#428F63#428F63

#428F63 is a mid, moderate green. Relative luminance 0.217; OKLCH L 58.9% C 0.103 H 156.2°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#428F63
RGB	rgb(66, 143, 99)
HSL	hsl(146, 37%, 41%)
HSV	hsv(146, 54%, 56%)
CMYK	cmyk(53.8%, 0%, 30.8%, 43.9%)
CIE-LAB	lab(53.71, -34.42, 16.36)
CIE-LCH	lch(53.71, 38.11, 154.58°)
OKLab	oklab(58.89% -0.094 0.0415)
OKLCH	oklch(58.89% 0.103 156.2)
XYZ	xyz(14.3202, 21.7028, 15.2364)
Luminance	0.2170 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428F63 #8F426E

analogous

#478F42 #428F63 #428F89

triadic

#428F63 #63428F #8F6342

tetradic

#428F63 #42478F #8F426E #8F8942

square

#428F63 #42478F #8F426E #8F8942

split-complementary

#428F63 #89428F #8F4247

monochromatic

#1B3B29 #2F6546 #428F63 #5BB381 #85C7A1

Accessibility & contrast

On white

3.93

#428F63 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#428F63 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428F63

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428F63	#FFFFFF	#000000	##000000
##428F63	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E8560

Deuteranopia (green-blind)

#837D66

Tritanopia (blue-blind)

#2C8E83

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #428f63;
/* rgb */ color: rgb(66, 143, 99);
/* oklch */ color: oklch(58.9% 0.103 156.2);

Tailwind

colors: {
  custom: {
    50: '#7cb08f',
    500: '#428f63',
    950: '#000000',
  },
}

SCSS

$custom: #428f63;
$custom-light: #7cb08f;
$custom-dark: #000000;

JSON

{
  "hex": "#428f63",
  "rgb": {
    "r": 66,
    "g": 143,
    "b": 99
  },
  "hsl": {
    "h": 145.714,
    "s": 36.842,
    "l": 40.98
  },
  "oklch": {
    "l": 0.58892,
    "c": 0.10274,
    "h": 156.2
  },
  "luminance": 0.21704
}

Semantic roles & 50–950 ramp

primary

#428F63

secondary

#B17B9A

accent

#5B9CCD

background

#F7FAF8

surface

#EEF5F0

border

#C9CFCB

text

#0A100C

muted

#7C7F7D

Preview Lab

Preview with #428F63

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

Preview Lab → · Contrast checker → · Palette generator →