#428F28#428F28

#428F28 is a mid, vivid green. Relative luminance 0.210; OKLCH L 58.0% C 0.157 H 139.0°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#428F28
RGB	rgb(66, 143, 40)
HSL	hsl(105, 56%, 36%)
HSV	hsv(105, 72%, 56%)
CMYK	cmyk(53.8%, 0%, 72%, 43.9%)
CIE-LAB	lab(52.90, -43.04, 45.33)
CIE-LCH	lch(52.90, 62.51, 133.52°)
OKLab	oklab(57.97% -0.1185 0.103)
OKLCH	oklch(57.97% 0.157 139)
XYZ	xyz(12.4517, 20.9554, 5.3957)
Luminance	0.2096 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428F28 #75288F

analogous

#758F28 #428F28 #288F41

triadic

#428F28 #28428F #8F2842

tetradic

#428F28 #28758F #75288F #8F4128

square

#428F28 #28758F #75288F #8F4128

split-complementary

#428F28 #41288F #8F2875

monochromatic

#162F0D #2C5F1B #428F28 #58BF35 #7CD25F

Accessibility & contrast

On white

4.05

#428F28 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#428F28 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428F28

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428F28	#FFFFFF	#000000	##000000
##428F28	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#938218

Deuteranopia (green-blind)

#897C32

Tritanopia (blue-blind)

#3B8A7B

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #428f28;
/* rgb */ color: rgb(66, 143, 40);
/* oklch */ color: oklch(58.0% 0.157 139.0);

Tailwind

colors: {
  custom: {
    50: '#7eb068',
    500: '#428f28',
    950: '#000000',
  },
}

SCSS

$custom: #428f28;
$custom-light: #7eb068;
$custom-dark: #000000;

JSON

{
  "hex": "#428f28",
  "rgb": {
    "r": 66,
    "g": 143,
    "b": 40
  },
  "hsl": {
    "h": 104.854,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.57965,
    "c": 0.15704,
    "h": 139
  },
  "luminance": 0.20956
}

Semantic roles & 50–950 ramp

primary

#428F28

secondary

#A05BB8

accent

#48E0B9

background

#F8FAF6

surface

#EFF5EB

border

#CACFC6

text

#0B1106

muted

#7C807A

Preview Lab

Preview with #428F28

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

Preview Lab → · Contrast checker → · Palette generator →