#42D539#42D539

#42D539 is a light, highly saturated green. Relative luminance 0.490; OKLCH L 76.7% C 0.229 H 142.2°. Best body text is #000000 at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#42D539
RGB	rgb(66, 213, 57)
HSL	hsl(117, 65%, 53%)
HSV	hsv(117, 73%, 84%)
CMYK	cmyk(69%, 0%, 73.2%, 16.5%)
CIE-LAB	lab(75.48, -66.51, 62.03)
CIE-LCH	lch(75.48, 90.95, 137.00°)
OKLab	oklab(76.67% -0.181 0.1402)
OKLCH	oklch(76.67% 0.229 142.2)
XYZ	xyz(26.7780, 49.0393, 11.9244)
Luminance	0.4904 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D539 #CC39D5

analogous

#90D539 #42D539 #39D57E

triadic

#42D539 #3942D5 #D53942

tetradic

#42D539 #3990D5 #CC39D5 #D57E39

square

#42D539 #3990D5 #CC39D5 #D57E39

split-complementary

#42D539 #7E39D5 #D53990

monochromatic

#1F7A1A #2CAC25 #42D539 #72E06B #A2EA9E

Accessibility & contrast

On white

1.94

#42D539 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.81

#42D539 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D539

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D539	#FFFFFF	#000000	##000000
##42D539	1.00	1.94	10.81	10.81
#FFFFFF	1.94	1.00	21.00	21.00
#000000	10.81	21.00	1.00	1.00
##000000	10.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DAC11B

Deuteranopia (green-blind)

#C9B54A

Tritanopia (blue-blind)

#19CFB7

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #42d539;
/* rgb */ color: rgb(66, 213, 57);
/* oklch */ color: oklch(76.7% 0.229 142.2);

Tailwind

colors: {
  custom: {
    50: '#8be379',
    500: '#42d539',
    950: '#000000',
  },
}

SCSS

$custom: #42d539;
$custom-light: #8be379;
$custom-dark: #000000;

JSON

{
  "hex": "#42d539",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 57
  },
  "hsl": {
    "h": 116.538,
    "s": 65,
    "l": 52.941
  },
  "oklch": {
    "l": 0.76672,
    "c": 0.22894,
    "h": 142.2
  },
  "luminance": 0.49042
}

Semantic roles & 50–950 ramp

primary

#42D539

secondary

#D393D7

accent

#40E8DE

background

#F9FEF7

surface

#F2FCEE

border

#CCD5C9

text

#0D160A

muted

#7E847C

Preview Lab

Preview with #42D539

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

Preview Lab → · Contrast checker → · Palette generator →