#428318#428318

#428318 is a mid, vivid yellow-green. Relative luminance 0.175; OKLCH L 54.6% C 0.151 H 136.4°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#428318
RGB	rgb(66, 131, 24)
HSL	hsl(96, 69%, 30%)
HSV	hsv(96, 82%, 51%)
CMYK	cmyk(49.6%, 0%, 81.7%, 48.6%)
CIE-LAB	lab(48.83, -39.32, 47.12)
CIE-LCH	lch(48.83, 61.37, 129.84°)
OKLab	oklab(54.58% -0.1095 0.1044)
OKLCH	oklch(54.58% 0.151 136.4)
XYZ	xyz(10.5276, 17.4561, 3.6786)
Luminance	0.1746 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428318 #591883

analogous

#778318 #428318 #188324

triadic

#428318 #184283 #831842

tetradic

#428318 #187783 #591883 #832418

square

#428318 #187783 #591883 #832418

split-complementary

#428318 #241883 #831877

monochromatic

#0E1C05 #284F0F #428318 #5CB721 #79DB3A

Accessibility & contrast

On white

4.68

#428318 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#428318 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #428318

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428318	#FFFFFF	#000000	##FFFFFF
##428318	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#887700

Deuteranopia (green-blind)

#7F7224

Tritanopia (blue-blind)

#3F7E6F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #428318;
/* rgb */ color: rgb(66, 131, 24);
/* oklch */ color: oklch(54.6% 0.151 136.4);

Tailwind

colors: {
  custom: {
    50: '#7da75f',
    500: '#428318',
    950: '#000000',
  },
}

SCSS

$custom: #428318;
$custom-light: #7da75f;
$custom-dark: #000000;

JSON

{
  "hex": "#428318",
  "rgb": {
    "r": 66,
    "g": 131,
    "b": 24
  },
  "hsl": {
    "h": 96.449,
    "s": 69.032,
    "l": 30.392
  },
  "oklch": {
    "l": 0.54582,
    "c": 0.1513,
    "h": 136.4
  },
  "luminance": 0.17457
}

Semantic roles & 50–950 ramp

primary

#428318

secondary

#8840B7

accent

#3CECA7

background

#F8FAF5

surface

#EFF4EA

border

#CACEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #428318

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

Preview Lab → · Contrast checker → · Palette generator →