#428F4D#428F4D

#428F4D is a mid, vivid green. Relative luminance 0.213; OKLCH L 58.4% C 0.125 H 146.7°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#428F4D
RGB	rgb(66, 143, 77)
HSL	hsl(129, 37%, 41%)
HSV	hsv(129, 54%, 56%)
CMYK	cmyk(53.8%, 0%, 46.2%, 43.9%)
CIE-LAB	lab(53.32, -38.50, 28.00)
CIE-LCH	lch(53.32, 47.60, 143.97°)
OKLab	oklab(58.44% -0.1044 0.0686)
OKLCH	oklch(58.44% 0.125 146.7)
XYZ	xyz(13.4080, 21.3379, 10.4318)
Luminance	0.2134 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428F4D #8F4284

analogous

#5D8F42 #428F4D #428F73

triadic

#428F4D #4D428F #8F4D42

tetradic

#428F4D #425D8F #8F4284 #8F7342

square

#428F4D #425D8F #8F4284 #8F7342

split-complementary

#428F4D #73428F #8F425D

monochromatic

#1B3B20 #2F6536 #428F4D #5BB368 #85C78E

Accessibility & contrast

On white

3.99

#428F4D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#428F4D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428F4D

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428F4D	#FFFFFF	#000000	##000000
##428F4D	1.00	3.99	5.27	5.27
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#918448

Deuteranopia (green-blind)

#867D51

Tritanopia (blue-blind)

#348C7F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #428f4d;
/* rgb */ color: rgb(66, 143, 77);
/* oklch */ color: oklch(58.4% 0.125 146.7);

Tailwind

colors: {
  custom: {
    50: '#7db080',
    500: '#428f4d',
    950: '#000000',
  },
}

SCSS

$custom: #428f4d;
$custom-light: #7db080;
$custom-dark: #000000;

JSON

{
  "hex": "#428f4d",
  "rgb": {
    "r": 66,
    "g": 143,
    "b": 77
  },
  "hsl": {
    "h": 128.571,
    "s": 36.842,
    "l": 40.98
  },
  "oklch": {
    "l": 0.58442,
    "c": 0.1249,
    "h": 146.7
  },
  "luminance": 0.21339
}

Semantic roles & 50–950 ramp

primary

#428F4D

secondary

#B17BAA

accent

#5BBDCD

background

#F7FAF7

surface

#EEF5EE

border

#C9CFC9

text

#0A100A

muted

#7C7F7C

Preview Lab

Preview with #428F4D

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

Preview Lab → · Contrast checker → · Palette generator →