#428618#428618

#428618 is a mid, vivid yellow-green. Relative luminance 0.183; OKLCH L 55.4% C 0.155 H 136.7°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#428618
RGB	rgb(66, 134, 24)
HSL	hsl(97, 70%, 31%)
HSV	hsv(97, 82%, 53%)
CMYK	cmyk(50.7%, 0%, 82.1%, 47.5%)
CIE-LAB	lab(49.83, -40.54, 48.05)
CIE-LCH	lch(49.83, 62.87, 130.16°)
OKLab	oklab(55.4% -0.1128 0.1064)
OKLCH	oklch(55.4% 0.155 136.7)
XYZ	xyz(10.9364, 18.2736, 3.8149)
Luminance	0.1827 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428618 #5C1886

analogous

#798618 #428618 #188625

triadic

#428618 #184286 #861842

tetradic

#428618 #187986 #5C1886 #862518

square

#428618 #187986 #5C1886 #862518

split-complementary

#428618 #251886 #861879

monochromatic

#0F1E05 #28520F #428618 #5CBA21 #79DC3C

Accessibility & contrast

On white

4.51

#428618 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#428618 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428618

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428618	#FFFFFF	#000000	##000000
##428618	1.00	4.51	4.65	4.65
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B7A00

Deuteranopia (green-blind)

#827425

Tritanopia (blue-blind)

#3E8172

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #428618;
/* rgb */ color: rgb(66, 134, 24);
/* oklch */ color: oklch(55.4% 0.155 136.7);

Tailwind

colors: {
  custom: {
    50: '#7eaa5f',
    500: '#428618',
    950: '#000000',
  },
}

SCSS

$custom: #428618;
$custom-light: #7eaa5f;
$custom-dark: #000000;

JSON

{
  "hex": "#428618",
  "rgb": {
    "r": 66,
    "g": 134,
    "b": 24
  },
  "hsl": {
    "h": 97.091,
    "s": 69.62,
    "l": 30.98
  },
  "oklch": {
    "l": 0.55402,
    "c": 0.15503,
    "h": 136.7
  },
  "luminance": 0.18274
}

Semantic roles & 50–950 ramp

primary

#428618

secondary

#8B40BA

accent

#3BECA9

background

#F8FAF5

surface

#EFF4EA

border

#CACEC6

text

#0B1005

muted

#7C7F79

Preview Lab

Preview with #428618

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

Preview Lab → · Contrast checker → · Palette generator →