#668BBC#668BBC

#668BBC is a light, moderate cyan. Relative luminance 0.249; OKLCH L 62.9% C 0.085 H 255.7°. Best body text is #000000 at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#668BBC
RGB	rgb(102, 139, 188)
HSL	hsl(214, 39%, 57%)
HSV	hsv(214, 46%, 74%)
CMYK	cmyk(45.7%, 26.1%, 0%, 26.3%)
CIE-LAB	lab(57.00, 0.45, -29.59)
CIE-LCH	lch(57.00, 29.59, 270.87°)
OKLab	oklab(62.9% -0.021 -0.0826)
OKLCH	oklch(62.9% 0.085 255.7)
XYZ	xyz(23.7862, 24.9193, 51.1237)
Luminance	0.2492 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668BBC #BC9766

analogous

#66B6BC #668BBC #6C66BC

triadic

#668BBC #BC668B #8BBC66

tetradic

#668BBC #BC66B6 #BC9766 #66BC6C

square

#668BBC #BC66B6 #BC9766 #66BC6C

split-complementary

#668BBC #BC6C66 #B6BC66

monochromatic

#334F75 #466C9F #668BBC #91ABCF #BBCCE1

Accessibility & contrast

On white

3.51

#668BBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.98

#668BBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668BBC

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668BBC	#FFFFFF	#000000	##000000
##668BBC	1.00	3.51	5.98	5.98
#FFFFFF	3.51	1.00	21.00	21.00
#000000	5.98	21.00	1.00	1.00
##000000	5.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#788DBE

Deuteranopia (green-blind)

#6E85BB

Tritanopia (blue-blind)

#44969C

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #668bbc;
/* rgb */ color: rgb(102, 139, 188);
/* oklch */ color: oklch(62.9% 0.085 255.7);

Tailwind

colors: {
  custom: {
    50: '#96acd0',
    500: '#668bbc',
    950: '#000000',
  },
}

SCSS

$custom: #668bbc;
$custom-light: #96acd0;
$custom-dark: #000000;

JSON

{
  "hex": "#668bbc",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 188
  },
  "hsl": {
    "h": 214.186,
    "s": 39.091,
    "l": 56.863
  },
  "oklch": {
    "l": 0.62904,
    "c": 0.08523,
    "h": 255.7
  },
  "luminance": 0.24921
}

Semantic roles & 50–950 ramp

primary

#668BBC

secondary

#D0C1AD

accent

#9C59CF

background

#F9FAFC

surface

#F2F4F9

border

#CCCED2

text

#0E1014

muted

#7E7F82

Preview Lab

Preview with #668BBC

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

Preview Lab → · Contrast checker → · Palette generator →