#428018#428018

#428018 is a mid, vivid yellow-green. Relative luminance 0.167; OKLCH L 53.8% C 0.148 H 136.0°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#428018
RGB	rgb(66, 128, 24)
HSL	hsl(96, 68%, 30%)
HSV	hsv(96, 81%, 50%)
CMYK	cmyk(48.4%, 0%, 81.3%, 49.8%)
CIE-LAB	lab(47.83, -38.07, 46.18)
CIE-LCH	lch(47.83, 59.85, 129.50°)
OKLab	oklab(53.76% -0.1062 0.1024)
OKLCH	oklch(53.76% 0.148 136)
XYZ	xyz(10.1305, 16.6619, 3.5462)
Luminance	0.1666 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428018 #561880

analogous

#768018 #428018 #188022

triadic

#428018 #184280 #801842

tetradic

#428018 #187680 #561880 #802218

square

#428018 #187680 #561880 #802218

split-complementary

#428018 #221880 #801876

monochromatic

#0D1A05 #274C0E #428018 #5DB422 #7ADA39

Accessibility & contrast

On white

4.85

#428018 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#428018 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #428018

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428018	#FFFFFF	#000000	##FFFFFF
##428018	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)

#7D7024

Tritanopia (blue-blind)

#3F7B6D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #428018;
/* rgb */ color: rgb(66, 128, 24);
/* oklch */ color: oklch(53.8% 0.148 136.0);

Tailwind

colors: {
  custom: {
    50: '#7da55e',
    500: '#428018',
    950: '#000000',
  },
}

SCSS

$custom: #428018;
$custom-light: #7da55e;
$custom-dark: #000000;

JSON

{
  "hex": "#428018",
  "rgb": {
    "r": 66,
    "g": 128,
    "b": 24
  },
  "hsl": {
    "h": 95.769,
    "s": 68.421,
    "l": 29.804
  },
  "oklch": {
    "l": 0.53761,
    "c": 0.14753,
    "h": 136
  },
  "luminance": 0.16663
}

Semantic roles & 50–950 ramp

primary

#428018

secondary

#8540B4

accent

#3DEBA5

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #428018

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

Preview Lab → · Contrast checker → · Palette generator →