#428C3D#428C3D

#428C3D is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.4% C 0.136 H 142.4°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#428C3D
RGB	rgb(66, 140, 61)
HSL	hsl(116, 39%, 39%)
HSV	hsv(116, 56%, 55%)
CMYK	cmyk(52.9%, 0%, 56.4%, 45.1%)
CIE-LAB	lab(52.12, -39.58, 34.86)
CIE-LCH	lch(52.12, 52.74, 138.62°)
OKLab	oklab(57.39% -0.1078 0.083)
OKLCH	oklch(57.39% 0.136 142.4)
XYZ	xyz(12.4665, 20.2504, 7.6658)
Luminance	0.2025 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428C3D #873D8C

analogous

#698C3D #428C3D #3D8C60

triadic

#428C3D #3D428C #8C3D42

tetradic

#428C3D #3D698C #873D8C #8C603D

square

#428C3D #3D698C #873D8C #8C603D

split-complementary

#428C3D #603D8C #8C3D69

monochromatic

#1A3718 #2E612A #428C3D #59B452 #82C67D

Accessibility & contrast

On white

4.16

#428C3D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#428C3D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428C3D

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428C3D	#FFFFFF	#000000	##000000
##428C3D	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F8036

Deuteranopia (green-blind)

#857A43

Tritanopia (blue-blind)

#38887A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428c3d;
/* rgb */ color: rgb(66, 140, 61);
/* oklch */ color: oklch(57.4% 0.136 142.4);

Tailwind

colors: {
  custom: {
    50: '#7dae75',
    500: '#428c3d',
    950: '#000000',
  },
}

SCSS

$custom: #428c3d;
$custom-light: #7dae75;
$custom-dark: #000000;

JSON

{
  "hex": "#428c3d",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 61
  },
  "hsl": {
    "h": 116.203,
    "s": 39.303,
    "l": 39.412
  },
  "oklch": {
    "l": 0.57388,
    "c": 0.13606,
    "h": 142.4
  },
  "luminance": 0.20251
}

Semantic roles & 50–950 ramp

primary

#428C3D

secondary

#AC75B0

accent

#59CFC8

background

#F7FAF7

surface

#EEF4ED

border

#C9CEC8

text

#0A1008

muted

#7C7F7B

Preview Lab

Preview with #428C3D

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

Preview Lab → · Contrast checker → · Palette generator →