#CCFF5B#CCFF5B

#CCFF5B is a very light, vivid yellow-green. Relative luminance 0.851; OKLCH L 93.4% C 0.195 H 124.9°. Best body text is #000000 at 18.02:1 contrast (WCAG AA passes).

Color values

HEX	#CCFF5B
RGB	rgb(204, 255, 91)
HSL	hsl(79, 100%, 68%)
HSV	hsv(79, 64%, 100%)
CMYK	cmyk(20%, 0%, 64.3%, 0%)
CIE-LAB	lab(93.93, -38.93, 70.38)
CIE-LCH	lch(93.93, 80.43, 118.95°)
OKLab	oklab(93.44% -0.1118 0.1603)
OKLCH	oklch(93.44% 0.195 124.9)
XYZ	xyz(62.5505, 85.1121, 23.0284)
Luminance	0.8511 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CCFF5B #8E5BFF

analogous

#FFE05B #CCFF5B #7AFF5B

triadic

#CCFF5B #5BCCFF #FF5BCC

tetradic

#CCFF5B #5BFFE0 #8E5BFF #FF5B7A

square

#CCFF5B #5BFFE0 #8E5BFF #FF5B7A

split-complementary

#CCFF5B #5B7AFF #E05BFF

monochromatic

#9AE000 #B9FF1E #CCFF5B #DFFF98 #F2FFD5

Accessibility & contrast

On white

1.17

#CCFF5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.02

#CCFF5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CCFF5B

18.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CCFF5B	#FFFFFF	#000000	##000000
##CCFF5B	1.00	1.17	18.02	18.02
#FFFFFF	1.17	1.00	21.00	21.00
#000000	18.02	21.00	1.00	1.00
##000000	18.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF45

Deuteranopia (green-blind)

#FFED68

Tritanopia (blue-blind)

#D5F3DD

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ccff5b;
/* rgb */ color: rgb(204, 255, 91);
/* oklch */ color: oklch(93.4% 0.195 124.9);

Tailwind

colors: {
  custom: {
    50: '#dfff91',
    500: '#ccff5b',
    950: '#000000',
  },
}

SCSS

$custom: #ccff5b;
$custom-light: #dfff91;
$custom-dark: #000000;

JSON

{
  "hex": "#ccff5b",
  "rgb": {
    "r": 204,
    "g": 255,
    "b": 91
  },
  "hsl": {
    "h": 78.659,
    "s": 100,
    "l": 67.843
  },
  "oklch": {
    "l": 0.93438,
    "c": 0.1954,
    "h": 124.9
  },
  "luminance": 0.85113
}

Semantic roles & 50–950 ramp

primary

#CCFF5B

secondary

#5D26D8

accent

#00E647

background

#FEFFFC

surface

#FCFFF4

border

#D5D7CE

text

#16180D

muted

#84867F

Preview Lab

Preview with #CCFF5B

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

Preview Lab → · Contrast checker → · Palette generator →