#42DA51#42DA51

#42DA51 is a light, highly saturated green. Relative luminance 0.519; OKLCH L 78.2% C 0.219 H 144.5°. Best body text is #000000 at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#42DA51
RGB	rgb(66, 218, 81)
HSL	hsl(126, 67%, 56%)
HSV	hsv(126, 70%, 85%)
CMYK	cmyk(69.7%, 0%, 62.8%, 14.5%)
CIE-LAB	lab(77.22, -65.96, 54.56)
CIE-LCH	lch(77.22, 85.60, 140.40°)
OKLab	oklab(78.17% -0.1784 0.1272)
OKLCH	oklch(78.17% 0.219 144.5)
XYZ	xyz(28.8015, 51.8920, 16.2813)
Luminance	0.5190 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42DA51 #DA42CB

analogous

#7FDA42 #42DA51 #42DA9D

triadic

#42DA51 #5142DA #DA5142

tetradic

#42DA51 #427FDA #DA42CB #DA9D42

square

#42DA51 #427FDA #DA42CB #DA9D42

split-complementary

#42DA51 #9D42DA #DA427F

monochromatic

#1A8725 #24BA33 #42DA51 #75E480 #A8EEAF

Accessibility & contrast

On white

1.85

#42DA51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.38

#42DA51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42DA51

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42DA51	#FFFFFF	#000000	##000000
##42DA51	1.00	1.85	11.38	11.38
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.38	21.00	1.00	1.00
##000000	11.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC641

Deuteranopia (green-blind)

#CCBA5D

Tritanopia (blue-blind)

#00D4BD

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #42da51;
/* rgb */ color: rgb(66, 218, 81);
/* oklch */ color: oklch(78.2% 0.219 144.5);

Tailwind

colors: {
  custom: {
    50: '#8be787',
    500: '#42da51',
    950: '#000000',
  },
}

SCSS

$custom: #42da51;
$custom-light: #8be787;
$custom-dark: #000000;

JSON

{
  "hex": "#42da51",
  "rgb": {
    "r": 66,
    "g": 218,
    "b": 81
  },
  "hsl": {
    "h": 125.921,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.78173,
    "c": 0.21909,
    "h": 144.5
  },
  "luminance": 0.51895
}

Semantic roles & 50–950 ramp

primary

#42DA51

secondary

#8D3384

accent

#3ED9EA

background

#FCFEFC

surface

#F4FDF3

border

#CED5CD

text

#0D160C

muted

#7F847F

Preview Lab

Preview with #42DA51

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

Preview Lab → · Contrast checker → · Palette generator →