#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
RGBrgb(66, 204, 59)
HSLhsl(117, 59%, 52%)
HSVhsv(117, 71%, 80%)
CMYKcmyk(67.6%, 0%, 71.1%, 20%)
CIE-LABlab(72.67, -63.42, 58.45)
CIE-LCHlch(72.67, 86.24, 137.34°)
OKLaboklab(74.35% -0.1725 0.1329)
OKLCHoklch(74.35% 0.218 142.4)
XYZxyz(24.6276, 44.6572, 11.4586)
Luminance0.4466 (WCAG relative)
Temperatureneutral
Familygreen

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
##42CC3B1.002.119.939.93
#FFFFFF2.111.0021.0021.00
#0000009.9321.001.001.00
##0000009.9321.001.001.00

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 →

#42CC3B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva