65%)
HSV	hsv(64, 62%, 94%)
CMYK	cmyk(4.6%, 0%, 61.9%, 6.3%)
CIE-LAB	lab(91.23, -22.23, 68.00)
CIE-LCH	lch(91.23, 71.54, 108.10°)
OKLab	oklab(91.67% -0.0666 0.1548)
OKLCH	oklch(91.67% 0.169 113.3)
XYZ	xyz(64.7514, 78.9836, 21.7299)
Luminance	0.7898 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E4EF5B #665BEF

analogous

#EFB05B #E4EF5B #9AEF5B

triadic

#E4EF5B #5BE4EF #EF5BE4

tetradic

#E4EF5B #5BEFB0 #665BEF #EF5B9A

square

#E4EF5B #5BEFB0 #665BEF #EF5B9A

split-complementary

#E4EF5B #5B9AEF #B05BEF

monochromatic

#B0BD12 #DBEA23 #E4EF5B #EDF493 #F6FACB

Accessibility & contrast

On white

1.25

#E4EF5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.80

#E4EF5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #E4EF5B

16.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E4EF5B	#FFFFFF	#000000	##000000
##E4EF5B	1.00	1.25	16.80	16.80
#FFFFFF	1.25	1.00	21.00	21.00
#000000	16.80	21.00	1.00	1.00
##000000	16.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE448

Deuteranopia (green-blind)

#FFE765

Tritanopia (blue-blind)

#F2E2D0

Achromatopsia (no color)

#E6E6E6

Design tokens & code

CSS

--color: #e4ef5b;
/* rgb */ color: rgb(228, 239, 91);
/* oklch */ color: oklch(91.7% 0.169 113.3);

Tailwind

colors: {
  custom: {
    50: '#f0f490',
    500: '#e4ef5b',
    950: '#000000',
  },
}

SCSS

$custom: #e4ef5b;
$custom-light: #f0f490;
$custom-dark: #000000;

JSON

{
  "hex": "#e4ef5b",
  "rgb": {
    "r": 228,
    "g": 239,
    "b": 91
  },
  "hsl": {
    "h": 64.459,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.9167,
    "c": 0.1685,
    "h": 113.3
  },
  "luminance": 0.78982
}

Semantic roles & 50–950 ramp

primary

#E4EF5B

secondary

#3D33BC

accent

#07DF17

background

#FFFFFC

surface

#FEFEF4

border

#D6D6CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #E4EF5B

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

Preview Lab → · Contrast checker → · Palette generator →