#428B16#428B16

#428B16 is a mid, vivid yellow-green. Relative luminance 0.197; OKLCH L 56.8% C 0.162 H 137.0°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#428B16
RGB	rgb(66, 139, 22)
HSL	hsl(97, 73%, 32%)
HSV	hsv(97, 84%, 55%)
CMYK	cmyk(52.5%, 0%, 84.2%, 45.5%)
CIE-LAB	lab(51.47, -42.65, 50.15)
CIE-LCH	lch(51.47, 65.84, 130.38°)
OKLab	oklab(56.76% -0.1186 0.1105)
OKLCH	oklch(56.76% 0.162 137)
XYZ	xyz(11.6238, 19.6806, 3.9451)
Luminance	0.1968 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428B16 #5F168B

analogous

#7D8B16 #428B16 #168B25

triadic

#428B16 #16428B #8B1642

tetradic

#428B16 #167D8B #5F168B #8B2516

square

#428B16 #167D8B #5F168B #8B2516

split-complementary

#428B16 #25168B #8B167D

monochromatic

#102105 #29560E #428B16 #5BC01E #79E03B

Accessibility & contrast

On white

4.25

#428B16 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#428B16 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428B16

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428B16	#FFFFFF	#000000	##000000
##428B16	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#907E00

Deuteranopia (green-blind)

#877825

Tritanopia (blue-blind)

#3D8676

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #428b16;
/* rgb */ color: rgb(66, 139, 22);
/* oklch */ color: oklch(56.8% 0.162 137.0);

Tailwind

colors: {
  custom: {
    50: '#7fad5f',
    500: '#428b16',
    950: '#000000',
  },
}

SCSS

$custom: #428b16;
$custom-light: #7fad5f;
$custom-dark: #000000;

JSON

{
  "hex": "#428b16",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 22
  },
  "hsl": {
    "h": 97.436,
    "s": 72.671,
    "l": 31.569
  },
  "oklch": {
    "l": 0.56756,
    "c": 0.16206,
    "h": 137
  },
  "luminance": 0.19681
}

Semantic roles & 50–950 ramp

primary

#428B16

secondary

#8E3EBF

accent

#38EFAB

background

#F8FAF5

surface

#EFF4EA

border

#CACEC6

text

#0B1005

muted

#7C7F79

Preview Lab

Preview with #428B16

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

Preview Lab → · Contrast checker → · Palette generator →