#42C840#42C840

#42C840 is a light, highly saturated green. Relative luminance 0.428; OKLCH L 73.3% C 0.210 H 142.9°. Best body text is #000000 at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#42C840
RGB	rgb(66, 200, 64)
HSL	hsl(119, 55%, 52%)
HSV	hsv(119, 68%, 78%)
CMYK	cmyk(67%, 0%, 68%, 21.6%)
CIE-LAB	lab(71.44, -61.65, 55.24)
CIE-LCH	lch(71.44, 82.78, 138.14°)
OKLab	oklab(73.34% -0.1675 0.1268)
OKLCH	oklch(73.34% 0.21 142.9)
XYZ	xyz(23.8251, 42.8345, 11.8618)
Luminance	0.4284 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C840 #C640C8

analogous

#86C840 #42C840 #40C882

triadic

#42C840 #4042C8 #C84042

tetradic

#42C840 #4086C8 #C640C8 #C88240

square

#42C840 #4086C8 #C640C8 #C88240

split-complementary

#42C840 #8240C8 #C84086

monochromatic

#216E20 #2F9D2D #42C840 #71D670 #A0E39F

Accessibility & contrast

On white

2.19

#42C840 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.57

#42C840 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C840

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C840	#FFFFFF	#000000	##000000
##42C840	1.00	2.19	9.57	9.57
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.57	21.00	1.00	1.00
##000000	9.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CCB62D

Deuteranopia (green-blind)

#BCAB4D

Tritanopia (blue-blind)

#21C2AC

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #42c840;
/* rgb */ color: rgb(66, 200, 64);
/* oklch */ color: oklch(73.3% 0.210 142.9);

Tailwind

colors: {
  custom: {
    50: '#88da7b',
    500: '#42c840',
    950: '#000000',
  },
}

SCSS

$custom: #42c840;
$custom-light: #88da7b;
$custom-dark: #000000;

JSON

{
  "hex": "#42c840",
  "rgb": {
    "r": 66,
    "g": 200,
    "b": 64
  },
  "hsl": {
    "h": 119.118,
    "s": 55.285,
    "l": 51.765
  },
  "oklch": {
    "l": 0.73344,
    "c": 0.21009,
    "h": 142.9
  },
  "luminance": 0.42837
}

Semantic roles & 50–950 ramp

primary

#42C840

secondary

#CF94D0

accent

#49DFDC

background

#F9FDF7

surface

#F1FBEE

border

#CBD4C9

text

#0D150A

muted

#7E837C

Preview Lab

Preview with #42C840

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

Preview Lab → · Contrast checker → · Palette generator →