#CEF55B#CEF55B

#CEF55B is a very light, vivid yellow-green. Relative luminance 0.792; OKLCH L 91.4% C 0.183 H 122.2°. Best body text is #000000 at 16.84:1 contrast (WCAG AA passes).

Color values

HEX#CEF55B
RGBrgb(206, 245, 91)
HSLhsl(75, 89%, 66%)
HSVhsv(75, 63%, 96%)
CMYKcmyk(15.9%, 0%, 62.9%, 3.9%)
CIE-LABlab(91.32, -33.66, 67.64)
CIE-LCHlch(91.32, 75.55, 116.46°)
OKLaboklab(91.36% -0.0973 0.1545)
OKLCHoklch(91.36% 0.183 122.2)
XYZxyz(59.9950, 79.1818, 22.0185)
Luminance0.7918 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#CEF55B #825BF5
analogous
#F5CF5B #CEF55B #81F55B
triadic
#CEF55B #5BCEF5 #F55BCE
tetradic
#CEF55B #5BF5CF #825BF5 #F55B81
square
#CEF55B #5BF5CF #825BF5 #F55B81
split-complementary
#CEF55B #5B81F5 #CF5BF5
monochromatic
#99C90C #BDF121 #CEF55B #DFF995 #F0FCCE

Accessibility & contrast

On white

1.25
#CEF55B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

16.84
#CEF55B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CEF55B
16.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##CEF55B#FFFFFF#000000##000000
##CEF55B1.001.2516.8416.84
#FFFFFF1.251.0021.0021.00
#00000016.8421.001.001.00
##00000016.8421.001.001.00

Color blindness preview

Protanopia (red-blind)
#FFE747
Deuteranopia (green-blind)
#FEE666
Tritanopia (blue-blind)
#D8E9D5
Achromatopsia (no color)
#E6E6E6

Design tokens & code

CSS
--color: #cef55b;
/* rgb */ color: rgb(206, 245, 91);
/* oklch */ color: oklch(91.4% 0.183 122.2);
Tailwind
colors: {
  custom: {
    50: '#e0f890',
    500: '#cef55b',
    950: '#000000',
  },
}
SCSS
$custom: #cef55b;
$custom-light: #e0f890;
$custom-dark: #000000;
JSON
{
  "hex": "#cef55b",
  "rgb": {
    "r": 206,
    "g": 245,
    "b": 91
  },
  "hsl": {
    "h": 75.195,
    "s": 88.506,
    "l": 65.882
  },
  "oklch": {
    "l": 0.9136,
    "c": 0.18256,
    "h": 122.2
  },
  "luminance": 0.79182
}

Semantic roles & 50–950 ramp

primary
#CEF55B
secondary
#552EC6
accent
#00E53A
background
#FEFFFC
surface
#FCFFF4
border
#D5D7CE
text
#16170D
muted
#84857F

Preview Lab

Preview with #CEF55B

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

Preview Lab → · Contrast checker → · Palette generator →

#CEF55B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva