#428518#428518

#428518 is a mid, vivid yellow-green. Relative luminance 0.180; OKLCH L 55.1% C 0.154 H 136.6°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#428518
RGB	rgb(66, 133, 24)
HSL	hsl(97, 69%, 31%)
HSV	hsv(97, 82%, 52%)
CMYK	cmyk(50.4%, 0%, 82%, 47.8%)
CIE-LAB	lab(49.49, -40.13, 47.74)
CIE-LCH	lch(49.49, 62.37, 130.05°)
OKLab	oklab(55.13% -0.1117 0.1057)
OKLCH	oklch(55.13% 0.154 136.6)
XYZ	xyz(10.7989, 17.9985, 3.7690)
Luminance	0.1800 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428518 #5B1885

analogous

#788518 #428518 #188524

triadic

#428518 #184285 #851842

tetradic

#428518 #187885 #5B1885 #852418

square

#428518 #187885 #5B1885 #852418

split-complementary

#428518 #241885 #851878

monochromatic

#0F1D05 #28510F #428518 #5CB921 #79DC3C

Accessibility & contrast

On white

4.57

#428518 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#428518 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428518

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428518	#FFFFFF	#000000	##000000
##428518	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A7900

Deuteranopia (green-blind)

#817425

Tritanopia (blue-blind)

#3E8071

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #428518;
/* rgb */ color: rgb(66, 133, 24);
/* oklch */ color: oklch(55.1% 0.154 136.6);

Tailwind

colors: {
  custom: {
    50: '#7ea95f',
    500: '#428518',
    950: '#000000',
  },
}

SCSS

$custom: #428518;
$custom-light: #7ea95f;
$custom-dark: #000000;

JSON

{
  "hex": "#428518",
  "rgb": {
    "r": 66,
    "g": 133,
    "b": 24
  },
  "hsl": {
    "h": 96.881,
    "s": 69.427,
    "l": 30.784
  },
  "oklch": {
    "l": 0.55128,
    "c": 0.15379,
    "h": 136.6
  },
  "luminance": 0.17999
}

Semantic roles & 50–950 ramp

primary

#428518

secondary

#8A40B9

accent

#3CECA8

background

#F8FAF5

surface

#EFF4EA

border

#CACEC6

text

#0A1005

muted

#7C7F79

Preview Lab

Preview with #428518

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

Preview Lab → · Contrast checker → · Palette generator →