#42DA57#42DA57

#42DA57 is a light, highly saturated green. Relative luminance 0.520; OKLCH L 78.2% C 0.215 H 145.3°. Best body text is #000000 at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#42DA57
RGB	rgb(66, 218, 87)
HSL	hsl(128, 67%, 56%)
HSV	hsv(128, 70%, 85%)
CMYK	cmyk(69.7%, 0%, 60.1%, 14.5%)
CIE-LAB	lab(77.27, -65.29, 52.04)
CIE-LCH	lch(77.27, 83.49, 141.44°)
OKLab	oklab(78.24% -0.1763 0.1223)
OKLCH	oklch(78.24% 0.215 145.3)
XYZ	xyz(29.0365, 51.9860, 17.5190)
Luminance	0.5199 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42DA57 #DA42C5

analogous

#79DA42 #42DA57 #42DAA3

triadic

#42DA57 #5742DA #DA5742

tetradic

#42DA57 #4279DA #DA42C5 #DAA342

square

#42DA57 #4279DA #DA42C5 #DAA342

split-complementary

#42DA57 #A342DA #DA4279

monochromatic

#1A8729 #24BA39 #42DA57 #75E484 #A8EEB2

Accessibility & contrast

On white

1.84

#42DA57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.40

#42DA57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42DA57

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42DA57	#FFFFFF	#000000	##000000
##42DA57	1.00	1.84	11.40	11.40
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.40	21.00	1.00	1.00
##000000	11.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC649

Deuteranopia (green-blind)

#CCBA62

Tritanopia (blue-blind)

#00D5BE

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #42da57;
/* rgb */ color: rgb(66, 218, 87);
/* oklch */ color: oklch(78.2% 0.215 145.3);

Tailwind

colors: {
  custom: {
    50: '#8ae78b',
    500: '#42da57',
    950: '#000000',
  },
}

SCSS

$custom: #42da57;
$custom-light: #8ae78b;
$custom-dark: #000000;

JSON

{
  "hex": "#42da57",
  "rgb": {
    "r": 66,
    "g": 218,
    "b": 87
  },
  "hsl": {
    "h": 128.289,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.78238,
    "c": 0.21462,
    "h": 145.3
  },
  "luminance": 0.51989
}

Semantic roles & 50–950 ramp

primary

#42DA57

secondary

#8D3381

accent

#3ED2EA

background

#FCFEFC

surface

#F4FDF4

border

#CED5CE

text

#0D160C

muted

#7F847F

Preview Lab

Preview with #42DA57

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

Preview Lab → · Contrast checker → · Palette generator →