#428F4E#428F4E

#428F4E is a mid, vivid green. Relative luminance 0.214; OKLCH L 58.5% C 0.124 H 147.0°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#428F4E
RGB	rgb(66, 143, 78)
HSL	hsl(129, 37%, 41%)
HSV	hsv(129, 54%, 56%)
CMYK	cmyk(53.8%, 0%, 45.5%, 43.9%)
CIE-LAB	lab(53.33, -38.34, 27.48)
CIE-LCH	lch(53.33, 47.17, 144.37°)
OKLab	oklab(58.46% -0.1039 0.0674)
OKLCH	oklch(58.46% 0.124 147)
XYZ	xyz(13.4435, 21.3521, 10.6192)
Luminance	0.2135 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428F4E #8F4283

analogous

#5C8F42 #428F4E #428F74

triadic

#428F4E #4E428F #8F4E42

tetradic

#428F4E #425C8F #8F4283 #8F7442

square

#428F4E #425C8F #8F4283 #8F7442

split-complementary

#428F4E #74428F #8F425C

monochromatic

#1B3B20 #2F6537 #428F4E #5BB369 #85C78F

Accessibility & contrast

On white

3.98

#428F4E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#428F4E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428F4E

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428F4E	#FFFFFF	#000000	##000000
##428F4E	1.00	3.98	5.27	5.27
#FFFFFF	3.98	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)

#918449

Deuteranopia (green-blind)

#867D52

Tritanopia (blue-blind)

#338C7F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #428f4e;
/* rgb */ color: rgb(66, 143, 78);
/* oklch */ color: oklch(58.5% 0.124 147.0);

Tailwind

colors: {
  custom: {
    50: '#7db080',
    500: '#428f4e',
    950: '#000000',
  },
}

SCSS

$custom: #428f4e;
$custom-light: #7db080;
$custom-dark: #000000;

JSON

{
  "hex": "#428f4e",
  "rgb": {
    "r": 66,
    "g": 143,
    "b": 78
  },
  "hsl": {
    "h": 129.351,
    "s": 36.842,
    "l": 40.98
  },
  "oklch": {
    "l": 0.5846,
    "c": 0.12388,
    "h": 147
  },
  "luminance": 0.21353
}

Semantic roles & 50–950 ramp

primary

#428F4E

secondary

#B17BA9

accent

#5BBBCD

background

#F7FAF7

surface

#EEF5EE

border

#C9CFC9

text

#0A100A

muted

#7C7F7C

Preview Lab

Preview with #428F4E

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

Preview Lab → · Contrast checker → · Palette generator →