#428D3F#428D3F

#428D3F is a mid, vivid green. Relative luminance 0.206; OKLCH L 57.7% C 0.136 H 142.9°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#428D3F
RGB	rgb(66, 141, 63)
HSL	hsl(118, 38%, 40%)
HSV	hsv(118, 55%, 55%)
CMYK	cmyk(53.2%, 0%, 55.3%, 44.7%)
CIE-LAB	lab(52.47, -39.73, 34.27)
CIE-LCH	lch(52.47, 52.47, 139.22°)
OKLab	oklab(57.68% -0.1081 0.0818)
OKLCH	oklch(57.68% 0.136 142.9)
XYZ	xyz(12.6682, 20.5659, 8.0037)
Luminance	0.2057 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428D3F #8A3F8D

analogous

#698D3F #428D3F #3F8D63

triadic

#428D3F #3F428D #8D3F42

tetradic

#428D3F #3F698D #8A3F8D #8D633F

square

#428D3F #3F698D #8A3F8D #8D633F

split-complementary

#428D3F #633F8D #8D3F69

monochromatic

#1A3819 #2E632C #428D3F #59B356 #83C680

Accessibility & contrast

On white

4.11

#428D3F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#428D3F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428D3F

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428D3F	#FFFFFF	#000000	##000000
##428D3F	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#908138

Deuteranopia (green-blind)

#867B45

Tritanopia (blue-blind)

#38897B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #428d3f;
/* rgb */ color: rgb(66, 141, 63);
/* oklch */ color: oklch(57.7% 0.136 142.9);

Tailwind

colors: {
  custom: {
    50: '#7daf76',
    500: '#428d3f',
    950: '#000000',
  },
}

SCSS

$custom: #428d3f;
$custom-light: #7daf76;
$custom-dark: #000000;

JSON

{
  "hex": "#428d3f",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 63
  },
  "hsl": {
    "h": 117.692,
    "s": 38.235,
    "l": 40
  },
  "oklch": {
    "l": 0.57684,
    "c": 0.13563,
    "h": 142.9
  },
  "luminance": 0.20567
}

Semantic roles & 50–950 ramp

primary

#428D3F

secondary

#AE77B1

accent

#5ACECA

background

#F7FAF7

surface

#EEF4ED

border

#C9CEC8

text

#0A1008

muted

#7C7F7B

Preview Lab

Preview with #428D3F

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

Preview Lab → · Contrast checker → · Palette generator →