#668BCD#668BCD

#668BCD is a light, moderate blue. Relative luminance 0.257; OKLCH L 63.7% C 0.108 H 261.4°. Best body text is #000000 at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#668BCD
RGB	rgb(102, 139, 205)
HSL	hsl(218, 51%, 60%)
HSV	hsv(218, 50%, 80%)
CMYK	cmyk(50.2%, 32.2%, 0%, 19.6%)
CIE-LAB	lab(57.75, 5.56, -38.04)
CIE-LCH	lch(57.75, 38.44, 278.32°)
OKLab	oklab(63.74% -0.0161 -0.107)
OKLCH	oklch(63.74% 0.108 261.4)
XYZ	xyz(25.7279, 25.6960, 61.3499)
Luminance	0.2570 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668BCD #CDA866

analogous

#66BECD #668BCD #7566CD

triadic

#668BCD #CD668B #8BCD66

tetradic

#668BCD #CD66BE #CDA866 #66CD75

square

#668BCD #CD66BE #CDA866 #66CD75

split-complementary

#668BCD #CD7566 #BECD66

monochromatic

#2D4F8B #3D69B9 #668BCD #94AEDC #C2D1EB

Accessibility & contrast

On white

3.42

#668BCD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.14

#668BCD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668BCD

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668BCD	#FFFFFF	#000000	##000000
##668BCD	1.00	3.42	6.14	6.14
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.14	21.00	1.00	1.00
##000000	6.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7290D0

Deuteranopia (green-blind)

#6686CC

Tritanopia (blue-blind)

#3799A3

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #668bcd;
/* rgb */ color: rgb(102, 139, 205);
/* oklch */ color: oklch(63.7% 0.108 261.4);

Tailwind

colors: {
  custom: {
    50: '#97acdc',
    500: '#668bcd',
    950: '#000000',
  },
}

SCSS

$custom: #668bcd;
$custom-light: #97acdc;
$custom-dark: #000000;

JSON

{
  "hex": "#668bcd",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 205
  },
  "hsl": {
    "h": 218.447,
    "s": 50.739,
    "l": 60.196
  },
  "oklch": {
    "l": 0.63737,
    "c": 0.10819,
    "h": 261.4
  },
  "luminance": 0.25698
}

Semantic roles & 50–950 ramp

primary

#668BCD

secondary

#DBCDB4

accent

#8827BE

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #668BCD

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

Preview Lab → · Contrast checker → · Palette generator →