#42BB3B#42BB3B

#42BB3B is a light, vivid green. Relative luminance 0.370; OKLCH L 69.9% C 0.198 H 142.3°. Best body text is #000000 at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#42BB3B
RGB	rgb(66, 187, 59)
HSL	hsl(117, 52%, 48%)
HSV	hsv(117, 68%, 73%)
CMYK	cmyk(64.7%, 0%, 68.4%, 26.7%)
CIE-LAB	lab(67.29, -57.66, 52.81)
CIE-LCH	lch(67.29, 78.19, 137.51°)
OKLab	oklab(69.89% -0.1569 0.1211)
OKLCH	oklch(69.89% 0.198 142.3)
XYZ	xyz(20.8054, 37.0126, 10.1845)
Luminance	0.3701 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BB3B #B43BBB

analogous

#82BB3B #42BB3B #3BBB74

triadic

#42BB3B #3B42BB #BB3B42

tetradic

#42BB3B #3B82BB #B43BBB #BB743B

square

#42BB3B #3B82BB #B43BBB #BB743B

split-complementary

#42BB3B #743BBB #BB3B82

monochromatic

#215E1E #328C2C #42BB3B #6BCE65 #97DD93

Accessibility & contrast

On white

2.50

#42BB3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.40

#42BB3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BB3B

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BB3B	#FFFFFF	#000000	##000000
##42BB3B	1.00	2.50	8.40	8.40
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.40	21.00	1.00	1.00
##000000	8.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFAA29

Deuteranopia (green-blind)

#B1A047

Tritanopia (blue-blind)

#29B5A1

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #42bb3b;
/* rgb */ color: rgb(66, 187, 59);
/* oklch */ color: oklch(69.9% 0.198 142.3);

Tailwind

colors: {
  custom: {
    50: '#85d077',
    500: '#42bb3b',
    950: '#000000',
  },
}

SCSS

$custom: #42bb3b;
$custom-light: #85d077;
$custom-dark: #000000;

JSON

{
  "hex": "#42bb3b",
  "rgb": {
    "r": 66,
    "g": 187,
    "b": 59
  },
  "hsl": {
    "h": 116.719,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.69891,
    "c": 0.19825,
    "h": 142.3
  },
  "luminance": 0.37015
}

Semantic roles & 50–950 ramp

primary

#42BB3B

secondary

#C58AC8

accent

#4CDBD4

background

#F8FCF7

surface

#F0F9EE

border

#CBD2C9

text

#0C1409

muted

#7D827B

Preview Lab

Preview with #42BB3B

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

Preview Lab → · Contrast checker → · Palette generator →