#42C978#42C978

#42C978 is a light, vivid green. Relative luminance 0.443; OKLCH L 74.4% C 0.165 H 153.0°. Best body text is #000000 at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#42C978
RGB	rgb(66, 201, 120)
HSL	hsl(144, 56%, 52%)
HSV	hsv(144, 67%, 79%)
CMYK	cmyk(67.2%, 0%, 40.3%, 21.2%)
CIE-LAB	lab(72.42, -54.38, 30.11)
CIE-LCH	lch(72.42, 62.17, 151.02°)
OKLab	oklab(74.37% -0.1468 0.0748)
OKLCH	oklch(74.37% 0.165 153)
XYZ	xyz(26.5213, 44.2847, 24.9158)
Luminance	0.4429 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C978 #C94293

analogous

#4FC942 #42C978 #42C9BC

triadic

#42C978 #7842C9 #C97842

tetradic

#42C978 #424FC9 #C94293 #C9BC42

square

#42C978 #424FC9 #C94293 #C9BC42

split-complementary

#42C978 #BC42C9 #C9424F

monochromatic

#207040 #2EA05B #42C978 #72D79A #A1E4BC

Accessibility & contrast

On white

2.13

#42C978 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.86

#42C978 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C978

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C978	#FFFFFF	#000000	##000000
##42C978	1.00	2.13	9.86	9.86
#FFFFFF	2.13	1.00	21.00	21.00
#000000	9.86	21.00	1.00	1.00
##000000	9.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C9B972

Deuteranopia (green-blind)

#B8AD7D

Tritanopia (blue-blind)

#00C6B5

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #42c978;
/* rgb */ color: rgb(66, 201, 120);
/* oklch */ color: oklch(74.4% 0.165 153.0);

Tailwind

colors: {
  custom: {
    50: '#86daa0',
    500: '#42c978',
    950: '#000000',
  },
}

SCSS

$custom: #42c978;
$custom-light: #86daa0;
$custom-dark: #000000;

JSON

{
  "hex": "#42c978",
  "rgb": {
    "r": 66,
    "g": 201,
    "b": 120
  },
  "hsl": {
    "h": 144,
    "s": 55.556,
    "l": 52.353
  },
  "oklch": {
    "l": 0.74365,
    "c": 0.16479,
    "h": 153
  },
  "luminance": 0.44288
}

Semantic roles & 50–950 ramp

primary

#42C978

secondary

#D196B9

accent

#49A3DF

background

#F8FDF9

surface

#F0FBF2

border

#CBD4CC

text

#0C150E

muted

#7D837E

Preview Lab

Preview with #42C978

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

Preview Lab → · Contrast checker → · Palette generator →