#647A82#647A82

#647A82 is a mid, muted cyan. Relative luminance 0.182; OKLCH L 56.5% C 0.029 H 221.9°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#647A82
RGB	rgb(100, 122, 130)
HSL	hsl(196, 13%, 45%)
HSV	hsv(196, 23%, 51%)
CMYK	cmyk(23.1%, 6.2%, 0%, 49%)
CIE-LAB	lab(49.79, -6.09, -7.02)
CIE-LCH	lch(49.79, 9.29, 229.06°)
OKLab	oklab(56.47% -0.0212 -0.0191)
OKLCH	oklch(56.47% 0.029 221.9)
XYZ	xyz(16.2432, 18.2395, 23.7795)
Luminance	0.1824 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647A82 #826C64

analogous

#64827B #647A82 #646B82

triadic

#647A82 #82647A #7A8264

tetradic

#647A82 #7B6482 #826C64 #6B8264

square

#647A82 #7B6482 #826C64 #6B8264

split-complementary

#647A82 #82646B #827B64

monochromatic

#2F393D #495A5F #647A82 #8398A0 #A6B5BA

Accessibility & contrast

On white

4.52

#647A82 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#647A82 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #647A82

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647A82	#FFFFFF	#000000	##000000
##647A82	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#757982

Deuteranopia (green-blind)

#707582

Tritanopia (blue-blind)

#5B7D7C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #647a82;
/* rgb */ color: rgb(100, 122, 130);
/* oklch */ color: oklch(56.5% 0.029 221.9);

Tailwind

colors: {
  custom: {
    50: '#90a0a6',
    500: '#647a82',
    950: '#000000',
  },
}

SCSS

$custom: #647a82;
$custom-light: #90a0a6;
$custom-dark: #000000;

JSON

{
  "hex": "#647a82",
  "rgb": {
    "r": 100,
    "g": 122,
    "b": 130
  },
  "hsl": {
    "h": 196,
    "s": 13.043,
    "l": 45.098
  },
  "oklch": {
    "l": 0.56475,
    "c": 0.02854,
    "h": 221.9
  },
  "luminance": 0.1824
}

Semantic roles & 50–950 ramp

primary

#647A82

secondary

#A99D98

accent

#8472B6

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0C0E0F

muted

#7D7E7F

Preview Lab

Preview with #647A82

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

Preview Lab → · Contrast checker → · Palette generator →