#428D1F#428D1F

#428D1F is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.4% C 0.160 H 137.9°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#428D1F
RGB	rgb(66, 141, 31)
HSL	hsl(101, 64%, 34%)
HSV	hsv(101, 78%, 55%)
CMYK	cmyk(53.2%, 0%, 78%, 44.7%)
CIE-LAB	lab(52.18, -42.92, 47.99)
CIE-LCH	lch(52.18, 64.38, 131.81°)
OKLab	oklab(57.35% -0.1188 0.1073)
OKLCH	oklch(57.35% 0.16 137.9)
XYZ	xyz(12.0186, 20.3060, 4.5822)
Luminance	0.2031 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428D1F #6A1F8D

analogous

#798D1F #428D1F #1F8D33

triadic

#428D1F #1F428D #8D1F42

tetradic

#428D1F #1F798D #6A1F8D #8D331F

square

#428D1F #1F798D #6A1F8D #8D331F

split-complementary

#428D1F #331F8D #8D1F79

monochromatic

#132909 #2B5B14 #428D1F #59BF2A #7AD84E

Accessibility & contrast

On white

4.15

#428D1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#428D1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428D1F

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428D1F	#FFFFFF	#000000	##000000
##428D1F	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#928005

Deuteranopia (green-blind)

#887A2B

Tritanopia (blue-blind)

#3C8878

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428d1f;
/* rgb */ color: rgb(66, 141, 31);
/* oklch */ color: oklch(57.4% 0.160 137.9);

Tailwind

colors: {
  custom: {
    50: '#7faf63',
    500: '#428d1f',
    950: '#000000',
  },
}

SCSS

$custom: #428d1f;
$custom-light: #7faf63;
$custom-dark: #000000;

JSON

{
  "hex": "#428d1f",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 31
  },
  "hsl": {
    "h": 100.909,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.57353,
    "c": 0.16006,
    "h": 137.9
  },
  "luminance": 0.20307
}

Semantic roles & 50–950 ramp

primary

#428D1F

secondary

#984DBB

accent

#41E7B2

background

#F8FAF6

surface

#EFF4EB

border

#CACEC6

text

#0B1006

muted

#7C7F7A

Preview Lab

Preview with #428D1F

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

Preview Lab → · Contrast checker → · Palette generator →