#428C1F#428C1F

#428C1F is a mid, vivid green. Relative luminance 0.200; OKLCH L 57.1% C 0.159 H 137.8°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#428C1F
RGB	rgb(66, 140, 31)
HSL	hsl(101, 64%, 34%)
HSV	hsv(101, 78%, 55%)
CMYK	cmyk(52.9%, 0%, 77.9%, 45.1%)
CIE-LAB	lab(51.85, -42.53, 47.67)
CIE-LCH	lch(51.85, 63.88, 131.74°)
OKLab	oklab(57.08% -0.1177 0.1066)
OKLCH	oklch(57.08% 0.159 137.8)
XYZ	xyz(11.8718, 20.0125, 4.5333)
Luminance	0.2001 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428C1F #691F8C

analogous

#788C1F #428C1F #1F8C32

triadic

#428C1F #1F428C #8C1F42

tetradic

#428C1F #1F788C #691F8C #8C321F

square

#428C1F #1F788C #691F8C #8C321F

split-complementary

#428C1F #321F8C #8C1F78

monochromatic

#132809 #2A5A14 #428C1F #5ABE2A #7AD84E

Accessibility & contrast

On white

4.20

#428C1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#428C1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428C1F

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428C1F	#FFFFFF	#000000	##000000
##428C1F	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#917F05

Deuteranopia (green-blind)

#87792B

Tritanopia (blue-blind)

#3C8777

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428c1f;
/* rgb */ color: rgb(66, 140, 31);
/* oklch */ color: oklch(57.1% 0.159 137.8);

Tailwind

colors: {
  custom: {
    50: '#7eae63',
    500: '#428c1f',
    950: '#000000',
  },
}

SCSS

$custom: #428c1f;
$custom-light: #7eae63;
$custom-dark: #000000;

JSON

{
  "hex": "#428c1f",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 31
  },
  "hsl": {
    "h": 100.734,
    "s": 63.743,
    "l": 33.529
  },
  "oklch": {
    "l": 0.57081,
    "c": 0.15881,
    "h": 137.8
  },
  "luminance": 0.20013
}

Semantic roles & 50–950 ramp

primary

#428C1F

secondary

#974CBB

accent

#41E7B2

background

#F8FAF6

surface

#EFF4EB

border

#CACEC6

text

#0B1006

muted

#7C7F7A

Preview Lab

Preview with #428C1F

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

Preview Lab → · Contrast checker → · Palette generator →