#42B538#42B538

#42B538 is a light, vivid green. Relative luminance 0.345; OKLCH L 68.3% C 0.193 H 142.0°. Best body text is #000000 at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#42B538
RGB	rgb(66, 181, 56)
HSL	hsl(115, 53%, 46%)
HSV	hsv(115, 69%, 71%)
CMYK	cmyk(63.5%, 0%, 69.1%, 29%)
CIE-LAB	lab(65.35, -55.83, 51.96)
CIE-LCH	lch(65.35, 76.27, 137.06°)
OKLab	oklab(68.28% -0.1521 0.119)
OKLCH	oklch(68.28% 0.193 142)
XYZ	xyz(19.4834, 34.4896, 9.3710)
Luminance	0.3449 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B538 #AB38B5

analogous

#81B538 #42B538 #38B56D

triadic

#42B538 #3842B5 #B53842

tetradic

#42B538 #3881B5 #AB38B5 #B56D38

square

#42B538 #3881B5 #AB38B5 #B56D38

split-complementary

#42B538 #6D38B5 #B53881

monochromatic

#20581B #31862A #42B538 #66CD5D #92DB8C

Accessibility & contrast

On white

2.66

#42B538 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.90

#42B538 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B538

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B538	#FFFFFF	#000000	##000000
##42B538	1.00	2.66	7.90	7.90
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.90	21.00	1.00	1.00
##000000	7.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A426

Deuteranopia (green-blind)

#AB9B44

Tritanopia (blue-blind)

#2DB09C

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #42b538;
/* rgb */ color: rgb(66, 181, 56);
/* oklch */ color: oklch(68.3% 0.193 142.0);

Tailwind

colors: {
  custom: {
    50: '#84cc75',
    500: '#42b538',
    950: '#000000',
  },
}

SCSS

$custom: #42b538;
$custom-light: #84cc75;
$custom-dark: #000000;

JSON

{
  "hex": "#42b538",
  "rgb": {
    "r": 66,
    "g": 181,
    "b": 56
  },
  "hsl": {
    "h": 115.2,
    "s": 52.743,
    "l": 46.471
  },
  "oklch": {
    "l": 0.68281,
    "c": 0.19314,
    "h": 142
  },
  "luminance": 0.34492
}

Semantic roles & 50–950 ramp

primary

#42B538

secondary

#C083C6

accent

#4CDCD1

background

#F8FCF7

surface

#F0F9ED

border

#CBD2C8

text

#0C1309

muted

#7D827B

Preview Lab

Preview with #42B538

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

Preview Lab → · Contrast checker → · Palette generator →