#428D1C#428D1C

#428D1C is a mid, vivid yellow-green. Relative luminance 0.203; OKLCH L 57.3% C 0.162 H 137.7°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#428D1C
RGB	rgb(66, 141, 28)
HSL	hsl(100, 67%, 33%)
HSV	hsv(100, 80%, 55%)
CMYK	cmyk(53.2%, 0%, 80.1%, 44.7%)
CIE-LAB	lab(52.16, -43.11, 48.98)
CIE-LCH	lch(52.16, 65.25, 131.36°)
OKLab	oklab(57.33% -0.1195 0.1089)
OKLCH	oklch(57.33% 0.162 137.7)
XYZ	xyz(11.9808, 20.2909, 4.3836)
Luminance	0.2029 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428D1C #671C8D

analogous

#7A8D1C #428D1C #1C8D2E

triadic

#428D1C #1C428D #8D1C42

tetradic

#428D1C #1C7A8D #671C8D #8D2E1C

square

#428D1C #1C7A8D #671C8D #8D2E1C

split-complementary

#428D1C #2E1C8D #8D1C7A

monochromatic

#122708 #2A5A12 #428D1C #5AC026 #7ADB49

Accessibility & contrast

On white

4.15

#428D1C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#428D1C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428D1C

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428D1C	#FFFFFF	#000000	##000000
##428D1C	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)

#928000

Deuteranopia (green-blind)

#887A29

Tritanopia (blue-blind)

#3C8878

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428d1c;
/* rgb */ color: rgb(66, 141, 28);
/* oklch */ color: oklch(57.3% 0.162 137.7);

Tailwind

colors: {
  custom: {
    50: '#7faf62',
    500: '#428d1c',
    950: '#000000',
  },
}

SCSS

$custom: #428d1c;
$custom-light: #7faf62;
$custom-dark: #000000;

JSON

{
  "hex": "#428d1c",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 28
  },
  "hsl": {
    "h": 99.823,
    "s": 66.864,
    "l": 33.137
  },
  "oklch": {
    "l": 0.57334,
    "c": 0.16165,
    "h": 137.7
  },
  "luminance": 0.20292
}

Semantic roles & 50–950 ramp

primary

#428D1C

secondary

#9548BD

accent

#3EEAB0

background

#F8FAF6

surface

#EFF4EB

border

#CACEC6

text

#0B1006

muted

#7C7F7A

Preview Lab

Preview with #428D1C

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

Preview Lab → · Contrast checker → · Palette generator →