#42D551#42D551

#42D551 is a light, highly saturated green. Relative luminance 0.493; OKLCH L 76.9% C 0.213 H 144.6°. Best body text is #000000 at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#42D551
RGB	rgb(66, 213, 81)
HSL	hsl(126, 64%, 55%)
HSV	hsv(126, 69%, 84%)
CMYK	cmyk(69%, 0%, 62%, 16.5%)
CIE-LAB	lab(75.66, -64.29, 52.81)
CIE-LCH	lch(75.66, 83.20, 140.60°)
OKLab	oklab(76.89% -0.1739 0.1235)
OKLCH	oklch(76.89% 0.213 144.6)
XYZ	xyz(27.5244, 49.3378, 15.8556)
Luminance	0.4934 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D551 #D542C6

analogous

#7DD542 #42D551 #42D59A

triadic

#42D551 #5142D5 #D55142

tetradic

#42D551 #427DD5 #D542C6 #D59A42

square

#42D551 #427DD5 #D542C6 #D59A42

split-complementary

#42D551 #9A42D5 #D5427D

monochromatic

#1C8027 #28B236 #42D551 #74E07F #A6EBAD

Accessibility & contrast

On white

1.93

#42D551 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.87

#42D551 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D551

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D551	#FFFFFF	#000000	##000000
##42D551	1.00	1.93	10.87	10.87
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.87	21.00	1.00	1.00
##000000	10.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9C242

Deuteranopia (green-blind)

#C7B65C

Tritanopia (blue-blind)

#09CFB9

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #42d551;
/* rgb */ color: rgb(66, 213, 81);
/* oklch */ color: oklch(76.9% 0.213 144.6);

Tailwind

colors: {
  custom: {
    50: '#8ae387',
    500: '#42d551',
    950: '#000000',
  },
}

SCSS

$custom: #42d551;
$custom-light: #8ae387;
$custom-dark: #000000;

JSON

{
  "hex": "#42d551",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 81
  },
  "hsl": {
    "h": 126.122,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.76885,
    "c": 0.21326,
    "h": 144.6
  },
  "luminance": 0.49341
}

Semantic roles & 50–950 ramp

primary

#42D551

secondary

#D89AD2

accent

#41D6E7

background

#F9FEF8

surface

#F1FCF0

border

#CBD5CB

text

#0D160B

muted

#7E847C

Preview Lab

Preview with #42D551

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

Preview Lab → · Contrast checker → · Palette generator →