#428F4A#428F4A

#428F4A is a mid, vivid green. Relative luminance 0.213; OKLCH L 58.4% C 0.128 H 145.8°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#428F4A
RGB	rgb(66, 143, 74)
HSL	hsl(126, 37%, 41%)
HSV	hsv(126, 54%, 56%)
CMYK	cmyk(53.8%, 0%, 48.3%, 43.9%)
CIE-LAB	lab(53.27, -38.98, 29.54)
CIE-LCH	lch(53.27, 48.91, 142.84°)
OKLab	oklab(58.39% -0.1057 0.072)
OKLCH	oklch(58.39% 0.128 145.8)
XYZ	xyz(13.3045, 21.2965, 9.8868)
Luminance	0.2130 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428F4A #8F4287

analogous

#608F42 #428F4A #428F70

triadic

#428F4A #4A428F #8F4A42

tetradic

#428F4A #42608F #8F4287 #8F7042

square

#428F4A #42608F #8F4287 #8F7042

split-complementary

#428F4A #70428F #8F4260

monochromatic

#1B3B1F #2F6534 #428F4A #5BB364 #85C78C

Accessibility & contrast

On white

3.99

#428F4A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#428F4A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428F4A

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428F4A	#FFFFFF	#000000	##000000
##428F4A	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#918444

Deuteranopia (green-blind)

#877C4F

Tritanopia (blue-blind)

#358C7F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #428f4a;
/* rgb */ color: rgb(66, 143, 74);
/* oklch */ color: oklch(58.4% 0.128 145.8);

Tailwind

colors: {
  custom: {
    50: '#7db07e',
    500: '#428f4a',
    950: '#000000',
  },
}

SCSS

$custom: #428f4a;
$custom-light: #7db07e;
$custom-dark: #000000;

JSON

{
  "hex": "#428f4a",
  "rgb": {
    "r": 66,
    "g": 143,
    "b": 74
  },
  "hsl": {
    "h": 126.234,
    "s": 36.842,
    "l": 40.98
  },
  "oklch": {
    "l": 0.5839,
    "c": 0.12789,
    "h": 145.8
  },
  "luminance": 0.21298
}

Semantic roles & 50–950 ramp

primary

#428F4A

secondary

#B17BAC

accent

#5BC1CD

background

#F7FAF7

surface

#EEF5EE

border

#C9CFC9

text

#0A100A

muted

#7C7F7C

Preview Lab

Preview with #428F4A

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

Preview Lab → · Contrast checker → · Palette generator →