#428B1F#428B1F

#428B1F is a mid, vivid green. Relative luminance 0.197; OKLCH L 56.8% C 0.158 H 137.7°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#428B1F
RGB	rgb(66, 139, 31)
HSL	hsl(101, 64%, 33%)
HSV	hsv(101, 78%, 55%)
CMYK	cmyk(52.5%, 0%, 77.7%, 45.5%)
CIE-LAB	lab(51.52, -42.13, 47.34)
CIE-LCH	lch(51.52, 63.37, 131.66°)
OKLab	oklab(56.81% -0.1166 0.1059)
OKLCH	oklch(56.81% 0.158 137.7)
XYZ	xyz(11.7263, 19.7215, 4.4848)
Luminance	0.1972 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428B1F #681F8B

analogous

#788B1F #428B1F #1F8B32

triadic

#428B1F #1F428B #8B1F42

tetradic

#428B1F #1F788B #681F8B #8B321F

square

#428B1F #1F788B #681F8B #8B321F

split-complementary

#428B1F #321F8B #8B1F78

monochromatic

#122709 #2A5914 #428B1F #5ABD2A #7AD74D

Accessibility & contrast

On white

4.25

#428B1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#428B1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428B1F

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428B1F	#FFFFFF	#000000	##000000
##428B1F	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#907F06

Deuteranopia (green-blind)

#86792B

Tritanopia (blue-blind)

#3D8677

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #428b1f;
/* rgb */ color: rgb(66, 139, 31);
/* oklch */ color: oklch(56.8% 0.158 137.7);

Tailwind

colors: {
  custom: {
    50: '#7ead63',
    500: '#428b1f',
    950: '#000000',
  },
}

SCSS

$custom: #428b1f;
$custom-light: #7ead63;
$custom-dark: #000000;

JSON

{
  "hex": "#428b1f",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 31
  },
  "hsl": {
    "h": 100.556,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.56809,
    "c": 0.15756,
    "h": 137.7
  },
  "luminance": 0.19722
}

Semantic roles & 50–950 ramp

primary

#428B1F

secondary

#964CBA

accent

#41E7B1

background

#F8FAF6

surface

#EFF4EB

border

#CACEC6

text

#0B1006

muted

#7C7F7A

Preview Lab

Preview with #428B1F

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

Preview Lab → · Contrast checker → · Palette generator →