#CEF45B#CEF45B

#CEF45B is a very light, vivid yellow-green. Relative luminance 0.786; OKLCH L 91.1% C 0.181 H 122.0°. Best body text is #000000 at 16.72:1 contrast (WCAG AA passes).

Color values

HEX	#CEF45B
RGB	rgb(206, 244, 91)
HSL	hsl(75, 87%, 66%)
HSV	hsv(75, 63%, 96%)
CMYK	cmyk(15.6%, 0%, 62.7%, 4.3%)
CIE-LAB	lab(91.04, -33.21, 67.34)
CIE-LCH	lch(91.04, 75.09, 116.25°)
OKLab	oklab(91.14% -0.096 0.1538)
OKLCH	oklch(91.14% 0.181 122)
XYZ	xyz(59.6933, 78.5784, 21.9179)
Luminance	0.7858 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CEF45B #815BF4

analogous

#F4CD5B #CEF45B #81F45B

triadic

#CEF45B #5BCEF4 #F45BCE

tetradic

#CEF45B #5BF4CD #815BF4 #F45B81

square

#CEF45B #5BF4CD #815BF4 #F45B81

split-complementary

#CEF45B #5B81F4 #CD5BF4

monochromatic

#99C70D #BDF022 #CEF45B #DFF894 #F0FCCE

Accessibility & contrast

On white

1.26

#CEF45B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.72

#CEF45B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CEF45B

16.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CEF45B	#FFFFFF	#000000	##000000
##CEF45B	1.00	1.26	16.72	16.72
#FFFFFF	1.26	1.00	21.00	21.00
#000000	16.72	21.00	1.00	1.00
##000000	16.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE648

Deuteranopia (green-blind)

#FDE566

Tritanopia (blue-blind)

#D8E8D4

Achromatopsia (no color)

#E5E5E5

Design tokens & code

CSS

--color: #cef45b;
/* rgb */ color: rgb(206, 244, 91);
/* oklch */ color: oklch(91.1% 0.181 122.0);

Tailwind

colors: {
  custom: {
    50: '#e0f790',
    500: '#cef45b',
    950: '#000000',
  },
}

SCSS

$custom: #cef45b;
$custom-light: #e0f790;
$custom-dark: #000000;

JSON

{
  "hex": "#cef45b",
  "rgb": {
    "r": 206,
    "g": 244,
    "b": 91
  },
  "hsl": {
    "h": 74.902,
    "s": 87.429,
    "l": 65.686
  },
  "oklch": {
    "l": 0.9114,
    "c": 0.18136,
    "h": 122
  },
  "luminance": 0.78579
}

Semantic roles & 50–950 ramp

primary

#CEF45B

secondary

#542FC4

accent

#02E43A

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#16170D

muted

#84857F

Preview Lab

Preview with #CEF45B

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

Preview Lab → · Contrast checker → · Palette generator →