#428F4B#428F4B

#428F4B is a mid, vivid green. Relative luminance 0.213; OKLCH L 58.4% C 0.127 H 146.1°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#428F4B
RGB	rgb(66, 143, 75)
HSL	hsl(127, 37%, 41%)
HSV	hsv(127, 54%, 56%)
CMYK	cmyk(53.8%, 0%, 47.6%, 43.9%)
CIE-LAB	lab(53.29, -38.82, 29.03)
CIE-LCH	lch(53.29, 48.47, 143.21°)
OKLab	oklab(58.41% -0.1053 0.0708)
OKLCH	oklch(58.41% 0.127 146.1)
XYZ	xyz(13.3384, 21.3101, 10.0656)
Luminance	0.2131 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428F4B #8F4286

analogous

#5F8F42 #428F4B #428F71

triadic

#428F4B #4B428F #8F4B42

tetradic

#428F4B #425F8F #8F4286 #8F7142

square

#428F4B #425F8F #8F4286 #8F7142

split-complementary

#428F4B #71428F #8F425F

monochromatic

#1B3B1F #2F6535 #428F4B #5BB365 #85C78C

Accessibility & contrast

On white

3.99

#428F4B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#428F4B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428F4B

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428F4B	#FFFFFF	#000000	##000000
##428F4B	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)

#918446

Deuteranopia (green-blind)

#877D50

Tritanopia (blue-blind)

#348C7F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #428f4b;
/* rgb */ color: rgb(66, 143, 75);
/* oklch */ color: oklch(58.4% 0.127 146.1);

Tailwind

colors: {
  custom: {
    50: '#7db07e',
    500: '#428f4b',
    950: '#000000',
  },
}

SCSS

$custom: #428f4b;
$custom-light: #7db07e;
$custom-dark: #000000;

JSON

{
  "hex": "#428f4b",
  "rgb": {
    "r": 66,
    "g": 143,
    "b": 75
  },
  "hsl": {
    "h": 127.013,
    "s": 36.842,
    "l": 40.98
  },
  "oklch": {
    "l": 0.58407,
    "c": 0.1269,
    "h": 146.1
  },
  "luminance": 0.21311
}

Semantic roles & 50–950 ramp

primary

#428F4B

secondary

#B17BAB

accent

#5BC0CD

background

#F7FAF7

surface

#EEF5EE

border

#C9CFC9

text

#0A100A

muted

#7C7F7C

Preview Lab

Preview with #428F4B

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

Preview Lab → · Contrast checker → · Palette generator →