#428B33#428B33

#428B33 is a mid, vivid green. Relative luminance 0.199; OKLCH L 57.0% C 0.143 H 140.4°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#428B33
RGB	rgb(66, 139, 51)
HSL	hsl(110, 46%, 37%)
HSV	hsv(110, 63%, 55%)
CMYK	cmyk(52.5%, 0%, 63.3%, 45.5%)
CIE-LAB	lab(51.68, -40.36, 39.22)
CIE-LCH	lch(51.68, 56.28, 135.82°)
OKLab	oklab(56.99% -0.1105 0.0915)
OKLCH	oklch(56.99% 0.143 140.4)
XYZ	xyz(12.0764, 19.8616, 6.3286)
Luminance	0.1986 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428B33 #7C338B

analogous

#6E8B33 #428B33 #338B50

triadic

#428B33 #33428B #8B3342

tetradic

#428B33 #336E8B #7C338B #8B5033

square

#428B33 #336E8B #7C338B #8B5033

split-complementary

#428B33 #50338B #8B336E

monochromatic

#173112 #2D5E23 #428B33 #57B843 #7ECA6E

Accessibility & contrast

On white

4.22

#428B33 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#428B33 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428B33

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428B33	#FFFFFF	#000000	##000000
##428B33	1.00	4.22	4.97	4.97
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7F29

Deuteranopia (green-blind)

#85793A

Tritanopia (blue-blind)

#3A8778

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #428b33;
/* rgb */ color: rgb(66, 139, 51);
/* oklch */ color: oklch(57.0% 0.143 140.4);

Tailwind

colors: {
  custom: {
    50: '#7dad6e',
    500: '#428b33',
    950: '#000000',
  },
}

SCSS

$custom: #428b33;
$custom-light: #7dad6e;
$custom-dark: #000000;

JSON

{
  "hex": "#428b33",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 51
  },
  "hsl": {
    "h": 109.773,
    "s": 46.316,
    "l": 37.255
  },
  "oklch": {
    "l": 0.56991,
    "c": 0.14347,
    "h": 140.4
  },
  "luminance": 0.19863
}

Semantic roles & 50–950 ramp

primary

#428B33

secondary

#A568B2

accent

#52D6BF

background

#F7FAF6

surface

#EEF4EC

border

#C9CEC7

text

#0A1007

muted

#7C7F7A

Preview Lab

Preview with #428B33

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

Preview Lab → · Contrast checker → · Palette generator →