#428B2D#428B2D

#428B2D is a mid, vivid green. Relative luminance 0.198; OKLCH L 56.9% C 0.148 H 139.4°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#428B2D
RGB	rgb(66, 139, 45)
HSL	hsl(107, 51%, 36%)
HSV	hsv(107, 68%, 55%)
CMYK	cmyk(52.5%, 0%, 67.6%, 45.5%)
CIE-LAB	lab(51.62, -40.98, 41.88)
CIE-LCH	lch(51.62, 58.59, 134.38°)
OKLab	oklab(56.93% -0.1126 0.0964)
OKLCH	oklch(56.93% 0.148 139.4)
XYZ	xyz(11.9526, 19.8120, 5.6764)
Luminance	0.1981 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428B2D #762D8B

analogous

#718B2D #428B2D #2D8B47

triadic

#428B2D #2D428B #8B2D42

tetradic

#428B2D #2D718B #762D8B #8B472D

square

#428B2D #2D718B #762D8B #8B472D

split-complementary

#428B2D #472D8B #8B2D71

monochromatic

#162F0F #2C5D1E #428B2D #58B93C #7CCD65

Accessibility & contrast

On white

4.23

#428B2D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#428B2D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428B2D

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428B2D	#FFFFFF	#000000	##000000
##428B2D	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7F21

Deuteranopia (green-blind)

#857935

Tritanopia (blue-blind)

#3B8678

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #428b2d;
/* rgb */ color: rgb(66, 139, 45);
/* oklch */ color: oklch(56.9% 0.148 139.4);

Tailwind

colors: {
  custom: {
    50: '#7dad6b',
    500: '#428b2d',
    950: '#000000',
  },
}

SCSS

$custom: #428b2d;
$custom-light: #7dad6b;
$custom-dark: #000000;

JSON

{
  "hex": "#428b2d",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 45
  },
  "hsl": {
    "h": 106.596,
    "s": 51.087,
    "l": 36.078
  },
  "oklch": {
    "l": 0.56927,
    "c": 0.14825,
    "h": 139.4
  },
  "luminance": 0.19813
}

Semantic roles & 50–950 ramp

primary

#428B2D

secondary

#A160B4

accent

#4DDBBB

background

#F8FAF6

surface

#EFF4EB

border

#CACEC6

text

#0A1007

muted

#7C7F7A

Preview Lab

Preview with #428B2D

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

Preview Lab → · Contrast checker → · Palette generator →