#668BB3#668BB3

#668BB3 is a light, moderate cyan. Relative luminance 0.245; OKLCH L 62.5% C 0.074 H 251.0°. Best body text is #000000 at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#668BB3
RGB	rgb(102, 139, 179)
HSL	hsl(211, 34%, 55%)
HSV	hsv(211, 43%, 70%)
CMYK	cmyk(43%, 22.3%, 0%, 29.8%)
CIE-LAB	lab(56.63, -2.17, -25.04)
CIE-LCH	lch(56.63, 25.13, 265.05°)
OKLab	oklab(62.49% -0.024 -0.0696)
OKLCH	oklch(62.49% 0.074 251)
XYZ	xyz(22.8461, 24.5433, 46.1726)
Luminance	0.2455 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668BB3 #B38E66

analogous

#66B1B3 #668BB3 #6866B3

triadic

#668BB3 #B3668B #8BB366

tetradic

#668BB3 #B366B1 #B38E66 #66B368

square

#668BB3 #B366B1 #B38E66 #66B368

split-complementary

#668BB3 #B36866 #B1B366

monochromatic

#354E6A #496C93 #668BB3 #8FAAC7 #B8C9DC

Accessibility & contrast

On white

3.55

#668BB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.91

#668BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668BB3

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668BB3	#FFFFFF	#000000	##000000
##668BB3	1.00	3.55	5.91	5.91
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.91	21.00	1.00	1.00
##000000	5.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8CB5

Deuteranopia (green-blind)

#7284B2

Tritanopia (blue-blind)

#499498

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #668bb3;
/* rgb */ color: rgb(102, 139, 179);
/* oklch */ color: oklch(62.5% 0.074 251.0);

Tailwind

colors: {
  custom: {
    50: '#95acca',
    500: '#668bb3',
    950: '#000000',
  },
}

SCSS

$custom: #668bb3;
$custom-light: #95acca;
$custom-dark: #000000;

JSON

{
  "hex": "#668bb3",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 179
  },
  "hsl": {
    "h": 211.169,
    "s": 33.624,
    "l": 55.098
  },
  "oklch": {
    "l": 0.62492,
    "c": 0.07358,
    "h": 251
  },
  "luminance": 0.24545
}

Semantic roles & 50–950 ramp

primary

#668BB3

secondary

#CBBBAA

accent

#965ECA

background

#F9FAFC

surface

#F2F4F8

border

#CCCED1

text

#0D1013

muted

#7E7F82

Preview Lab

Preview with #668BB3

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

Preview Lab → · Contrast checker → · Palette generator →