#428C13#428C13

#428C13 is a mid, vivid yellow-green. Relative luminance 0.200; OKLCH L 57.0% C 0.164 H 136.9°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#428C13
RGB	rgb(66, 140, 19)
HSL	hsl(97, 76%, 31%)
HSV	hsv(97, 86%, 55%)
CMYK	cmyk(52.9%, 0%, 86.4%, 45.1%)
CIE-LAB	lab(51.79, -43.19, 51.24)
CIE-LCH	lch(51.79, 67.01, 130.13°)
OKLab	oklab(57.01% -0.1202 0.1123)
OKLCH	oklch(57.01% 0.164 136.9)
XYZ	xyz(11.7420, 19.9606, 3.8500)
Luminance	0.1996 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428C13 #5D138C

analogous

#7E8C13 #428C13 #138C20

triadic

#428C13 #13428C #8C1342

tetradic

#428C13 #137E8C #5D138C #8C2013

square

#428C13 #137E8C #5D138C #8C2013

split-complementary

#428C13 #20138C #8C137E

monochromatic

#0F2004 #29560C #428C13 #5BC21A #79E436

Accessibility & contrast

On white

4.21

#428C13 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#428C13 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428C13

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428C13	#FFFFFF	#000000	##000000
##428C13	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#917F00

Deuteranopia (green-blind)

#877923

Tritanopia (blue-blind)

#3D8777

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #428c13;
/* rgb */ color: rgb(66, 140, 19);
/* oklch */ color: oklch(57.0% 0.164 136.9);

Tailwind

colors: {
  custom: {
    50: '#7fae5e',
    500: '#428c13',
    950: '#000000',
  },
}

SCSS

$custom: #428c13;
$custom-light: #7fae5e;
$custom-dark: #000000;

JSON

{
  "hex": "#428c13",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 19
  },
  "hsl": {
    "h": 96.694,
    "s": 76.101,
    "l": 31.176
  },
  "oklch": {
    "l": 0.57014,
    "c": 0.16447,
    "h": 136.9
  },
  "luminance": 0.19961
}

Semantic roles & 50–950 ramp

primary

#428C13

secondary

#8C3BC0

accent

#35F3A9

background

#F8FAF5

surface

#EFF4EA

border

#CACEC6

text

#0B1005

muted

#7C7F79

Preview Lab

Preview with #428C13

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

Preview Lab → · Contrast checker → · Palette generator →