#CEF15B#CEF15B

#CEF15B is a very light, vivid yellow-green. Relative luminance 0.768; OKLCH L 90.5% C 0.178 H 121.2°. Best body text is #000000 at 16.36:1 contrast (WCAG AA passes).

Color values

HEX	#CEF15B
RGB	rgb(206, 241, 91)
HSL	hsl(74, 84%, 65%)
HSV	hsv(74, 62%, 95%)
CMYK	cmyk(14.5%, 0%, 62.2%, 5.5%)
CIE-LAB	lab(90.22, -31.83, 66.47)
CIE-LCH	lch(90.22, 73.69, 115.59°)
OKLab	oklab(90.48% -0.0922 0.152)
OKLCH	oklch(90.48% 0.178 121.2)
XYZ	xyz(58.7979, 76.7878, 21.6194)
Luminance	0.7679 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CEF15B #7E5BF1

analogous

#F1C95B #CEF15B #83F15B

triadic

#CEF15B #5BCEF1 #F15BCE

tetradic

#CEF15B #5BF1C9 #7E5BF1 #F15B83

square

#CEF15B #5BF1C9 #7E5BF1 #F15B83

split-complementary

#CEF15B #5B83F1 #C95BF1

monochromatic

#98C110 #BDEC23 #CEF15B #DFF693 #F0FBCC

Accessibility & contrast

On white

1.28

#CEF15B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.36

#CEF15B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CEF15B

16.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CEF15B	#FFFFFF	#000000	##000000
##CEF15B	1.00	1.28	16.36	16.36
#FFFFFF	1.28	1.00	21.00	21.00
#000000	16.36	21.00	1.00	1.00
##000000	16.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE448

Deuteranopia (green-blind)

#FAE366

Tritanopia (blue-blind)

#D8E5D2

Achromatopsia (no color)

#E3E3E3

Design tokens & code

CSS

--color: #cef15b;
/* rgb */ color: rgb(206, 241, 91);
/* oklch */ color: oklch(90.5% 0.178 121.2);

Tailwind

colors: {
  custom: {
    50: '#e0f590',
    500: '#cef15b',
    950: '#000000',
  },
}

SCSS

$custom: #cef15b;
$custom-light: #e0f590;
$custom-dark: #000000;

JSON

{
  "hex": "#cef15b",
  "rgb": {
    "r": 206,
    "g": 241,
    "b": 91
  },
  "hsl": {
    "h": 74,
    "s": 84.27,
    "l": 65.098
  },
  "oklch": {
    "l": 0.9048,
    "c": 0.17776,
    "h": 121.2
  },
  "luminance": 0.76788
}

Semantic roles & 50–950 ramp

primary

#CEF15B

secondary

#5231BF

accent

#05E138

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#16170D

muted

#84857F

Preview Lab

Preview with #CEF15B

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

Preview Lab → · Contrast checker → · Palette generator →