#428B31#428B31

#428B31 is a mid, vivid green. Relative luminance 0.198; OKLCH L 57.0% C 0.145 H 140.0°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#428B31
RGB	rgb(66, 139, 49)
HSL	hsl(109, 48%, 37%)
HSV	hsv(109, 65%, 55%)
CMYK	cmyk(52.5%, 0%, 64.7%, 45.5%)
CIE-LAB	lab(51.66, -40.58, 40.12)
CIE-LCH	lch(51.66, 57.06, 135.32°)
OKLab	oklab(56.97% -0.1112 0.0932)
OKLCH	oklch(56.97% 0.145 140)
XYZ	xyz(12.0333, 19.8443, 6.1014)
Luminance	0.1984 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428B31 #7A318B

analogous

#6F8B31 #428B31 #318B4D

triadic

#428B31 #31428B #8B3142

tetradic

#428B31 #316F8B #7A318B #8B4D31

square

#428B31 #316F8B #7A318B #8B4D31

split-complementary

#428B31 #4D318B #8B316F

monochromatic

#173111 #2D5E21 #428B31 #57B841 #7DCB6B

Accessibility & contrast

On white

4.23

#428B31 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#428B31 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428B31

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428B31	#FFFFFF	#000000	##000000
##428B31	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7F26

Deuteranopia (green-blind)

#857938

Tritanopia (blue-blind)

#3B8778

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #428b31;
/* rgb */ color: rgb(66, 139, 49);
/* oklch */ color: oklch(57.0% 0.145 140.0);

Tailwind

colors: {
  custom: {
    50: '#7dad6d',
    500: '#428b31',
    950: '#000000',
  },
}

SCSS

$custom: #428b31;
$custom-light: #7dad6d;
$custom-dark: #000000;

JSON

{
  "hex": "#428b31",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 49
  },
  "hsl": {
    "h": 108.667,
    "s": 47.872,
    "l": 36.863
  },
  "oklch": {
    "l": 0.56969,
    "c": 0.14511,
    "h": 140
  },
  "luminance": 0.19845
}

Semantic roles & 50–950 ramp

primary

#428B31

secondary

#A465B2

accent

#50D7BE

background

#F8FAF6

surface

#EFF4EC

border

#CACEC7

text

#0A1007

muted

#7C7F7A

Preview Lab

Preview with #428B31

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

Preview Lab → · Contrast checker → · Palette generator →