#428A1F#428A1F

#428A1F is a mid, vivid green. Relative luminance 0.194; OKLCH L 56.5% C 0.156 H 137.7°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#428A1F
RGB	rgb(66, 138, 31)
HSL	hsl(100, 63%, 33%)
HSV	hsv(100, 78%, 54%)
CMYK	cmyk(52.2%, 0%, 77.5%, 45.9%)
CIE-LAB	lab(51.19, -41.73, 47.02)
CIE-LCH	lch(51.19, 62.87, 131.58°)
OKLab	oklab(56.54% -0.1156 0.1053)
OKLCH	oklch(56.54% 0.156 137.7)
XYZ	xyz(11.5822, 19.4333, 4.4367)
Luminance	0.1943 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428A1F #671F8A

analogous

#778A1F #428A1F #1F8A31

triadic

#428A1F #1F428A #8A1F42

tetradic

#428A1F #1F778A #671F8A #8A311F

square

#428A1F #1F778A #671F8A #8A311F

split-complementary

#428A1F #311F8A #8A1F77

monochromatic

#122609 #2A5814 #428A1F #5ABC2A #7AD74C

Accessibility & contrast

On white

4.30

#428A1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#428A1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428A1F

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428A1F	#FFFFFF	#000000	##000000
##428A1F	1.00	4.30	4.89	4.89
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7E07

Deuteranopia (green-blind)

#85782A

Tritanopia (blue-blind)

#3D8576

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #428a1f;
/* rgb */ color: rgb(66, 138, 31);
/* oklch */ color: oklch(56.5% 0.156 137.7);

Tailwind

colors: {
  custom: {
    50: '#7ead63',
    500: '#428a1f',
    950: '#000000',
  },
}

SCSS

$custom: #428a1f;
$custom-light: #7ead63;
$custom-dark: #000000;

JSON

{
  "hex": "#428a1f",
  "rgb": {
    "r": 66,
    "g": 138,
    "b": 31
  },
  "hsl": {
    "h": 100.374,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.56537,
    "c": 0.15632,
    "h": 137.7
  },
  "luminance": 0.19434
}

Semantic roles & 50–950 ramp

primary

#428A1F

secondary

#954BBA

accent

#41E6B0

background

#F8FAF6

surface

#EFF4EB

border

#CACEC6

text

#0B1006

muted

#7C7F7A

Preview Lab

Preview with #428A1F

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

Preview Lab → · Contrast checker → · Palette generator →