#428C4E#428C4E

#428C4E is a mid, moderate green. Relative luminance 0.205; OKLCH L 57.7% C 0.119 H 147.3°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#428C4E
RGB	rgb(66, 140, 78)
HSL	hsl(130, 36%, 40%)
HSV	hsv(130, 53%, 55%)
CMYK	cmyk(52.9%, 0%, 44.3%, 45.1%)
CIE-LAB	lab(52.36, -37.03, 26.23)
CIE-LCH	lch(52.36, 45.38, 144.69°)
OKLab	oklab(57.66% -0.1004 0.0645)
OKLCH	oklch(57.66% 0.119 147.3)
XYZ	xyz(12.9992, 20.4634, 10.4711)
Luminance	0.2046 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428C4E #8C4280

analogous

#5B8C42 #428C4E #428C73

triadic

#428C4E #4E428C #8C4E42

tetradic

#428C4E #425B8C #8C4280 #8C7342

square

#428C4E #425B8C #8C4280 #8C7342

split-complementary

#428C4E #73428C #8C425B

monochromatic

#1B3920 #2E6237 #428C4E #5AB168 #84C58E

Accessibility & contrast

On white

4.12

#428C4E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#428C4E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428C4E

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428C4E	#FFFFFF	#000000	##000000
##428C4E	1.00	4.12	5.09	5.09
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E8149

Deuteranopia (green-blind)

#837A52

Tritanopia (blue-blind)

#34897D

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #428c4e;
/* rgb */ color: rgb(66, 140, 78);
/* oklch */ color: oklch(57.7% 0.119 147.3);

Tailwind

colors: {
  custom: {
    50: '#7cae80',
    500: '#428c4e',
    950: '#000000',
  },
}

SCSS

$custom: #428c4e;
$custom-light: #7cae80;
$custom-dark: #000000;

JSON

{
  "hex": "#428c4e",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 78
  },
  "hsl": {
    "h": 129.73,
    "s": 35.922,
    "l": 40.392
  },
  "oklch": {
    "l": 0.5766,
    "c": 0.11939,
    "h": 147.3
  },
  "luminance": 0.20464
}

Semantic roles & 50–950 ramp

primary

#428C4E

secondary

#B07AA7

accent

#5CBACC

background

#F7FAF7

surface

#EEF4EE

border

#C9CEC9

text

#0A100A

muted

#7C7F7C

Preview Lab

Preview with #428C4E

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

Preview Lab → · Contrast checker → · Palette generator →