#42D178#42D178

#42D178 is a light, vivid green. Relative luminance 0.481; OKLCH L 76.4% C 0.175 H 152.0°. Best body text is #000000 at 10.62:1 contrast (WCAG AA passes).

Color values

HEX	#42D178
RGB	rgb(66, 209, 120)
HSL	hsl(143, 61%, 54%)
HSV	hsv(143, 68%, 82%)
CMYK	cmyk(68.4%, 0%, 42.6%, 18%)
CIE-LAB	lab(74.90, -57.38, 33.35)
CIE-LCH	lch(74.90, 66.37, 149.84°)
OKLab	oklab(76.41% -0.1547 0.0824)
OKLCH	oklch(76.41% 0.175 152)
XYZ	xyz(28.4350, 48.1121, 25.5537)
Luminance	0.4812 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D178 #D1429B

analogous

#54D142 #42D178 #42D1BF

triadic

#42D178 #7842D1 #D17842

tetradic

#42D178 #4254D1 #D1429B #D1BF42

square

#42D178 #4254D1 #D1429B #D1BF42

split-complementary

#42D178 #BF42D1 #D14254

monochromatic

#1E7B41 #2AAC5B #42D178 #73DD9B #A4E9BE

Accessibility & contrast

On white

1.98

#42D178 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.62

#42D178 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D178

10.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D178	#FFFFFF	#000000	##000000
##42D178	1.00	1.98	10.62	10.62
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.62	21.00	1.00	1.00
##000000	10.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1C072

Deuteranopia (green-blind)

#C0B37E

Tritanopia (blue-blind)

#00CEBB

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #42d178;
/* rgb */ color: rgb(66, 209, 120);
/* oklch */ color: oklch(76.4% 0.175 152.0);

Tailwind

colors: {
  custom: {
    50: '#88e0a0',
    500: '#42d178',
    950: '#000000',
  },
}

SCSS

$custom: #42d178;
$custom-light: #88e0a0;
$custom-dark: #000000;

JSON

{
  "hex": "#42d178",
  "rgb": {
    "r": 66,
    "g": 209,
    "b": 120
  },
  "hsl": {
    "h": 142.657,
    "s": 60.851,
    "l": 53.922
  },
  "oklch": {
    "l": 0.76407,
    "c": 0.17528,
    "h": 152
  },
  "luminance": 0.48115
}

Semantic roles & 50–950 ramp

primary

#42D178

secondary

#D699BF

accent

#44A7E4

background

#F9FDF9

surface

#F1FBF2

border

#CBD4CC

text

#0D150F

muted

#7E837E

Preview Lab

Preview with #42D178

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

Preview Lab → · Contrast checker → · Palette generator →