#C5EC66#C5EC66

#C5EC66 is a very light, vivid yellow-green. Relative luminance 0.728; OKLCH L 88.9% C 0.166 H 123.4°. Best body text is #000000 at 15.56:1 contrast (WCAG AA passes).

Color values

HEX	#C5EC66
RGB	rgb(197, 236, 102)
HSL	hsl(77, 78%, 66%)
HSV	hsv(77, 57%, 93%)
CMYK	cmyk(16.5%, 0%, 56.8%, 7.5%)
CIE-LAB	lab(88.36, -32.12, 59.62)
CIE-LCH	lch(88.36, 67.72, 118.31°)
OKLab	oklab(88.86% -0.0915 0.1389)
OKLCH	oklch(88.86% 0.166 123.4)
XYZ	xyz(55.4200, 72.8203, 23.7038)
Luminance	0.7282 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5EC66 #8D66EC

analogous

#ECD066 #C5EC66 #82EC66

triadic

#C5EC66 #66C5EC #EC66C5

tetradic

#C5EC66 #66ECD0 #8D66EC #EC6682

square

#C5EC66 #66ECD0 #8D66EC #EC6682

split-complementary

#C5EC66 #6682EC #D066EC

monochromatic

#8FC018 #B0E530 #C5EC66 #DAF39C #EEFAD3

Accessibility & contrast

On white

1.35

#C5EC66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.56

#C5EC66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C5EC66

15.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5EC66	#FFFFFF	#000000	##000000
##C5EC66	1.00	1.35	15.56	15.56
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.56	21.00	1.00	1.00
##000000	15.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F8DF58

Deuteranopia (green-blind)

#F3DE6F

Tritanopia (blue-blind)

#CDE1CF

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #c5ec66;
/* rgb */ color: rgb(197, 236, 102);
/* oklch */ color: oklch(88.9% 0.166 123.4);

Tailwind

colors: {
  custom: {
    50: '#d9f296',
    500: '#c5ec66',
    950: '#000000',
  },
}

SCSS

$custom: #c5ec66;
$custom-light: #d9f296;
$custom-dark: #000000;

JSON

{
  "hex": "#c5ec66",
  "rgb": {
    "r": 197,
    "g": 236,
    "b": 102
  },
  "hsl": {
    "h": 77.463,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.88861,
    "c": 0.16629,
    "h": 123.4
  },
  "luminance": 0.72821
}

Semantic roles & 50–950 ramp

primary

#C5EC66

secondary

#5F38BE

accent

#0BDA48

background

#FEFFFC

surface

#FCFEF5

border

#D5D6CF

text

#15170E

muted

#84857F

Preview Lab

Preview with #C5EC66

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

Preview Lab → · Contrast checker → · Palette generator →