#428B4A#428B4A

#428B4A is a mid, vivid green. Relative luminance 0.201; OKLCH L 57.3% C 0.122 H 146.0°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#428B4A
RGB	rgb(66, 139, 74)
HSL	hsl(127, 36%, 40%)
HSV	hsv(127, 53%, 55%)
CMYK	cmyk(52.5%, 0%, 46.8%, 45.5%)
CIE-LAB	lab(51.97, -37.25, 27.89)
CIE-LCH	lch(51.97, 46.54, 143.18°)
OKLab	oklab(57.32% -0.1011 0.0682)
OKLCH	oklch(57.32% 0.122 146)
XYZ	xyz(12.7147, 20.1169, 9.6902)
Luminance	0.2012 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428B4A #8B4283

analogous

#5F8B42 #428B4A #428B6E

triadic

#428B4A #4A428B #8B4A42

tetradic

#428B4A #425F8B #8B4283 #8B6E42

square

#428B4A #425F8B #8B4283 #8B6E42

split-complementary

#428B4A #6E428B #8B425F

monochromatic

#1B381E #2E6234 #428B4A #5AB163 #83C48A

Accessibility & contrast

On white

4.18

#428B4A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#428B4A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428B4A

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428B4A	#FFFFFF	#000000	##000000
##428B4A	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D8045

Deuteranopia (green-blind)

#83794E

Tritanopia (blue-blind)

#36887B

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428b4a;
/* rgb */ color: rgb(66, 139, 74);
/* oklch */ color: oklch(57.3% 0.122 146.0);

Tailwind

colors: {
  custom: {
    50: '#7cad7d',
    500: '#428b4a',
    950: '#000000',
  },
}

SCSS

$custom: #428b4a;
$custom-light: #7cad7d;
$custom-dark: #000000;

JSON

{
  "hex": "#428b4a",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 74
  },
  "hsl": {
    "h": 126.575,
    "s": 35.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.57322,
    "c": 0.12195,
    "h": 146
  },
  "luminance": 0.20118
}

Semantic roles & 50–950 ramp

primary

#428B4A

secondary

#AF7AA9

accent

#5CBFCC

background

#F7FAF7

surface

#EEF4EE

border

#C9CEC9

text

#0A100A

muted

#7C7F7C

Preview Lab

Preview with #428B4A

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

Preview Lab → · Contrast checker → · Palette generator →