#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
RGBrgb(66, 139, 26)
HSLhsl(99, 68%, 32%)
HSVhsv(99, 81%, 55%)
CMYKcmyk(52.5%, 0%, 81.3%, 45.5%)
CIE-LABlab(51.49, -42.44, 48.98)
CIE-LCHlch(51.49, 64.81, 130.91°)
OKLaboklab(56.78% -0.1178 0.1086)
OKLCHoklch(56.78% 0.16 137.3)
XYZxyz(11.6655, 19.6972, 4.1643)
Luminance0.1970 (WCAG relative)
Temperaturewarm
Familyyellow-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
##428B1A1.004.254.944.94
#FFFFFF4.251.0021.0021.00
#0000004.9421.001.001.00
##0000004.9421.001.001.00

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 →

#428B1A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva