#428B1A#428B1A

#428B1A is a mid, vivid yellow-green. Relative luminance 0.197; OKLCH L 56.8% C 0.160 H 137.3°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#428B1A
RGB	rgb(66, 139, 26)
HSL	hsl(99, 68%, 32%)
HSV	hsv(99, 81%, 55%)
CMYK	cmyk(52.5%, 0%, 81.3%, 45.5%)
CIE-LAB	lab(51.49, -42.44, 48.98)
CIE-LCH	lch(51.49, 64.81, 130.91°)
OKLab	oklab(56.78% -0.1178 0.1086)
OKLCH	oklch(56.78% 0.16 137.3)
XYZ	xyz(11.6655, 19.6972, 4.1643)
Luminance	0.1970 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428B1A #631A8B

analogous

#7B8B1A #428B1A #1A8B2A

triadic

#428B1A #1A428B #8B1A42

tetradic

#428B1A #1A7B8B #631A8B #8B2A1A

square

#428B1A #1A7B8B #631A8B #8B2A1A

split-complementary

#428B1A #2A1A8B #8B1A7B

monochromatic

#112407 #2A5710 #428B1A #5ABF24 #79DC43

Accessibility & contrast

On white

4.25

#428B1A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#428B1A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428B1A

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428B1A	#FFFFFF	#000000	##000000
##428B1A	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)

#867827

Tritanopia (blue-blind)

#3D8676

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #428b1a;
/* rgb */ color: rgb(66, 139, 26);
/* oklch */ color: oklch(56.8% 0.160 137.3);

Tailwind

colors: {
  custom: {
    50: '#7ead61',
    500: '#428b1a',
    950: '#000000',
  },
}

SCSS

$custom: #428b1a;
$custom-light: #7ead61;
$custom-dark: #000000;

JSON

{
  "hex": "#428b1a",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 26
  },
  "hsl": {
    "h": 98.761,
    "s": 68.485,
    "l": 32.353
  },
  "oklch": {
    "l": 0.56777,
    "c": 0.16021,
    "h": 137.3
  },
  "luminance": 0.19698
}

Semantic roles & 50–950 ramp

primary

#428B1A

secondary

#9244BD

accent

#3CEBAD

background

#F8FAF6

surface

#EFF4EB

border

#CACEC6

text

#0B1005

muted

#7C7F7A

Preview Lab

Preview with #428B1A

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

Preview Lab → · Contrast checker → · Palette generator →