#428F40#428F40

#428F40 is a mid, vivid green. Relative luminance 0.212; OKLCH L 58.2% C 0.138 H 143.1°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#428F40
RGB	rgb(66, 143, 64)
HSL	hsl(118, 38%, 41%)
HSV	hsv(118, 55%, 56%)
CMYK	cmyk(53.8%, 0%, 55.2%, 43.9%)
CIE-LAB	lab(53.14, -40.43, 34.57)
CIE-LCH	lch(53.14, 53.19, 139.47°)
OKLab	oklab(58.24% -0.11 0.0826)
OKLCH	oklch(58.24% 0.138 143.1)
XYZ	xyz(12.9940, 21.1723, 8.2514)
Luminance	0.2117 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428F40 #8D408F

analogous

#698F40 #428F40 #408F65

triadic

#428F40 #40428F #8F4042

tetradic

#428F40 #40698F #8D408F #8F6540

square

#428F40 #40698F #8D408F #8F6540

split-complementary

#428F40 #65408F #8F4069

monochromatic

#1B3A1A #2E652D #428F40 #5AB458 #84C782

Accessibility & contrast

On white

4.01

#428F40 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#428F40 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428F40

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428F40	#FFFFFF	#000000	##000000
##428F40	1.00	4.01	5.23	5.23
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#928339

Deuteranopia (green-blind)

#887C46

Tritanopia (blue-blind)

#378B7D

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #428f40;
/* rgb */ color: rgb(66, 143, 64);
/* oklch */ color: oklch(58.2% 0.138 143.1);

Tailwind

colors: {
  custom: {
    50: '#7db077',
    500: '#428f40',
    950: '#000000',
  },
}

SCSS

$custom: #428f40;
$custom-light: #7db077;
$custom-dark: #000000;

JSON

{
  "hex": "#428f40",
  "rgb": {
    "r": 66,
    "g": 143,
    "b": 64
  },
  "hsl": {
    "h": 118.481,
    "s": 38.164,
    "l": 40.588
  },
  "oklch": {
    "l": 0.58236,
    "c": 0.13754,
    "h": 143.1
  },
  "luminance": 0.21173
}

Semantic roles & 50–950 ramp

primary

#428F40

secondary

#B079B2

accent

#5ACECB

background

#F7FAF7

surface

#EEF5ED

border

#C9CFC8

text

#0A1109

muted

#7C807B

Preview Lab

Preview with #428F40

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

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