#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
RGBrgb(228, 239, 91)
HSLhsl(64, 82%, 65%)
HSVhsv(64, 62%, 94%)
CMYKcmyk(4.6%, 0%, 61.9%, 6.3%)
CIE-LABlab(91.23, -22.23, 68.00)
CIE-LCHlch(91.23, 71.54, 108.10°)
OKLaboklab(91.67% -0.0666 0.1548)
OKLCHoklch(91.67% 0.169 113.3)
XYZxyz(64.7514, 78.9836, 21.7299)
Luminance0.7898 (WCAG relative)
Temperaturewarm
Familyyellow

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
##E4EF5B1.001.2516.8016.80
#FFFFFF1.251.0021.0021.00
#00000016.8021.001.001.00
##00000016.8021.001.001.00

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 →

#E4EF5B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva