#428F1C#428F1C

#428F1C is a mid, vivid green. Relative luminance 0.209; OKLCH L 57.9% C 0.164 H 137.8°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#428F1C
RGB	rgb(66, 143, 28)
HSL	hsl(100, 67%, 34%)
HSV	hsv(100, 80%, 56%)
CMYK	cmyk(53.8%, 0%, 80.4%, 43.9%)
CIE-LAB	lab(52.82, -43.90, 49.60)
CIE-LCH	lch(52.82, 66.24, 131.51°)
OKLab	oklab(57.88% -0.1216 0.1102)
OKLCH	oklch(57.88% 0.164 137.8)
XYZ	xyz(12.2784, 20.8861, 4.4828)
Luminance	0.2089 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428F1C #691C8F

analogous

#7B8F1C #428F1C #1C8F2F

triadic

#428F1C #1C428F #8F1C42

tetradic

#428F1C #1C7B8F #691C8F #8F2F1C

square

#428F1C #1C7B8F #691C8F #8F2F1C

split-complementary

#428F1C #2F1C8F #8F1C7B

monochromatic

#132908 #2A5C12 #428F1C #5AC226 #7ADC4A

Accessibility & contrast

On white

4.06

#428F1C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#428F1C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428F1C

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428F1C	#FFFFFF	#000000	##000000
##428F1C	1.00	4.06	5.18	5.18
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#948200

Deuteranopia (green-blind)

#8A7C29

Tritanopia (blue-blind)

#3C8A7A

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #428f1c;
/* rgb */ color: rgb(66, 143, 28);
/* oklch */ color: oklch(57.9% 0.164 137.8);

Tailwind

colors: {
  custom: {
    50: '#7fb062',
    500: '#428f1c',
    950: '#000000',
  },
}

SCSS

$custom: #428f1c;
$custom-light: #7fb062;
$custom-dark: #000000;

JSON

{
  "hex": "#428f1c",
  "rgb": {
    "r": 66,
    "g": 143,
    "b": 28
  },
  "hsl": {
    "h": 100.174,
    "s": 67.251,
    "l": 33.529
  },
  "oklch": {
    "l": 0.57878,
    "c": 0.1641,
    "h": 137.8
  },
  "luminance": 0.20887
}

Semantic roles & 50–950 ramp

primary

#428F1C

secondary

#9749BE

accent

#3EEAB1

background

#F8FAF6

surface

#EFF5EB

border

#CACFC6

text

#0B1106

muted

#7C807A

Preview Lab

Preview with #428F1C

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

Preview Lab → · Contrast checker → · Palette generator →