#668CB2#668CB2

#668CB2 is a light, moderate cyan. Relative luminance 0.248; OKLCH L 62.7% C 0.072 H 249.0°. Best body text is #000000 at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#668CB2
RGB	rgb(102, 140, 178)
HSL	hsl(210, 33%, 55%)
HSV	hsv(210, 43%, 70%)
CMYK	cmyk(42.7%, 21.3%, 0%, 30.2%)
CIE-LAB	lab(56.87, -3.03, -24.09)
CIE-LCH	lch(56.87, 24.28, 262.83°)
OKLab	oklab(62.67% -0.0256 -0.0669)
OKLCH	oklch(62.67% 0.072 249)
XYZ	xyz(22.8908, 24.7939, 45.6904)
Luminance	0.2480 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CB2 #B28C66

analogous

#66B2B2 #668CB2 #6666B2

triadic

#668CB2 #B2668C #8CB266

tetradic

#668CB2 #B266B2 #B28C66 #66B266

square

#668CB2 #B266B2 #B28C66 #66B266

split-complementary

#668CB2 #B26666 #B2B266

monochromatic

#354F69 #496D92 #668CB2 #8FABC6 #B7C9DB

Accessibility & contrast

On white

3.52

#668CB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.96

#668CB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CB2

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CB2	#FFFFFF	#000000	##000000
##668CB2	1.00	3.52	5.96	5.96
#FFFFFF	3.52	1.00	21.00	21.00
#000000	5.96	21.00	1.00	1.00
##000000	5.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8DB4

Deuteranopia (green-blind)

#7385B1

Tritanopia (blue-blind)

#499599

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #668cb2;
/* rgb */ color: rgb(102, 140, 178);
/* oklch */ color: oklch(62.7% 0.072 249.0);

Tailwind

colors: {
  custom: {
    50: '#95adc9',
    500: '#668cb2',
    950: '#000000',
  },
}

SCSS

$custom: #668cb2;
$custom-light: #95adc9;
$custom-dark: #000000;

JSON

{
  "hex": "#668cb2",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 178
  },
  "hsl": {
    "h": 210,
    "s": 33.043,
    "l": 54.902
  },
  "oklch": {
    "l": 0.62673,
    "c": 0.07159,
    "h": 249
  },
  "luminance": 0.24795
}

Semantic roles & 50–950 ramp

primary

#668CB2

secondary

#CABAAA

accent

#945FC9

background

#F9FAFC

surface

#F2F4F8

border

#CCCED1

text

#0D1013

muted

#7E7F82

Preview Lab

Preview with #668CB2

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

Preview Lab → · Contrast checker → · Palette generator →