#428418#428418

#428418 is a mid, vivid yellow-green. Relative luminance 0.177; OKLCH L 54.9% C 0.153 H 136.5°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#428418
RGB	rgb(66, 132, 24)
HSL	hsl(97, 69%, 31%)
HSV	hsv(97, 82%, 52%)
CMYK	cmyk(50%, 0%, 81.8%, 48.2%)
CIE-LAB	lab(49.16, -39.73, 47.43)
CIE-LCH	lch(49.16, 61.87, 129.95°)
OKLab	oklab(54.86% -0.1106 0.1051)
OKLCH	oklch(54.86% 0.153 136.5)
XYZ	xyz(10.6626, 17.7260, 3.7236)
Luminance	0.1773 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428418 #5A1884

analogous

#788418 #428418 #188424

triadic

#428418 #184284 #841842

tetradic

#428418 #187884 #5A1884 #842418

square

#428418 #187884 #5A1884 #842418

split-complementary

#428418 #241884 #841878

monochromatic

#0E1C05 #28500F #428418 #5CB821 #79DB3B

Accessibility & contrast

On white

4.62

#428418 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#428418 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #428418

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428418	#FFFFFF	#000000	##FFFFFF
##428418	1.00	4.62	4.55	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#897800

Deuteranopia (green-blind)

#807325

Tritanopia (blue-blind)

#3F7F70

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #428418;
/* rgb */ color: rgb(66, 132, 24);
/* oklch */ color: oklch(54.9% 0.153 136.5);

Tailwind

colors: {
  custom: {
    50: '#7da85f',
    500: '#428418',
    950: '#000000',
  },
}

SCSS

$custom: #428418;
$custom-light: #7da85f;
$custom-dark: #000000;

JSON

{
  "hex": "#428418",
  "rgb": {
    "r": 66,
    "g": 132,
    "b": 24
  },
  "hsl": {
    "h": 96.667,
    "s": 69.231,
    "l": 30.588
  },
  "oklch": {
    "l": 0.54855,
    "c": 0.15255,
    "h": 136.5
  },
  "luminance": 0.17727
}

Semantic roles & 50–950 ramp

primary

#428418

secondary

#8940B8

accent

#3CECA7

background

#F8FAF5

surface

#EFF4EA

border

#CACEC6

text

#0A1005

muted

#7C7F79

Preview Lab

Preview with #428418

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

Preview Lab → · Contrast checker → · Palette generator →