#647A66#647A66

#647A66 is a mid, muted green. Relative luminance 0.176; OKLCH L 55.6% C 0.040 H 147.5°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#647A66
RGB	rgb(100, 122, 102)
HSL	hsl(125, 10%, 44%)
HSV	hsv(125, 18%, 48%)
CMYK	cmyk(18%, 0%, 16.4%, 52.2%)
CIE-LAB	lab(48.99, -12.28, 8.32)
CIE-LCH	lch(48.99, 14.83, 145.88°)
OKLab	oklab(55.58% -0.0337 0.0215)
OKLCH	oklch(55.58% 0.04 147.5)
XYZ	xyz(14.6128, 17.5874, 15.1926)
Luminance	0.1759 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647A66 #7A6478

analogous

#6D7A64 #647A66 #647A71

triadic

#647A66 #66647A #7A6664

tetradic

#647A66 #646D7A #7A6478 #7A7164

square

#647A66 #646D7A #7A6478 #7A7164

split-complementary

#647A66 #71647A #7A646D

monochromatic

#2D372E #48584A #647A66 #829984 #A4B4A5

Accessibility & contrast

On white

4.65

#647A66 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#647A66 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #647A66

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647A66	#FFFFFF	#000000	##FFFFFF
##647A66	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B7665

Deuteranopia (green-blind)

#777367

Tritanopia (blue-blind)

#627974

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #647a66;
/* rgb */ color: rgb(100, 122, 102);
/* oklch */ color: oklch(55.6% 0.040 147.5);

Tailwind

colors: {
  custom: {
    50: '#90a091',
    500: '#647a66',
    950: '#000000',
  },
}

SCSS

$custom: #647a66;
$custom-light: #90a091;
$custom-dark: #000000;

JSON

{
  "hex": "#647a66",
  "rgb": {
    "r": 100,
    "g": 122,
    "b": 102
  },
  "hsl": {
    "h": 125.455,
    "s": 9.91,
    "l": 43.529
  },
  "oklch": {
    "l": 0.55582,
    "c": 0.04001,
    "h": 147.5
  },
  "luminance": 0.17588
}

Semantic roles & 50–950 ramp

primary

#647A66

secondary

#A496A2

accent

#75ADB3

background

#F8F9F8

surface

#F0F2F0

border

#CBCCCB

text

#0C0E0C

muted

#7D7E7D

Preview Lab

Preview with #647A66

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

Preview Lab → · Contrast checker → · Palette generator →