#C5F558#C5F558

#C5F558 is a very light, vivid yellow-green. Relative luminance 0.779; OKLCH L 90.7% C 0.188 H 124.6°. Best body text is #000000 at 16.58:1 contrast (WCAG AA passes).

Color values

HEX	#C5F558
RGB	rgb(197, 245, 88)
HSL	hsl(78, 89%, 65%)
HSV	hsv(78, 64%, 96%)
CMYK	cmyk(19.6%, 0%, 64.1%, 3.9%)
CIE-LAB	lab(90.72, -37.29, 68.02)
CIE-LCH	lch(90.72, 77.57, 118.73°)
OKLab	oklab(90.73% -0.1071 0.1551)
OKLCH	oklch(90.73% 0.188 124.6)
XYZ	xyz(57.4402, 77.8792, 21.2367)
Luminance	0.7788 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5F558 #8858F5

analogous

#F5D758 #C5F558 #76F558

triadic

#C5F558 #58C5F5 #F558C5

tetradic

#C5F558 #58F5D7 #8858F5 #F55876

square

#C5F558 #58F5D7 #8858F5 #F55876

split-complementary

#C5F558 #5876F5 #D758F5

monochromatic

#8EC70C #B1F21E #C5F558 #D9F892 #EDFCCB

Accessibility & contrast

On white

1.27

#C5F558 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.58

#C5F558 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C5F558

16.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5F558	#FFFFFF	#000000	##000000
##C5F558	1.00	1.27	16.58	16.58
#FFFFFF	1.27	1.00	21.00	21.00
#000000	16.58	21.00	1.00	1.00
##000000	16.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE643

Deuteranopia (green-blind)

#FBE464

Tritanopia (blue-blind)

#CDEAD5

Achromatopsia (no color)

#E4E4E4

Design tokens & code

CSS

--color: #c5f558;
/* rgb */ color: rgb(197, 245, 88);
/* oklch */ color: oklch(90.7% 0.188 124.6);

Tailwind

colors: {
  custom: {
    50: '#daf88e',
    500: '#c5f558',
    950: '#000000',
  },
}

SCSS

$custom: #c5f558;
$custom-light: #daf88e;
$custom-dark: #000000;

JSON

{
  "hex": "#c5f558",
  "rgb": {
    "r": 197,
    "g": 245,
    "b": 88
  },
  "hsl": {
    "h": 78.344,
    "s": 88.701,
    "l": 65.294
  },
  "oklch": {
    "l": 0.90729,
    "c": 0.18845,
    "h": 124.6
  },
  "luminance": 0.7788
}

Semantic roles & 50–950 ramp

primary

#C5F558

secondary

#5C2EC3

accent

#00E546

background

#FEFFFC

surface

#FCFFF4

border

#D5D7CE

text

#15170D

muted

#84857F

Preview Lab

Preview with #C5F558

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

Preview Lab → · Contrast checker → · Palette generator →