#66839B#66839B

#66839B is a mid, muted cyan. Relative luminance 0.214; OKLCH L 59.7% C 0.050 H 243.7°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#66839B
RGB	rgb(102, 131, 155)
HSL	hsl(207, 21%, 50%)
HSV	hsv(207, 34%, 61%)
CMYK	cmyk(34.2%, 15.5%, 0%, 39.2%)
CIE-LAB	lab(53.41, -4.23, -16.16)
CIE-LCH	lch(53.41, 16.71, 255.33°)
OKLab	oklab(59.66% -0.022 -0.0444)
OKLCH	oklch(59.66% 0.05 243.7)
XYZ	xyz(19.5103, 21.4230, 34.1110)
Luminance	0.2142 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66839B #9B7E66

analogous

#669B99 #66839B #66689B

triadic

#66839B #9B6683 #839B66

tetradic

#66839B #99669B #9B7E66 #689B66

square

#66839B #99669B #9B7E66 #689B66

split-complementary

#66839B #9B6668 #9B9966

monochromatic

#354551 #4D6476 #66839B #8BA1B3 #B0BFCB

Accessibility & contrast

On white

3.97

#66839B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#66839B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66839B

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66839B	#FFFFFF	#000000	##000000
##66839B	1.00	3.97	5.28	5.28
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#79839C

Deuteranopia (green-blind)

#727D9B

Tritanopia (blue-blind)

#55898B

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #66839b;
/* rgb */ color: rgb(102, 131, 155);
/* oklch */ color: oklch(59.7% 0.050 243.7);

Tailwind

colors: {
  custom: {
    50: '#93a7b8',
    500: '#66839b',
    950: '#000000',
  },
}

SCSS

$custom: #66839b;
$custom-light: #93a7b8;
$custom-dark: #000000;

JSON

{
  "hex": "#66839b",
  "rgb": {
    "r": 102,
    "g": 131,
    "b": 155
  },
  "hsl": {
    "h": 207.17,
    "s": 20.949,
    "l": 50.392
  },
  "oklch": {
    "l": 0.59656,
    "c": 0.04957,
    "h": 243.7
  },
  "luminance": 0.21424
}

Semantic roles & 50–950 ramp

primary

#66839B

secondary

#BAADA3

accent

#906ABE

background

#F9FAFB

surface

#F1F4F6

border

#CBCED0

text

#0D0F11

muted

#7E7F80

Preview Lab

Preview with #66839B

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

Preview Lab → · Contrast checker → · Palette generator →