#C5F15B#C5F15B

#C5F15B is a very light, vivid yellow-green. Relative luminance 0.755; OKLCH L 89.9% C 0.181 H 123.9°. Best body text is #000000 at 16.11:1 contrast (WCAG AA passes).

Color values

HEX	#C5F15B
RGB	rgb(197, 241, 91)
HSL	hsl(78, 84%, 65%)
HSV	hsv(78, 62%, 95%)
CMYK	cmyk(18.3%, 0%, 62.2%, 5.5%)
CIE-LAB	lab(89.64, -35.27, 65.67)
CIE-LCH	lch(89.64, 74.54, 118.24°)
OKLab	oklab(89.86% -0.1012 0.1505)
OKLCH	oklch(89.86% 0.181 123.9)
XYZ	xyz(56.3700, 75.5358, 21.5056)
Luminance	0.7554 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5F15B #875BF1

analogous

#F1D25B #C5F15B #7AF15B

triadic

#C5F15B #5BC5F1 #F15BC5

tetradic

#C5F15B #5BF1D2 #875BF1 #F15B7A

square

#C5F15B #5BF1D2 #875BF1 #F15B7A

split-complementary

#C5F15B #5B7AF1 #D25BF1

monochromatic

#8DC110 #B1EC23 #C5F15B #D9F693 #EDFBCC

Accessibility & contrast

On white

1.30

#C5F15B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.11

#C5F15B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C5F15B

16.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5F15B	#FFFFFF	#000000	##000000
##C5F15B	1.00	1.30	16.11	16.11
#FFFFFF	1.30	1.00	21.00	21.00
#000000	16.11	21.00	1.00	1.00
##000000	16.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FEE348

Deuteranopia (green-blind)

#F8E166

Tritanopia (blue-blind)

#CEE6D2

Achromatopsia (no color)

#E1E1E1

Design tokens & code

CSS

--color: #c5f15b;
/* rgb */ color: rgb(197, 241, 91);
/* oklch */ color: oklch(89.9% 0.181 123.9);

Tailwind

colors: {
  custom: {
    50: '#daf590',
    500: '#c5f15b',
    950: '#000000',
  },
}

SCSS

$custom: #c5f15b;
$custom-light: #daf590;
$custom-dark: #000000;

JSON

{
  "hex": "#c5f15b",
  "rgb": {
    "r": 197,
    "g": 241,
    "b": 91
  },
  "hsl": {
    "h": 77.6,
    "s": 84.27,
    "l": 65.098
  },
  "oklch": {
    "l": 0.89864,
    "c": 0.18137,
    "h": 123.9
  },
  "luminance": 0.75536
}

Semantic roles & 50–950 ramp

primary

#C5F15B

secondary

#5B31BF

accent

#05E145

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15170D

muted

#84857F

Preview Lab

Preview with #C5F15B

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

Preview Lab → · Contrast checker → · Palette generator →