#66718C#66718C

#66718C is a mid, muted blue. Relative luminance 0.165; OKLCH L 55.0% C 0.044 H 267.6°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#66718C
RGB	rgb(102, 113, 140)
HSL	hsl(223, 16%, 47%)
HSV	hsv(223, 27%, 55%)
CMYK	cmyk(27.1%, 19.3%, 0%, 45.1%)
CIE-LAB	lab(47.66, 2.35, -16.12)
CIE-LCH	lch(47.66, 16.29, 278.31°)
OKLab	oklab(54.96% -0.0019 -0.0442)
OKLCH	oklch(54.96% 0.044 267.6)
XYZ	xyz(16.1170, 16.5280, 27.1469)
Luminance	0.1653 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66718C #8C8166

analogous

#66848C #66718C #6E668C

triadic

#66718C #8C6671 #718C66

tetradic

#66718C #8C6684 #8C8166 #668C6E

square

#66718C #8C6684 #8C8166 #668C6E

split-complementary

#66718C #8C6E66 #848C66

monochromatic

#323845 #4C5469 #66718C #8791A8 #ABB1C2

Accessibility & contrast

On white

4.88

#66718C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#66718C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66718C

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66718C	#FFFFFF	#000000	##FFFFFF
##66718C	1.00	4.88	4.31	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#69738D

Deuteranopia (green-blind)

#65708B

Tritanopia (blue-blind)

#5C767A

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #66718c;
/* rgb */ color: rgb(102, 113, 140);
/* oklch */ color: oklch(55.0% 0.044 267.6);

Tailwind

colors: {
  custom: {
    50: '#9299ad',
    500: '#66718c',
    950: '#000000',
  },
}

SCSS

$custom: #66718c;
$custom-light: #9299ad;
$custom-dark: #000000;

JSON

{
  "hex": "#66718c",
  "rgb": {
    "r": 102,
    "g": 113,
    "b": 140
  },
  "hsl": {
    "h": 222.632,
    "s": 15.702,
    "l": 47.451
  },
  "oklch": {
    "l": 0.54956,
    "c": 0.04426,
    "h": 267.6
  },
  "luminance": 0.16528
}

Semantic roles & 50–950 ramp

primary

#66718C

secondary

#B1AB9D

accent

#A36FB8

background

#F9F9FA

surface

#F1F2F4

border

#CBCCCE

text

#0D0E10

muted

#7E7E7F

Preview Lab

Preview with #66718C

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

Preview Lab → · Contrast checker → · Palette generator →