#428A28#428A28

#428A28 is a mid, vivid green. Relative luminance 0.195; OKLCH L 56.6% C 0.151 H 138.7°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#428A28
RGB	rgb(66, 138, 40)
HSL	hsl(104, 55%, 35%)
HSV	hsv(104, 71%, 54%)
CMYK	cmyk(52.2%, 0%, 71%, 45.9%)
CIE-LAB	lab(51.25, -41.03, 43.62)
CIE-LCH	lch(51.25, 59.88, 133.25°)
OKLab	oklab(56.61% -0.1131 0.0994)
OKLCH	oklch(56.61% 0.151 138.7)
XYZ	xyz(11.7178, 19.4875, 5.1511)
Luminance	0.1949 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428A28 #70288A

analogous

#738A28 #428A28 #288A3F

triadic

#428A28 #28428A #8A2842

tetradic

#428A28 #28738A #70288A #8A3F28

square

#428A28 #28738A #70288A #8A3F28

split-complementary

#428A28 #3F288A #8A2873

monochromatic

#152B0C #2B5B1A #428A28 #59B936 #7BD05D

Accessibility & contrast

On white

4.29

#428A28 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#428A28 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428A28

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428A28	#FFFFFF	#000000	##000000
##428A28	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E7E19

Deuteranopia (green-blind)

#857831

Tritanopia (blue-blind)

#3C8576

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #428a28;
/* rgb */ color: rgb(66, 138, 40);
/* oklch */ color: oklch(56.6% 0.151 138.7);

Tailwind

colors: {
  custom: {
    50: '#7ead68',
    500: '#428a28',
    950: '#000000',
  },
}

SCSS

$custom: #428a28;
$custom-light: #7ead68;
$custom-dark: #000000;

JSON

{
  "hex": "#428a28",
  "rgb": {
    "r": 66,
    "g": 138,
    "b": 40
  },
  "hsl": {
    "h": 104.082,
    "s": 55.056,
    "l": 34.902
  },
  "oklch": {
    "l": 0.56608,
    "c": 0.15058,
    "h": 138.7
  },
  "luminance": 0.19488
}

Semantic roles & 50–950 ramp

primary

#428A28

secondary

#9D59B5

accent

#49DEB7

background

#F8FAF6

surface

#EFF4EB

border

#CACEC6

text

#0A1006

muted

#7C7F7A

Preview Lab

Preview with #428A28

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

Preview Lab → · Contrast checker → · Palette generator →