#CBFF04#CBFF04

#CBFF04 is a very light, highly saturated yellow-green. Relative luminance 0.842; OKLCH L 93.0% C 0.229 H 123.3°. Best body text is #000000 at 17.85:1 contrast (WCAG AA passes).

Color values

HEX	#CBFF04
RGB	rgb(203, 255, 4)
HSL	hsl(72, 100%, 51%)
HSV	hsv(72, 98%, 100%)
CMYK	cmyk(20.4%, 0%, 98.4%, 0%)
CIE-LAB	lab(93.55, -42.29, 89.92)
CIE-LCH	lch(93.55, 99.37, 115.19°)
OKLab	oklab(93.01% -0.1256 0.191)
OKLCH	oklch(93.01% 0.229 123.3)
XYZ	xyz(60.4115, 84.2248, 13.1892)
Luminance	0.8423 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CBFF04 #3804FF

analogous

#FFB504 #CBFF04 #4EFF04

triadic

#CBFF04 #04CBFF #FF04CB

tetradic

#CBFF04 #04FFB5 #3804FF #FF044E

square

#CBFF04 #04FFB5 #3804FF #FF044E

split-complementary

#CBFF04 #044EFF #B504FF

monochromatic

#6C8900 #9DC600 #CBFF04 #D8FF41 #E4FF7E

Accessibility & contrast

On white

1.18

#CBFF04 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.85

#CBFF04 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CBFF04

17.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CBFF04	#FFFFFF	#000000	##000000
##CBFF04	1.00	1.18	17.85	17.85
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.85	21.00	1.00	1.00
##000000	17.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE00

Deuteranopia (green-blind)

#FFEC36

Tritanopia (blue-blind)

#D6F2D9

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #cbff04;
/* rgb */ color: rgb(203, 255, 4);
/* oklch */ color: oklch(93.0% 0.229 123.3);

Tailwind

colors: {
  custom: {
    50: '#e0ff72',
    500: '#cbff04',
    950: '#000000',
  },
}

SCSS

$custom: #cbff04;
$custom-light: #e0ff72;
$custom-dark: #000000;

JSON

{
  "hex": "#cbff04",
  "rgb": {
    "r": 203,
    "g": 255,
    "b": 4
  },
  "hsl": {
    "h": 72.43,
    "s": 100,
    "l": 50.784
  },
  "oklch": {
    "l": 0.9301,
    "c": 0.22861,
    "h": 123.3
  },
  "luminance": 0.84225
}

Semantic roles & 50–950 ramp

primary

#CBFF04

secondary

#31198E

accent

#29FF55

background

#FFFFFB

surface

#FEFFF1

border

#D6D7CB

text

#16180A

muted

#85867D

Preview Lab

Preview with #CBFF04

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

Preview Lab → · Contrast checker → · Palette generator →