#42CC3B#42CC3B

#42CC3B is a light, highly saturated green. Relative luminance 0.447; OKLCH L 74.3% C 0.218 H 142.4°. Best body text is #000000 at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#42CC3B
RGB	rgb(66, 204, 59)
HSL	hsl(117, 59%, 52%)
HSV	hsv(117, 71%, 80%)
CMYK	cmyk(67.6%, 0%, 71.1%, 20%)
CIE-LAB	lab(72.67, -63.42, 58.45)
CIE-LCH	lch(72.67, 86.24, 137.34°)
OKLab	oklab(74.35% -0.1725 0.1329)
OKLCH	oklch(74.35% 0.218 142.4)
XYZ	xyz(24.6276, 44.6572, 11.4586)
Luminance	0.4466 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42CC3B #C53BCC

analogous

#8BCC3B #42CC3B #3BCC7C

triadic

#42CC3B #3B42CC #CC3B42

tetradic

#42CC3B #3B8BCC #C53BCC #CC7C3B

square

#42CC3B #3B8BCC #C53BCC #CC7C3B

split-complementary

#42CC3B #7C3BCC #CC3B8B

monochromatic

#21701D #2FA02A #42CC3B #71D96C #A0E59C

Accessibility & contrast

On white

2.11

#42CC3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.93

#42CC3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42CC3B

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42CC3B	#FFFFFF	#000000	##000000
##42CC3B	1.00	2.11	9.93	9.93
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.93	21.00	1.00	1.00
##000000	9.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1B923

Deuteranopia (green-blind)

#C0AE4A

Tritanopia (blue-blind)

#20C6AF

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #42cc3b;
/* rgb */ color: rgb(66, 204, 59);
/* oklch */ color: oklch(74.3% 0.218 142.4);

Tailwind

colors: {
  custom: {
    50: '#89dd79',
    500: '#42cc3b',
    950: '#000000',
  },
}

SCSS

$custom: #42cc3b;
$custom-light: #89dd79;
$custom-dark: #000000;

JSON

{
  "hex": "#42cc3b",
  "rgb": {
    "r": 66,
    "g": 204,
    "b": 59
  },
  "hsl": {
    "h": 117.103,
    "s": 58.704,
    "l": 51.569
  },
  "oklch": {
    "l": 0.74346,
    "c": 0.21781,
    "h": 142.4
  },
  "luminance": 0.4466
}

Semantic roles & 50–950 ramp

primary

#42CC3B

secondary

#CE92D1

accent

#46E2DA

background

#F9FDF7

surface

#F1FBEE

border

#CBD4C9

text

#0D150A

muted

#7E837C

Preview Lab

Preview with #42CC3B

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

Preview Lab → · Contrast checker → · Palette generator →