#428818#428818

#428818 is a mid, vivid yellow-green. Relative luminance 0.188; OKLCH L 55.9% C 0.157 H 136.9°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#428818
RGB	rgb(66, 136, 24)
HSL	hsl(98, 70%, 31%)
HSV	hsv(98, 82%, 53%)
CMYK	cmyk(51.5%, 0%, 82.4%, 46.7%)
CIE-LAB	lab(50.49, -41.35, 48.67)
CIE-LCH	lch(50.49, 63.86, 130.35°)
OKLab	oklab(55.95% -0.115 0.1076)
OKLCH	oklch(55.95% 0.157 136.9)
XYZ	xyz(11.2155, 18.8317, 3.9079)
Luminance	0.1883 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428818 #5E1888

analogous

#7A8818 #428818 #188826

triadic

#428818 #184288 #881842

tetradic

#428818 #187A88 #5E1888 #882618

square

#428818 #187A88 #5E1888 #882618

split-complementary

#428818 #261888 #88187A

monochromatic

#102006 #29540F #428818 #5BBC21 #79DD3E

Accessibility & contrast

On white

4.41

#428818 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#428818 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428818

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428818	#FFFFFF	#000000	##000000
##428818	1.00	4.41	4.77	4.77
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7C00

Deuteranopia (green-blind)

#847625

Tritanopia (blue-blind)

#3E8374

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #428818;
/* rgb */ color: rgb(66, 136, 24);
/* oklch */ color: oklch(55.9% 0.157 136.9);

Tailwind

colors: {
  custom: {
    50: '#7eab60',
    500: '#428818',
    950: '#000000',
  },
}

SCSS

$custom: #428818;
$custom-light: #7eab60;
$custom-dark: #000000;

JSON

{
  "hex": "#428818",
  "rgb": {
    "r": 66,
    "g": 136,
    "b": 24
  },
  "hsl": {
    "h": 97.5,
    "s": 70,
    "l": 31.373
  },
  "oklch": {
    "l": 0.55948,
    "c": 0.15749,
    "h": 136.9
  },
  "luminance": 0.18833
}

Semantic roles & 50–950 ramp

primary

#428818

secondary

#8D40BC

accent

#3BEDAA

background

#F8FAF5

surface

#EFF4EA

border

#CACEC6

text

#0B1005

muted

#7C7F79

Preview Lab

Preview with #428818

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

Preview Lab → · Contrast checker → · Palette generator →