#CEFF04#CEFF04

#CEFF04 is a very light, highly saturated yellow-green. Relative luminance 0.847; OKLCH L 93.2% C 0.227 H 122.7°. Best body text is #000000 at 17.93:1 contrast (WCAG AA passes).

Color values

HEX	#CEFF04
RGB	rgb(206, 255, 4)
HSL	hsl(72, 100%, 51%)
HSV	hsv(72, 98%, 100%)
CMYK	cmyk(19.2%, 0%, 98.4%, 0%)
CIE-LAB	lab(93.73, -41.14, 90.14)
CIE-LCH	lch(93.73, 99.08, 114.53°)
OKLab	oklab(93.21% -0.1226 0.1914)
OKLCH	oklch(93.21% 0.227 122.7)
XYZ	xyz(61.2366, 84.6503, 13.2279)
Luminance	0.8465 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CEFF04 #3504FF

analogous

#FFB204 #CEFF04 #50FF04

triadic

#CEFF04 #04CEFF #FF04CE

tetradic

#CEFF04 #04FFB2 #3504FF #FF0450

square

#CEFF04 #04FFB2 #3504FF #FF0450

split-complementary

#CEFF04 #0450FF #B204FF

monochromatic

#6E8900 #9FC600 #CEFF04 #DAFF41 #E6FF7E

Accessibility & contrast

On white

1.17

#CEFF04 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.93

#CEFF04 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CEFF04

17.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CEFF04	#FFFFFF	#000000	##000000
##CEFF04	1.00	1.17	17.93	17.93
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.93	21.00	1.00	1.00
##000000	17.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE00

Deuteranopia (green-blind)

#FFED36

Tritanopia (blue-blind)

#DAF1D9

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ceff04;
/* rgb */ color: rgb(206, 255, 4);
/* oklch */ color: oklch(93.2% 0.227 122.7);

Tailwind

colors: {
  custom: {
    50: '#e2ff72',
    500: '#ceff04',
    950: '#000000',
  },
}

SCSS

$custom: #ceff04;
$custom-light: #e2ff72;
$custom-dark: #000000;

JSON

{
  "hex": "#ceff04",
  "rgb": {
    "r": 206,
    "g": 255,
    "b": 4
  },
  "hsl": {
    "h": 71.713,
    "s": 100,
    "l": 50.784
  },
  "oklch": {
    "l": 0.93206,
    "c": 0.2273,
    "h": 122.7
  },
  "luminance": 0.84651
}

Semantic roles & 50–950 ramp

primary

#CEFF04

secondary

#30198E

accent

#29FF53

background

#FFFFFB

surface

#FEFFF1

border

#D6D7CB

text

#16180A

muted

#85867D

Preview Lab

Preview with #CEFF04

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

Preview Lab → · Contrast checker → · Palette generator →