#66779B#66779B

#66779B is a mid, muted blue. Relative luminance 0.184; OKLCH L 56.9% C 0.059 H 264.9°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#66779B
RGB	rgb(102, 119, 155)
HSL	hsl(221, 21%, 50%)
HSV	hsv(221, 34%, 61%)
CMYK	cmyk(34.2%, 23.2%, 0%, 39.2%)
CIE-LAB	lab(49.96, 2.78, -21.44)
CIE-LCH	lch(49.96, 21.62, 277.38°)
OKLab	oklab(56.95% -0.0053 -0.0593)
OKLCH	oklch(56.95% 0.06 264.9)
XYZ	xyz(17.9910, 18.3843, 33.6046)
Luminance	0.1839 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66779B #9B8A66

analogous

#66919B #66779B #6F669B

triadic

#66779B #9B6677 #779B66

tetradic

#66779B #9B6691 #9B8A66 #669B6F

square

#66779B #9B6691 #9B8A66 #669B6F

split-complementary

#66779B #9B6F66 #919B66

monochromatic

#353E51 #4D5B76 #66779B #8B98B3 #B0B9CB

Accessibility & contrast

On white

4.49

#66779B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#66779B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66779B

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66779B	#FFFFFF	#000000	##000000
##66779B	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B799D

Deuteranopia (green-blind)

#66759A

Tritanopia (blue-blind)

#567E83

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #66779b;
/* rgb */ color: rgb(102, 119, 155);
/* oklch */ color: oklch(56.9% 0.059 264.9);

Tailwind

colors: {
  custom: {
    50: '#939eb8',
    500: '#66779b',
    950: '#000000',
  },
}

SCSS

$custom: #66779b;
$custom-light: #939eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#66779b",
  "rgb": {
    "r": 102,
    "g": 119,
    "b": 155
  },
  "hsl": {
    "h": 220.755,
    "s": 20.949,
    "l": 50.392
  },
  "oklch": {
    "l": 0.56947,
    "c": 0.0595,
    "h": 264.9
  },
  "luminance": 0.18385
}

Semantic roles & 50–950 ramp

primary

#66779B

secondary

#BAB3A3

accent

#A36ABE

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0E11

muted

#7E7E80

Preview Lab

Preview with #66779B

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

Preview Lab → · Contrast checker → · Palette generator →