#428F31#428F31

#428F31 is a mid, vivid green. Relative luminance 0.210; OKLCH L 58.1% C 0.150 H 140.2°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#428F31
RGB	rgb(66, 143, 49)
HSL	hsl(109, 49%, 38%)
HSV	hsv(109, 66%, 56%)
CMYK	cmyk(53.8%, 0%, 65.7%, 43.9%)
CIE-LAB	lab(52.98, -42.21, 41.58)
CIE-LCH	lch(52.98, 59.25, 135.43°)
OKLab	oklab(58.05% -0.1157 0.0963)
OKLCH	oklch(58.05% 0.15 140.2)
XYZ	xyz(12.6231, 21.0239, 6.2980)
Luminance	0.2102 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428F31 #7E318F

analogous

#718F31 #428F31 #318F4F

triadic

#428F31 #31428F #8F3142

tetradic

#428F31 #31718F #7E318F #8F4F31

square

#428F31 #31718F #7E318F #8F4F31

split-complementary

#428F31 #4F318F #8F3171

monochromatic

#183412 #2D6121 #428F31 #57BD41 #7FCD6D

Accessibility & contrast

On white

4.03

#428F31 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#428F31 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428F31

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428F31	#FFFFFF	#000000	##000000
##428F31	1.00	4.03	5.20	5.20
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#938325

Deuteranopia (green-blind)

#897C39

Tritanopia (blue-blind)

#3A8A7B

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #428f31;
/* rgb */ color: rgb(66, 143, 49);
/* oklch */ color: oklch(58.1% 0.150 140.2);

Tailwind

colors: {
  custom: {
    50: '#7eb06d',
    500: '#428f31',
    950: '#000000',
  },
}

SCSS

$custom: #428f31;
$custom-light: #7eb06d;
$custom-dark: #000000;

JSON

{
  "hex": "#428f31",
  "rgb": {
    "r": 66,
    "g": 143,
    "b": 49
  },
  "hsl": {
    "h": 109.149,
    "s": 48.958,
    "l": 37.647
  },
  "oklch": {
    "l": 0.5805,
    "c": 0.15048,
    "h": 140.2
  },
  "luminance": 0.21025
}

Semantic roles & 50–950 ramp

primary

#428F31

secondary

#A767B5

accent

#4FD9C0

background

#F8FAF6

surface

#EFF5EC

border

#CACFC7

text

#0A1107

muted

#7C807A

Preview Lab

Preview with #428F31

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

Preview Lab → · Contrast checker → · Palette generator →