#428C21#428C21

#428C21 is a mid, vivid green. Relative luminance 0.200; OKLCH L 57.1% C 0.158 H 138.0°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#428C21
RGB	rgb(66, 140, 33)
HSL	hsl(101, 62%, 34%)
HSV	hsv(101, 76%, 55%)
CMYK	cmyk(52.9%, 0%, 76.4%, 45.1%)
CIE-LAB	lab(51.86, -42.39, 46.97)
CIE-LCH	lch(51.86, 63.27, 132.07°)
OKLab	oklab(57.1% -0.1172 0.1055)
OKLCH	oklch(57.1% 0.158 138)
XYZ	xyz(11.8989, 20.0233, 4.6764)
Luminance	0.2002 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428C21 #6B218C

analogous

#788C21 #428C21 #218C35

triadic

#428C21 #21428C #8C2142

tetradic

#428C21 #21788C #6B218C #8C3521

square

#428C21 #21788C #6B218C #8C3521

split-complementary

#428C21 #35218C #8C2178

monochromatic

#13290A #2B5A15 #428C21 #59BE2D #7AD651

Accessibility & contrast

On white

4.20

#428C21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#428C21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428C21

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428C21	#FFFFFF	#000000	##000000
##428C21	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#917F0A

Deuteranopia (green-blind)

#87792C

Tritanopia (blue-blind)

#3C8778

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428c21;
/* rgb */ color: rgb(66, 140, 33);
/* oklch */ color: oklch(57.1% 0.158 138.0);

Tailwind

colors: {
  custom: {
    50: '#7eae64',
    500: '#428c21',
    950: '#000000',
  },
}

SCSS

$custom: #428c21;
$custom-light: #7eae64;
$custom-dark: #000000;

JSON

{
  "hex": "#428c21",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 33
  },
  "hsl": {
    "h": 101.495,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.57095,
    "c": 0.15766,
    "h": 138
  },
  "luminance": 0.20024
}

Semantic roles & 50–950 ramp

primary

#428C21

secondary

#994FB9

accent

#43E5B3

background

#F8FAF6

surface

#EFF4EB

border

#CACEC6

text

#0B1006

muted

#7C7F7A

Preview Lab

Preview with #428C21

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

Preview Lab → · Contrast checker → · Palette generator →