#665B68#665B68

#665B68 is a mid, muted grey. Relative luminance 0.113; OKLCH L 48.6% C 0.025 H 321.0°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX#665B68
RGBrgb(102, 91, 104)
HSLhsl(291, 7%, 38%)
HSVhsv(291, 13%, 41%)
CMYKcmyk(1.9%, 12.5%, 0%, 59.2%)
CIE-LABlab(40.09, 7.08, -5.79)
CIE-LCHlch(40.09, 9.15, 320.71°)
OKLaboklab(48.63% 0.0191 -0.0155)
OKLCHoklch(48.63% 0.025 321)
XYZxyz(11.7189, 11.3066, 14.6590)
Luminance0.1131 (WCAG relative)
Temperatureneutral
Familygrey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#665B68 #5D685B
analogous
#5F5B68 #665B68 #685B63
triadic
#665B68 #68665B #5B6866
tetradic
#665B68 #685F5B #5D685B #5B6368
square
#665B68 #685F5B #5D685B #5B6368
split-complementary
#665B68 #63685B #5B685F
monochromatic
#262227 #463E47 #665B68 #867889 #A398A5

Accessibility & contrast

On white

6.44
#665B68 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.26
#665B68 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665B68
6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##665B68#FFFFFF#000000##FFFFFF
##665B681.006.443.266.44
#FFFFFF6.441.0021.001.00
#0000003.2621.001.0021.00
##FFFFFF6.441.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5A5E69
Deuteranopia (green-blind)
#5C5F68
Tritanopia (blue-blind)
#665C5F
Achromatopsia (no color)
#5E5E5E

Design tokens & code

CSS
--color: #665b68;
/* rgb */ color: rgb(102, 91, 104);
/* oklch */ color: oklch(48.6% 0.025 321.0);
Tailwind
colors: {
  custom: {
    50: '#918993',
    500: '#665b68',
    950: '#000000',
  },
}
SCSS
$custom: #665b68;
$custom-light: #918993;
$custom-dark: #000000;
JSON
{
  "hex": "#665b68",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 104
  },
  "hsl": {
    "h": 290.769,
    "s": 6.667,
    "l": 38.235
  },
  "oklch": {
    "l": 0.48625,
    "c": 0.0246,
    "h": 321
  },
  "luminance": 0.11306
}

Semantic roles & 50–950 ramp

primary
#665B68
secondary
#8C958A
accent
#B07881
background
#F8F8F9
surface
#F0F0F1
border
#CBCBCB
text
#0C0B0D
muted
#7D7C7E

Preview Lab

Preview with #665B68

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

Preview Lab → · Contrast checker → · Palette generator →

#665B68 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva