#428C4F#428C4F

#428C4F is a mid, moderate green. Relative luminance 0.205; OKLCH L 57.7% C 0.118 H 147.6°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#428C4F
RGB	rgb(66, 140, 79)
HSL	hsl(131, 36%, 40%)
HSV	hsv(131, 53%, 55%)
CMYK	cmyk(52.9%, 0%, 43.6%, 45.1%)
CIE-LAB	lab(52.37, -36.86, 25.70)
CIE-LCH	lch(52.37, 44.94, 145.11°)
OKLab	oklab(57.68% -0.1 0.0634)
OKLCH	oklch(57.68% 0.118 147.6)
XYZ	xyz(13.0353, 20.4779, 10.6613)
Luminance	0.2048 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428C4F #8C427F

analogous

#5A8C42 #428C4F #428C74

triadic

#428C4F #4F428C #8C4F42

tetradic

#428C4F #425A8C #8C427F #8C7442

square

#428C4F #425A8C #8C427F #8C7442

split-complementary

#428C4F #74428C #8C425A

monochromatic

#1B3920 #2E6238 #428C4F #5AB169 #84C58F

Accessibility & contrast

On white

4.12

#428C4F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#428C4F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428C4F

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428C4F	#FFFFFF	#000000	##000000
##428C4F	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D814B

Deuteranopia (green-blind)

#837A53

Tritanopia (blue-blind)

#34897D

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #428c4f;
/* rgb */ color: rgb(66, 140, 79);
/* oklch */ color: oklch(57.7% 0.118 147.6);

Tailwind

colors: {
  custom: {
    50: '#7cae81',
    500: '#428c4f',
    950: '#000000',
  },
}

SCSS

$custom: #428c4f;
$custom-light: #7cae81;
$custom-dark: #000000;

JSON

{
  "hex": "#428c4f",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 79
  },
  "hsl": {
    "h": 130.541,
    "s": 35.922,
    "l": 40.392
  },
  "oklch": {
    "l": 0.57679,
    "c": 0.11837,
    "h": 147.6
  },
  "luminance": 0.20479
}

Semantic roles & 50–950 ramp

primary

#428C4F

secondary

#B07AA6

accent

#5CB8CC

background

#F7FAF7

surface

#EEF4EE

border

#C9CEC9

text

#0A100A

muted

#7C7F7C

Preview Lab

Preview with #428C4F

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

Preview Lab → · Contrast checker → · Palette generator →