#428657#428657

#428657 is a mid, moderate green. Relative luminance 0.189; OKLCH L 56.2% C 0.101 H 152.0°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#428657
RGB	rgb(66, 134, 87)
HSL	hsl(139, 34%, 39%)
HSV	hsv(139, 51%, 53%)
CMYK	cmyk(50.7%, 0%, 35.1%, 47.5%)
CIE-LAB	lab(50.56, -32.71, 18.87)
CIE-LCH	lch(50.56, 37.76, 150.02°)
OKLab	oklab(56.25% -0.089 0.0474)
OKLCH	oklch(56.25% 0.101 152)
XYZ	xyz(12.4913, 18.8956, 12.0039)
Luminance	0.1890 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428657 #864271

analogous

#4F8642 #428657 #428679

triadic

#428657 #574286 #865742

tetradic

#428657 #424F86 #864271 #867942

square

#428657 #424F86 #864271 #867942

split-complementary

#428657 #794286 #86424F

monochromatic

#1A3422 #2E5D3C #428657 #58AD72 #81C195

Accessibility & contrast

On white

4.39

#428657 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#428657 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428657

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428657	#FFFFFF	#000000	##000000
##428657	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#867C54

Deuteranopia (green-blind)

#7D765A

Tritanopia (blue-blind)

#33847A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #428657;
/* rgb */ color: rgb(66, 134, 87);
/* oklch */ color: oklch(56.2% 0.101 152.0);

Tailwind

colors: {
  custom: {
    50: '#7baa86',
    500: '#428657',
    950: '#000000',
  },
}

SCSS

$custom: #428657;
$custom-light: #7baa86;
$custom-dark: #000000;

JSON

{
  "hex": "#428657",
  "rgb": {
    "r": 66,
    "g": 134,
    "b": 87
  },
  "hsl": {
    "h": 138.529,
    "s": 34,
    "l": 39.216
  },
  "oklch": {
    "l": 0.56247,
    "c": 0.10084,
    "h": 152
  },
  "luminance": 0.18897
}

Semantic roles & 50–950 ramp

primary

#428657

secondary

#AC789C

accent

#5EA9CA

background

#F7FAF8

surface

#EEF4EF

border

#C9CECA

text

#0A100B

muted

#7C7F7C

Preview Lab

Preview with #428657

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

Preview Lab → · Contrast checker → · Palette generator →