#C5E55B#C5E55B

#C5E55B is a very light, vivid yellow-green. Relative luminance 0.687; OKLCH L 87.2% C 0.167 H 121.0°. Best body text is #000000 at 14.73:1 contrast (WCAG AA passes).

Color values

HEX	#C5E55B
RGB	rgb(197, 229, 91)
HSL	hsl(74, 73%, 63%)
HSV	hsv(74, 60%, 90%)
CMYK	cmyk(14%, 0%, 60.3%, 10.2%)
CIE-LAB	lab(86.34, -29.74, 62.08)
CIE-LCH	lch(86.34, 68.83, 115.60°)
OKLab	oklab(87.2% -0.0858 0.1429)
OKLCH	oklch(87.2% 0.167 121)
XYZ	xyz(52.9342, 68.6643, 20.3604)
Luminance	0.6866 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5E55B #7B5BE5

analogous

#E5C05B #C5E55B #80E55B

triadic

#C5E55B #5BC5E5 #E55BC5

tetradic

#C5E55B #5BE5C0 #7B5BE5 #E55B80

square

#C5E55B #5BE5C0 #7B5BE5 #E55B80

split-complementary

#C5E55B #5B80E5 #C05BE5

monochromatic

#89AB1B #B2DD26 #C5E55B #D8ED90 #EAF6C5

Accessibility & contrast

On white

1.43

#C5E55B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.73

#C5E55B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C5E55B

14.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5E55B	#FFFFFF	#000000	##000000
##C5E55B	1.00	1.43	14.73	14.73
#FFFFFF	1.43	1.00	21.00	21.00
#000000	14.73	21.00	1.00	1.00
##000000	14.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F2D94B

Deuteranopia (green-blind)

#EED864

Tritanopia (blue-blind)

#CFDAC8

Achromatopsia (no color)

#D8D8D8

Design tokens & code

CSS

--color: #c5e55b;
/* rgb */ color: rgb(197, 229, 91);
/* oklch */ color: oklch(87.2% 0.167 121.0);

Tailwind

colors: {
  custom: {
    50: '#d9ed8f',
    500: '#c5e55b',
    950: '#000000',
  },
}

SCSS

$custom: #c5e55b;
$custom-light: #d9ed8f;
$custom-dark: #000000;

JSON

{
  "hex": "#c5e55b",
  "rgb": {
    "r": 197,
    "g": 229,
    "b": 91
  },
  "hsl": {
    "h": 73.913,
    "s": 72.632,
    "l": 62.745
  },
  "oklch": {
    "l": 0.87199,
    "c": 0.16667,
    "h": 121
  },
  "luminance": 0.68664
}

Semantic roles & 50–950 ramp

primary

#C5E55B

secondary

#5338AC

accent

#11D53E

background

#FEFEFC

surface

#FCFDF4

border

#D5D5CE

text

#15160D

muted

#84847F

Preview Lab

Preview with #C5E55B

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

Preview Lab → · Contrast checker → · Palette generator →