#428D4B#428D4B

#428D4B is a mid, vivid green. Relative luminance 0.207; OKLCH L 57.9% C 0.124 H 146.2°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX#428D4B
RGBrgb(66, 141, 75)
HSLhsl(127, 36%, 41%)
HSVhsv(127, 53%, 55%)
CMYKcmyk(53.2%, 0%, 46.8%, 44.7%)
CIE-LABlab(52.64, -37.96, 28.20)
CIE-LCHlch(52.64, 47.29, 143.39°)
OKLaboklab(57.87% -0.103 0.069)
OKLCHoklch(57.87% 0.124 146.2)
XYZxyz(13.0409, 20.7150, 9.9664)
Luminance0.2072 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#428D4B #8D4284
analogous
#5E8D42 #428D4B #428D70
triadic
#428D4B #4B428D #8D4B42
tetradic
#428D4B #425E8D #8D4284 #8D7042
square
#428D4B #425E8D #8D4284 #8D7042
split-complementary
#428D4B #70428D #8D425E
monochromatic
#1B3A1F #2E6335 #428D4B #5AB265 #84C58C

Accessibility & contrast

On white

4.08
#428D4B on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.14
#428D4B on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428D4B
5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##428D4B#FFFFFF#000000##000000
##428D4B1.004.085.145.14
#FFFFFF4.081.0021.0021.00
#0000005.1421.001.001.00
##0000005.1421.001.001.00

Color blindness preview

Protanopia (red-blind)
#8F8246
Deuteranopia (green-blind)
#857B4F
Tritanopia (blue-blind)
#358A7D
Achromatopsia (no color)
#7E7E7E

Design tokens & code

CSS
--color: #428d4b;
/* rgb */ color: rgb(66, 141, 75);
/* oklch */ color: oklch(57.9% 0.124 146.2);
Tailwind
colors: {
  custom: {
    50: '#7caf7e',
    500: '#428d4b',
    950: '#000000',
  },
}
SCSS
$custom: #428d4b;
$custom-light: #7caf7e;
$custom-dark: #000000;
JSON
{
  "hex": "#428d4b",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 75
  },
  "hsl": {
    "h": 127.2,
    "s": 36.232,
    "l": 40.588
  },
  "oklch": {
    "l": 0.57874,
    "c": 0.12392,
    "h": 146.2
  },
  "luminance": 0.20716
}

Semantic roles & 50–950 ramp

primary
#428D4B
secondary
#B07BAA
accent
#5CBFCC
background
#F7FAF7
surface
#EEF4EE
border
#C9CEC9
text
#0A100A
muted
#7C7F7C

Preview Lab

Preview with #428D4B

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

Preview Lab → · Contrast checker → · Palette generator →

#428D4B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva