#428D1A#428D1A

#428D1A is a mid, vivid yellow-green. Relative luminance 0.203; OKLCH L 57.3% C 0.163 H 137.5°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX#428D1A
RGBrgb(66, 141, 26)
HSLhsl(99, 69%, 33%)
HSVhsv(99, 82%, 55%)
CMYKcmyk(53.2%, 0%, 81.6%, 44.7%)
CIE-LABlab(52.15, -43.23, 49.60)
CIE-LCHlch(52.15, 65.80, 131.07°)
OKLaboklab(57.32% -0.1199 0.1099)
OKLCHoklch(57.32% 0.163 137.5)
XYZxyz(11.9577, 20.2817, 4.2617)
Luminance0.2028 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#428D1A #651A8D
analogous
#7C8D1A #428D1A #1A8D2B
triadic
#428D1A #1A428D #8D1A42
tetradic
#428D1A #1A7C8D #651A8D #8D2B1A
square
#428D1A #1A7C8D #651A8D #8D2B1A
split-complementary
#428D1A #2B1A8D #8D1A7C
monochromatic
#122607 #2A5910 #428D1A #5AC124 #7ADD45

Accessibility & contrast

On white

4.15
#428D1A on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.06
#428D1A on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428D1A
5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##428D1A#FFFFFF#000000##000000
##428D1A1.004.155.065.06
#FFFFFF4.151.0021.0021.00
#0000005.0621.001.001.00
##0000005.0621.001.001.00

Color blindness preview

Protanopia (red-blind)
#928000
Deuteranopia (green-blind)
#887A28
Tritanopia (blue-blind)
#3D8878
Achromatopsia (no color)
#7C7C7C

Design tokens & code

CSS
--color: #428d1a;
/* rgb */ color: rgb(66, 141, 26);
/* oklch */ color: oklch(57.3% 0.163 137.5);
Tailwind
colors: {
  custom: {
    50: '#7faf61',
    500: '#428d1a',
    950: '#000000',
  },
}
SCSS
$custom: #428d1a;
$custom-light: #7faf61;
$custom-dark: #000000;
JSON
{
  "hex": "#428d1a",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 26
  },
  "hsl": {
    "h": 99.13,
    "s": 68.862,
    "l": 32.745
  },
  "oklch": {
    "l": 0.57322,
    "c": 0.16265,
    "h": 137.5
  },
  "luminance": 0.20283
}

Semantic roles & 50–950 ramp

primary
#428D1A
secondary
#9445BE
accent
#3CECAF
background
#F8FAF6
surface
#EFF4EB
border
#CACEC6
text
#0B1005
muted
#7C7F7A

Preview Lab

Preview with #428D1A

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

Preview Lab → · Contrast checker → · Palette generator →

#428D1A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva