#66708C#66708C

#66708C is a mid, muted blue. Relative luminance 0.163; OKLCH L 54.7% C 0.045 H 269.5°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#66708C
RGB	rgb(102, 112, 140)
HSL	hsl(224, 16%, 47%)
HSV	hsv(224, 27%, 55%)
CMYK	cmyk(27.1%, 20%, 0%, 45.1%)
CIE-LAB	lab(47.37, 2.95, -16.56)
CIE-LCH	lch(47.37, 16.82, 280.10°)
OKLab	oklab(54.73% -0.0004 -0.0454)
OKLCH	oklch(54.73% 0.045 269.5)
XYZ	xyz(16.0060, 16.3061, 27.1099)
Luminance	0.1631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66708C #8C8266

analogous

#66838C #66708C #6F668C

triadic

#66708C #8C6670 #708C66

tetradic

#66708C #8C6683 #8C8266 #668C6F

square

#66708C #8C6683 #8C8266 #668C6F

split-complementary

#66708C #8C6F66 #838C66

monochromatic

#323745 #4C5469 #66708C #8790A8 #ABB1C2

Accessibility & contrast

On white

4.93

#66708C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#66708C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66708C

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66708C	#FFFFFF	#000000	##FFFFFF
##66708C	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68728D

Deuteranopia (green-blind)

#646F8B

Tritanopia (blue-blind)

#5C7579

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #66708c;
/* rgb */ color: rgb(102, 112, 140);
/* oklch */ color: oklch(54.7% 0.045 269.5);

Tailwind

colors: {
  custom: {
    50: '#9299ad',
    500: '#66708c',
    950: '#000000',
  },
}

SCSS

$custom: #66708c;
$custom-light: #9299ad;
$custom-dark: #000000;

JSON

{
  "hex": "#66708c",
  "rgb": {
    "r": 102,
    "g": 112,
    "b": 140
  },
  "hsl": {
    "h": 224.211,
    "s": 15.702,
    "l": 47.451
  },
  "oklch": {
    "l": 0.54732,
    "c": 0.04544,
    "h": 269.5
  },
  "luminance": 0.16307
}

Semantic roles & 50–950 ramp

primary

#66708C

secondary

#B1AB9D

accent

#A56FB8

background

#F9F9FA

surface

#F1F2F4

border

#CBCCCE

text

#0D0D10

muted

#7E7E7F

Preview Lab

Preview with #66708C

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

Preview Lab → · Contrast checker → · Palette generator →