#428F1D#428F1D

#428F1D is a mid, vivid green. Relative luminance 0.209; OKLCH L 57.9% C 0.164 H 137.9°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#428F1D
RGB	rgb(66, 143, 29)
HSL	hsl(101, 66%, 34%)
HSV	hsv(101, 80%, 56%)
CMYK	cmyk(53.8%, 0%, 79.7%, 43.9%)
CIE-LAB	lab(52.83, -43.84, 49.28)
CIE-LCH	lch(52.83, 65.96, 131.65°)
OKLab	oklab(57.88% -0.1214 0.1097)
OKLCH	oklch(57.88% 0.164 137.9)
XYZ	xyz(12.2906, 20.8909, 4.5469)
Luminance	0.2089 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428F1D #6A1D8F

analogous

#7B8F1D #428F1D #1D8F31

triadic

#428F1D #1D428F #8F1D42

tetradic

#428F1D #1D7B8F #6A1D8F #8F311D

square

#428F1D #1D7B8F #6A1D8F #8F311D

split-complementary

#428F1D #311D8F #8F1D7B

monochromatic

#132908 #2B5C13 #428F1D #59C227 #7ADB4C

Accessibility & contrast

On white

4.06

#428F1D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#428F1D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428F1D

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428F1D	#FFFFFF	#000000	##000000
##428F1D	1.00	4.06	5.18	5.18
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#948200

Deuteranopia (green-blind)

#8A7C2A

Tritanopia (blue-blind)

#3C8A7A

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #428f1d;
/* rgb */ color: rgb(66, 143, 29);
/* oklch */ color: oklch(57.9% 0.164 137.9);

Tailwind

colors: {
  custom: {
    50: '#7fb063',
    500: '#428f1d',
    950: '#000000',
  },
}

SCSS

$custom: #428f1d;
$custom-light: #7fb063;
$custom-dark: #000000;

JSON

{
  "hex": "#428f1d",
  "rgb": {
    "r": 66,
    "g": 143,
    "b": 29
  },
  "hsl": {
    "h": 100.526,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.57884,
    "c": 0.16359,
    "h": 137.9
  },
  "luminance": 0.20892
}

Semantic roles & 50–950 ramp

primary

#428F1D

secondary

#984BBD

accent

#3FE9B2

background

#F8FAF6

surface

#EFF5EB

border

#CACFC6

text

#0B1106

muted

#7C807A

Preview Lab

Preview with #428F1D

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

Preview Lab → · Contrast checker → · Palette generator →