#42C583#42C583

#42C583 is a light, vivid green. Relative luminance 0.427; OKLCH L 73.6% C 0.149 H 157.2°. Best body text is #000000 at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#42C583
RGB	rgb(66, 197, 131)
HSL	hsl(150, 53%, 52%)
HSV	hsv(150, 66%, 77%)
CMYK	cmyk(66.5%, 0%, 33.5%, 22.7%)
CIE-LAB	lab(71.37, -50.74, 22.96)
CIE-LCH	lch(71.37, 55.69, 155.66°)
OKLab	oklab(73.57% -0.1378 0.0579)
OKLCH	oklch(73.57% 0.149 157.2)
XYZ	xyz(26.3073, 42.7266, 28.3290)
Luminance	0.4273 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C583 #C54284

analogous

#43C542 #42C583 #42C5C4

triadic

#42C583 #8342C5 #C58342

tetradic

#42C583 #4243C5 #C54284 #C5C442

square

#42C583 #4243C5 #C54284 #C5C442

split-complementary

#42C583 #C442C5 #C54243

monochromatic

#216C46 #2F9A64 #42C583 #71D3A2 #A0E2C0

Accessibility & contrast

On white

2.20

#42C583 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.55

#42C583 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C583

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C583	#FFFFFF	#000000	##000000
##42C583	1.00	2.20	9.55	9.55
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.55	21.00	1.00	1.00
##000000	9.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4B67F

Deuteranopia (green-blind)

#B3AA87

Tritanopia (blue-blind)

#00C4B4

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #42c583;
/* rgb */ color: rgb(66, 197, 131);
/* oklch */ color: oklch(73.6% 0.149 157.2);

Tailwind

colors: {
  custom: {
    50: '#85d7a7',
    500: '#42c583',
    950: '#000000',
  },
}

SCSS

$custom: #42c583;
$custom-light: #85d7a7;
$custom-dark: #000000;

JSON

{
  "hex": "#42c583",
  "rgb": {
    "r": 66,
    "g": 197,
    "b": 131
  },
  "hsl": {
    "h": 149.771,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.73565,
    "c": 0.14943,
    "h": 157.2
  },
  "luminance": 0.42729
}

Semantic roles & 50–950 ramp

primary

#42C583

secondary

#CE95B2

accent

#4B94DC

background

#F8FDFA

surface

#F0FAF4

border

#CBD3CE

text

#0C140F

muted

#7D837F

Preview Lab

Preview with #42C583

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

Preview Lab → · Contrast checker → · Palette generator →