#428B28#428B28

#428B28 is a mid, vivid green. Relative luminance 0.198; OKLCH L 56.9% C 0.152 H 138.7°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#428B28
RGB	rgb(66, 139, 40)
HSL	hsl(104, 55%, 35%)
HSV	hsv(104, 71%, 55%)
CMYK	cmyk(52.5%, 0%, 71.2%, 45.5%)
CIE-LAB	lab(51.58, -41.44, 43.96)
CIE-LCH	lch(51.58, 60.41, 133.31°)
OKLab	oklab(56.88% -0.1142 0.1002)
OKLCH	oklch(56.88% 0.152 138.7)
XYZ	xyz(11.8619, 19.7758, 5.1991)
Luminance	0.1978 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428B28 #71288B

analogous

#748B28 #428B28 #288B3F

triadic

#428B28 #28428B #8B2842

tetradic

#428B28 #28748B #71288B #8B3F28

square

#428B28 #28748B #71288B #8B3F28

split-complementary

#428B28 #3F288B #8B2874

monochromatic

#152C0D #2B5B1A #428B28 #59BB36 #7BD05D

Accessibility & contrast

On white

4.24

#428B28 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#428B28 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428B28

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428B28	#FFFFFF	#000000	##000000
##428B28	1.00	4.24	4.96	4.96
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7F19

Deuteranopia (green-blind)

#867931

Tritanopia (blue-blind)

#3C8677

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #428b28;
/* rgb */ color: rgb(66, 139, 40);
/* oklch */ color: oklch(56.9% 0.152 138.7);

Tailwind

colors: {
  custom: {
    50: '#7ead68',
    500: '#428b28',
    950: '#000000',
  },
}

SCSS

$custom: #428b28;
$custom-light: #7ead68;
$custom-dark: #000000;

JSON

{
  "hex": "#428b28",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 40
  },
  "hsl": {
    "h": 104.242,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.5688,
    "c": 0.15189,
    "h": 138.7
  },
  "luminance": 0.19777
}

Semantic roles & 50–950 ramp

primary

#428B28

secondary

#9D59B6

accent

#49DFB7

background

#F8FAF6

surface

#EFF4EB

border

#CACEC6

text

#0A1006

muted

#7C7F7A

Preview Lab

Preview with #428B28

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

Preview Lab → · Contrast checker → · Palette generator →