#428C55#428C55

#428C55 is a mid, moderate green. Relative luminance 0.206; OKLCH L 57.8% C 0.112 H 150.0°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#428C55
RGB	rgb(66, 140, 85)
HSL	hsl(135, 36%, 40%)
HSV	hsv(135, 53%, 55%)
CMYK	cmyk(52.9%, 0%, 39.3%, 45.1%)
CIE-LAB	lab(52.47, -35.80, 22.53)
CIE-LCH	lch(52.47, 42.31, 147.81°)
OKLab	oklab(57.79% -0.0972 0.0561)
OKLCH	oklch(57.79% 0.112 150)
XYZ	xyz(13.2637, 20.5692, 11.8639)
Luminance	0.2057 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428C55 #8C4279

analogous

#548C42 #428C55 #428C7A

triadic

#428C55 #55428C #8C5542

tetradic

#428C55 #42548C #8C4279 #8C7A42

square

#428C55 #42548C #8C4279 #8C7A42

split-complementary

#428C55 #7A428C #8C4254

monochromatic

#1B3922 #2E623C #428C55 #5AB170 #84C594

Accessibility & contrast

On white

4.11

#428C55 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#428C55 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428C55

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428C55	#FFFFFF	#000000	##000000
##428C55	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D8251

Deuteranopia (green-blind)

#827A58

Tritanopia (blue-blind)

#328A7E

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #428c55;
/* rgb */ color: rgb(66, 140, 85);
/* oklch */ color: oklch(57.8% 0.112 150.0);

Tailwind

colors: {
  custom: {
    50: '#7cae85',
    500: '#428c55',
    950: '#000000',
  },
}

SCSS

$custom: #428c55;
$custom-light: #7cae85;
$custom-dark: #000000;

JSON

{
  "hex": "#428c55",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 85
  },
  "hsl": {
    "h": 135.405,
    "s": 35.922,
    "l": 40.392
  },
  "oklch": {
    "l": 0.57795,
    "c": 0.11222,
    "h": 150
  },
  "luminance": 0.2057
}

Semantic roles & 50–950 ramp

primary

#428C55

secondary

#B07AA2

accent

#5CAFCC

background

#F7FAF8

surface

#EEF4EF

border

#C9CECA

text

#0A100B

muted

#7C7F7C

Preview Lab

Preview with #428C55

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

Preview Lab → · Contrast checker → · Palette generator →