#428A12#428A12

#428A12 is a mid, vivid yellow-green. Relative luminance 0.194; OKLCH L 56.5% C 0.162 H 136.7°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#428A12
RGB	rgb(66, 138, 18)
HSL	hsl(96, 77%, 31%)
HSV	hsv(96, 87%, 54%)
CMYK	cmyk(52.2%, 0%, 87%, 45.9%)
CIE-LAB	lab(51.13, -42.44, 50.90)
CIE-LCH	lch(51.13, 66.27, 129.82°)
OKLab	oklab(56.46% -0.1182 0.1115)
OKLCH	oklch(56.46% 0.162 136.7)
XYZ	xyz(11.4441, 19.3780, 3.7094)
Luminance	0.1938 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428A12 #5A128A

analogous

#7E8A12 #428A12 #128A1E

triadic

#428A12 #12428A #8A1242

tetradic

#428A12 #127E8A #5A128A #8A1E12

square

#428A12 #127E8A #5A128A #8A1E12

split-complementary

#428A12 #1E128A #8A127E

monochromatic

#0E1E04 #28540B #428A12 #5CC019 #79E432

Accessibility & contrast

On white

4.31

#428A12 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#428A12 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428A12

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428A12	#FFFFFF	#000000	##000000
##428A12	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7D00

Deuteranopia (green-blind)

#867822

Tritanopia (blue-blind)

#3E8575

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #428a12;
/* rgb */ color: rgb(66, 138, 18);
/* oklch */ color: oklch(56.5% 0.162 136.7);

Tailwind

colors: {
  custom: {
    50: '#7fad5e',
    500: '#428a12',
    950: '#000000',
  },
}

SCSS

$custom: #428a12;
$custom-light: #7fad5e;
$custom-dark: #000000;

JSON

{
  "hex": "#428a12",
  "rgb": {
    "r": 66,
    "g": 138,
    "b": 18
  },
  "hsl": {
    "h": 96,
    "s": 76.923,
    "l": 30.588
  },
  "oklch": {
    "l": 0.56464,
    "c": 0.16246,
    "h": 136.7
  },
  "luminance": 0.19379
}

Semantic roles & 50–950 ramp

primary

#428A12

secondary

#8939BF

accent

#34F3A7

background

#F8FAF5

surface

#EFF4EA

border

#CACEC6

text

#0B1005

muted

#7C7F79

Preview Lab

Preview with #428A12

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

Preview Lab → · Contrast checker → · Palette generator →