#428C4A#428C4A

#428C4A is a mid, vivid green. Relative luminance 0.204; OKLCH L 57.6% C 0.123 H 145.9°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#428C4A
RGB	rgb(66, 140, 74)
HSL	hsl(126, 36%, 40%)
HSV	hsv(126, 53%, 55%)
CMYK	cmyk(52.9%, 0%, 47.1%, 45.1%)
CIE-LAB	lab(52.30, -37.69, 28.31)
CIE-LCH	lch(52.30, 47.14, 143.09°)
OKLab	oklab(57.59% -0.1023 0.0692)
OKLCH	oklch(57.59% 0.123 145.9)
XYZ	xyz(12.8601, 20.4078, 9.7387)
Luminance	0.2041 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428C4A #8C4284

analogous

#5F8C42 #428C4A #428C6F

triadic

#428C4A #4A428C #8C4A42

tetradic

#428C4A #425F8C #8C4284 #8C6F42

square

#428C4A #425F8C #8C4284 #8C6F42

split-complementary

#428C4A #6F428C #8C425F

monochromatic

#1B391E #2E6234 #428C4A #5AB163 #84C58B

Accessibility & contrast

On white

4.13

#428C4A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#428C4A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428C4A

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428C4A	#FFFFFF	#000000	##000000
##428C4A	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E8145

Deuteranopia (green-blind)

#847A4E

Tritanopia (blue-blind)

#35897C

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #428c4a;
/* rgb */ color: rgb(66, 140, 74);
/* oklch */ color: oklch(57.6% 0.123 145.9);

Tailwind

colors: {
  custom: {
    50: '#7cae7d',
    500: '#428c4a',
    950: '#000000',
  },
}

SCSS

$custom: #428c4a;
$custom-light: #7cae7d;
$custom-dark: #000000;

JSON

{
  "hex": "#428c4a",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 74
  },
  "hsl": {
    "h": 126.486,
    "s": 35.922,
    "l": 40.392
  },
  "oklch": {
    "l": 0.57589,
    "c": 0.12345,
    "h": 145.9
  },
  "luminance": 0.20409
}

Semantic roles & 50–950 ramp

primary

#428C4A

secondary

#B07AAA

accent

#5CC0CC

background

#F7FAF7

surface

#EEF4EE

border

#C9CEC9

text

#0A100A

muted

#7C7F7C

Preview Lab

Preview with #428C4A

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

Preview Lab → · Contrast checker → · Palette generator →