#428011#428011

#428011 is a mid, vivid yellow-green. Relative luminance 0.166; OKLCH L 53.7% C 0.151 H 135.5°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#428011
RGB	rgb(66, 128, 17)
HSL	hsl(94, 77%, 28%)
HSV	hsv(94, 87%, 50%)
CMYK	cmyk(48.4%, 0%, 86.7%, 49.8%)
CIE-LAB	lab(47.80, -38.43, 48.21)
CIE-LCH	lch(47.80, 61.65, 128.56°)
OKLab	oklab(53.72% -0.1075 0.1056)
OKLCH	oklch(53.72% 0.151 135.5)
XYZ	xyz(10.0669, 16.6364, 3.2109)
Luminance	0.1664 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428011 #4F1180

analogous

#798011 #428011 #118018

triadic

#428011 #114280 #801142

tetradic

#428011 #117980 #4F1180 #801811

square

#428011 #117980 #4F1180 #801811

split-complementary

#428011 #181180 #801179

monochromatic

#0E1B04 #264A0A #428011 #5EB618 #7BE329

Accessibility & contrast

On white

4.85

#428011 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#428011 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #428011

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428011	#FFFFFF	#000000	##FFFFFF
##428011	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#857500

Deuteranopia (green-blind)

#7D701F

Tritanopia (blue-blind)

#407B6C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #428011;
/* rgb */ color: rgb(66, 128, 17);
/* oklch */ color: oklch(53.7% 0.151 135.5);

Tailwind

colors: {
  custom: {
    50: '#7da55c',
    500: '#428011',
    950: '#000000',
  },
}

SCSS

$custom: #428011;
$custom-light: #7da55c;
$custom-dark: #000000;

JSON

{
  "hex": "#428011",
  "rgb": {
    "r": 66,
    "g": 128,
    "b": 17
  },
  "hsl": {
    "h": 93.514,
    "s": 76.552,
    "l": 28.431
  },
  "oklch": {
    "l": 0.53724,
    "c": 0.15072,
    "h": 135.5
  },
  "luminance": 0.16637
}

Semantic roles & 50–950 ramp

primary

#428011

secondary

#7E37B6

accent

#35F39F

background

#F8FAF5

surface

#EFF4E9

border

#CACEC5

text

#0A0F04

muted

#7C7F79

Preview Lab

Preview with #428011

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

Preview Lab → · Contrast checker → · Palette generator →