#42DA39#42DA39

#42DA39 is a light, highly saturated green. Relative luminance 0.516; OKLCH L 78.0% C 0.234 H 142.3°. Best body text is #000000 at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#42DA39
RGB	rgb(66, 218, 57)
HSL	hsl(117, 69%, 54%)
HSV	hsv(117, 74%, 85%)
CMYK	cmyk(69.7%, 0%, 73.9%, 14.5%)
CIE-LAB	lab(77.04, -68.11, 63.60)
CIE-LCH	lch(77.04, 93.19, 136.96°)
OKLab	oklab(77.97% -0.1853 0.1434)
OKLCH	oklch(77.97% 0.234 142.3)
XYZ	xyz(28.0551, 51.5934, 12.3501)
Luminance	0.5160 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42DA39 #D139DA

analogous

#93DA39 #42DA39 #39DA81

triadic

#42DA39 #3942DA #DA3942

tetradic

#42DA39 #3993DA #D139DA #DA8139

square

#42DA39 #3993DA #D139DA #DA8139

split-complementary

#42DA39 #8139DA #DA3993

monochromatic

#1E8118 #2AB422 #42DA39 #73E46D #A4EDA0

Accessibility & contrast

On white

1.86

#42DA39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.32

#42DA39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42DA39

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42DA39	#FFFFFF	#000000	##000000
##42DA39	1.00	1.86	11.32	11.32
#FFFFFF	1.86	1.00	21.00	21.00
#000000	11.32	21.00	1.00	1.00
##000000	11.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC618

Deuteranopia (green-blind)

#CEBA4A

Tritanopia (blue-blind)

#15D3BB

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #42da39;
/* rgb */ color: rgb(66, 218, 57);
/* oklch */ color: oklch(78.0% 0.234 142.3);

Tailwind

colors: {
  custom: {
    50: '#8ce77a',
    500: '#42da39',
    950: '#000000',
  },
}

SCSS

$custom: #42da39;
$custom-light: #8ce77a;
$custom-dark: #000000;

JSON

{
  "hex": "#42da39",
  "rgb": {
    "r": 66,
    "g": 218,
    "b": 57
  },
  "hsl": {
    "h": 116.646,
    "s": 68.511,
    "l": 53.922
  },
  "oklch": {
    "l": 0.77967,
    "c": 0.23436,
    "h": 142.3
  },
  "luminance": 0.51596
}

Semantic roles & 50–950 ramp

primary

#42DA39

secondary

#833088

accent

#3CEBE2

background

#FCFEFB

surface

#F5FDF2

border

#CFD5CC

text

#0E160A

muted

#7F847D

Preview Lab

Preview with #42DA39

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

Preview Lab → · Contrast checker → · Palette generator →