#42B228#42B228

#42B228 is a light, vivid green. Relative luminance 0.332; OKLCH L 67.4% C 0.199 H 140.5°. Best body text is #000000 at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#42B228
RGB	rgb(66, 178, 40)
HSL	hsl(109, 63%, 43%)
HSV	hsv(109, 78%, 70%)
CMYK	cmyk(62.9%, 0%, 77.5%, 30.2%)
CIE-LAB	lab(64.28, -56.02, 56.70)
CIE-LCH	lch(64.28, 79.71, 134.66°)
OKLab	oklab(67.36% -0.1535 0.1268)
OKLCH	oklch(67.36% 0.199 140.5)
XYZ	xyz(18.5493, 33.1505, 7.4282)
Luminance	0.3315 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B228 #9828B2

analogous

#87B228 #42B228 #28B253

triadic

#42B228 #2842B2 #B22842

tetradic

#42B228 #2887B2 #9828B2 #B25328

square

#42B228 #2887B2 #9828B2 #B25328

split-complementary

#42B228 #5328B2 #B22887

monochromatic

#1D4E12 #2F801D #42B228 #5ED543 #89E075

Accessibility & contrast

On white

2.75

#42B228 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.63

#42B228 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B228

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B228	#FFFFFF	#000000	##000000
##42B228	1.00	2.75	7.63	7.63
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.63	21.00	1.00	1.00
##000000	7.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A102

Deuteranopia (green-blind)

#A99838

Tritanopia (blue-blind)

#31AC98

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #42b228;
/* rgb */ color: rgb(66, 178, 40);
/* oklch */ color: oklch(67.4% 0.199 140.5);

Tailwind

colors: {
  custom: {
    50: '#85ca6d',
    500: '#42b228',
    950: '#000000',
  },
}

SCSS

$custom: #42b228;
$custom-light: #85ca6d;
$custom-dark: #000000;

JSON

{
  "hex": "#42b228",
  "rgb": {
    "r": 66,
    "g": 178,
    "b": 40
  },
  "hsl": {
    "h": 108.696,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.67364,
    "c": 0.1991,
    "h": 140.5
  },
  "luminance": 0.33152
}

Semantic roles & 50–950 ramp

primary

#42B228

secondary

#B76FC7

accent

#41E6C7

background

#F8FCF6

surface

#F0F8EC

border

#CBD1C7

text

#0C1308

muted

#7D827B

Preview Lab

Preview with #42B228

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

Preview Lab → · Contrast checker → · Palette generator →