#42CB3B#42CB3B

#42CB3B is a light, highly saturated green. Relative luminance 0.442; OKLCH L 74.1% C 0.217 H 142.4°. Best body text is #000000 at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#42CB3B
RGB	rgb(66, 203, 59)
HSL	hsl(117, 58%, 51%)
HSV	hsv(117, 71%, 80%)
CMYK	cmyk(67.5%, 0%, 70.9%, 20.4%)
CIE-LAB	lab(72.35, -63.09, 58.12)
CIE-LCH	lch(72.35, 85.78, 137.35°)
OKLab	oklab(74.09% -0.1716 0.1323)
OKLCH	oklch(74.09% 0.217 142.4)
XYZ	xyz(24.3907, 44.1833, 11.3797)
Luminance	0.4419 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42CB3B #C43BCB

analogous

#8ACB3B #42CB3B #3BCB7C

triadic

#42CB3B #3B42CB #CB3B42

tetradic

#42CB3B #3B8ACB #C43BCB #CB7C3B

square

#42CB3B #3B8ACB #C43BCB #CB7C3B

split-complementary

#42CB3B #7C3BCB #CB3B8A

monochromatic

#216E1D #309F2A #42CB3B #71D86B #9FE59C

Accessibility & contrast

On white

2.13

#42CB3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.84

#42CB3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42CB3B

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42CB3B	#FFFFFF	#000000	##000000
##42CB3B	1.00	2.13	9.84	9.84
#FFFFFF	2.13	1.00	21.00	21.00
#000000	9.84	21.00	1.00	1.00
##000000	9.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B823

Deuteranopia (green-blind)

#BFAD49

Tritanopia (blue-blind)

#20C5AF

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #42cb3b;
/* rgb */ color: rgb(66, 203, 59);
/* oklch */ color: oklch(74.1% 0.217 142.4);

Tailwind

colors: {
  custom: {
    50: '#88dc79',
    500: '#42cb3b',
    950: '#000000',
  },
}

SCSS

$custom: #42cb3b;
$custom-light: #88dc79;
$custom-dark: #000000;

JSON

{
  "hex": "#42cb3b",
  "rgb": {
    "r": 66,
    "g": 203,
    "b": 59
  },
  "hsl": {
    "h": 117.083,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.74085,
    "c": 0.21669,
    "h": 142.4
  },
  "luminance": 0.44186
}

Semantic roles & 50–950 ramp

primary

#42CB3B

secondary

#CE91D1

accent

#47E1DA

background

#F9FDF7

surface

#F1FBEE

border

#CBD4C9

text

#0D150A

muted

#7E837C

Preview Lab

Preview with #42CB3B

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

Preview Lab → · Contrast checker → · Palette generator →