#C5EF57#C5EF57

#C5EF57 is a very light, vivid yellow-green. Relative luminance 0.743; OKLCH L 89.4% C 0.182 H 123.3°. Best body text is #000000 at 15.86:1 contrast (WCAG AA passes).

Color values

HEX	#C5EF57
RGB	rgb(197, 239, 87)
HSL	hsl(77, 83%, 64%)
HSV	hsv(77, 64%, 94%)
CMYK	cmyk(17.6%, 0%, 63.6%, 6.3%)
CIE-LAB	lab(89.06, -34.65, 66.65)
CIE-LCH	lch(89.06, 75.12, 117.47°)
OKLab	oklab(89.38% -0.0999 0.152)
OKLCH	oklch(89.38% 0.182 123.3)
XYZ	xyz(55.6132, 74.2911, 20.4247)
Luminance	0.7429 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5EF57 #8157EF

analogous

#EFCD57 #C5EF57 #79EF57

triadic

#C5EF57 #57C5EF #EF57C5

tetradic

#C5EF57 #57EFCD #8157EF #EF5779

square

#C5EF57 #57EFCD #8157EF #EF5779

split-complementary

#C5EF57 #5779EF #CD57EF

monochromatic

#8BBA12 #B2EA1F #C5EF57 #D8F48F #ECFAC7

Accessibility & contrast

On white

1.32

#C5EF57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.86

#C5EF57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C5EF57

15.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5EF57	#FFFFFF	#000000	##000000
##C5EF57	1.00	1.32	15.86	15.86
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.86	21.00	1.00	1.00
##000000	15.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FCE143

Deuteranopia (green-blind)

#F7DF62

Tritanopia (blue-blind)

#CEE4D0

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #c5ef57;
/* rgb */ color: rgb(197, 239, 87);
/* oklch */ color: oklch(89.4% 0.182 123.3);

Tailwind

colors: {
  custom: {
    50: '#daf48d',
    500: '#c5ef57',
    950: '#000000',
  },
}

SCSS

$custom: #c5ef57;
$custom-light: #daf48d;
$custom-dark: #000000;

JSON

{
  "hex": "#c5ef57",
  "rgb": {
    "r": 197,
    "g": 239,
    "b": 87
  },
  "hsl": {
    "h": 76.579,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.89383,
    "c": 0.18189,
    "h": 123.3
  },
  "luminance": 0.74291
}

Semantic roles & 50–950 ramp

primary

#C5EF57

secondary

#5731B9

accent

#06DF42

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15170D

muted

#84857F

Preview Lab

Preview with #C5EF57

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

Preview Lab → · Contrast checker → · Palette generator →