#428C3F#428C3F

#428C3F is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.4% C 0.134 H 142.9°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX#428C3F
RGBrgb(66, 140, 63)
HSLhsl(118, 38%, 40%)
HSVhsv(118, 55%, 55%)
CMYKcmyk(52.9%, 0%, 55%, 45.1%)
CIE-LABlab(52.14, -39.31, 33.88)
CIE-LCHlch(52.14, 51.89, 139.24°)
OKLaboklab(57.42% -0.107 0.081)
OKLCHoklch(57.42% 0.134 142.9)
XYZxyz(12.5214, 20.2723, 7.9548)
Luminance0.2027 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#428C3F #893F8C
analogous
#698C3F #428C3F #3F8C62
triadic
#428C3F #3F428C #8C3F42
tetradic
#428C3F #3F698C #893F8C #8C623F
square
#428C3F #3F698C #893F8C #8C623F
split-complementary
#428C3F #623F8C #8C3F69
monochromatic
#1A3819 #2E622C #428C3F #59B355 #82C680

Accessibility & contrast

On white

4.15
#428C3F on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.05
#428C3F on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428C3F
5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##428C3F#FFFFFF#000000##000000
##428C3F1.004.155.055.05
#FFFFFF4.151.0021.0021.00
#0000005.0521.001.001.00
##0000005.0521.001.001.00

Color blindness preview

Protanopia (red-blind)
#8F8038
Deuteranopia (green-blind)
#857A45
Tritanopia (blue-blind)
#38887B
Achromatopsia (no color)
#7C7C7C

Design tokens & code

CSS
--color: #428c3f;
/* rgb */ color: rgb(66, 140, 63);
/* oklch */ color: oklch(57.4% 0.134 142.9);
Tailwind
colors: {
  custom: {
    50: '#7dae76',
    500: '#428c3f',
    950: '#000000',
  },
}
SCSS
$custom: #428c3f;
$custom-light: #7dae76;
$custom-dark: #000000;
JSON
{
  "hex": "#428c3f",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 63
  },
  "hsl": {
    "h": 117.662,
    "s": 37.931,
    "l": 39.804
  },
  "oklch": {
    "l": 0.57416,
    "c": 0.1342,
    "h": 142.9
  },
  "luminance": 0.20273
}

Semantic roles & 50–950 ramp

primary
#428C3F
secondary
#AE77B0
accent
#5ACEC9
background
#F7FAF7
surface
#EEF4ED
border
#C9CEC8
text
#0A1008
muted
#7C7F7B

Preview Lab

Preview with #428C3F

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

Preview Lab → · Contrast checker → · Palette generator →

#428C3F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva