#42CC57#42CC57

#42CC57 is a light, vivid green. Relative luminance 0.450; OKLCH L 74.6% C 0.198 H 145.7°. Best body text is #000000 at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#42CC57
RGB	rgb(66, 204, 87)
HSL	hsl(129, 58%, 53%)
HSV	hsv(129, 68%, 80%)
CMYK	cmyk(67.6%, 0%, 57.4%, 20%)
CIE-LAB	lab(72.91, -60.51, 46.97)
CIE-LCH	lch(72.91, 76.60, 142.18°)
OKLab	oklab(74.63% -0.1634 0.1114)
OKLCH	oklch(74.63% 0.198 145.7)
XYZ	xyz(25.5582, 45.0294, 16.3596)
Luminance	0.4503 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42CC57 #CC42B7

analogous

#72CC42 #42CC57 #42CC9C

triadic

#42CC57 #5742CC #CC5742

tetradic

#42CC57 #4272CC #CC42B7 #CC9C42

square

#42CC57 #4272CC #CC42B7 #CC9C42

split-complementary

#42CC57 #9C42CC #CC4272

monochromatic

#1F742C #2CA43F #42CC57 #72D982 #A2E6AD

Accessibility & contrast

On white

2.10

#42CC57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.01

#42CC57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42CC57

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42CC57	#FFFFFF	#000000	##000000
##42CC57	1.00	2.10	10.01	10.01
#FFFFFF	2.10	1.00	21.00	21.00
#000000	10.01	21.00	1.00	1.00
##000000	10.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CFBA4B

Deuteranopia (green-blind)

#BFAE60

Tritanopia (blue-blind)

#10C7B2

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #42cc57;
/* rgb */ color: rgb(66, 204, 87);
/* oklch */ color: oklch(74.6% 0.198 145.7);

Tailwind

colors: {
  custom: {
    50: '#87dd8a',
    500: '#42cc57',
    950: '#000000',
  },
}

SCSS

$custom: #42cc57;
$custom-light: #87dd8a;
$custom-dark: #000000;

JSON

{
  "hex": "#42cc57",
  "rgb": {
    "r": 66,
    "g": 204,
    "b": 87
  },
  "hsl": {
    "h": 129.13,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.74628,
    "c": 0.19777,
    "h": 145.7
  },
  "luminance": 0.45032
}

Semantic roles & 50–950 ramp

primary

#42CC57

secondary

#D397CA

accent

#47C9E1

background

#F9FDF8

surface

#F1FBF0

border

#CBD4CB

text

#0D150C

muted

#7E837D

Preview Lab

Preview with #42CC57

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

Preview Lab → · Contrast checker → · Palette generator →