#668BC8#668BC8

#668BC8 is a light, moderate blue. Relative luminance 0.255; OKLCH L 63.5% C 0.101 H 260.1°. Best body text is #000000 at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#668BC8
RGB	rgb(102, 139, 200)
HSL	hsl(217, 47%, 59%)
HSV	hsv(217, 49%, 78%)
CMYK	cmyk(49%, 30.5%, 0%, 21.6%)
CIE-LAB	lab(57.52, 4.04, -35.58)
CIE-LCH	lch(57.52, 35.80, 276.47°)
OKLab	oklab(63.49% -0.0175 -0.0998)
OKLCH	oklch(63.49% 0.101 260.1)
XYZ	xyz(25.1340, 25.4584, 58.2219)
Luminance	0.2546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668BC8 #C8A366

analogous

#66BCC8 #668BC8 #7266C8

triadic

#668BC8 #C8668B #8BC866

tetradic

#668BC8 #C866BC #C8A366 #66C872

square

#668BC8 #C866BC #C8A366 #66C872

split-complementary

#668BC8 #C87266 #BCC866

monochromatic

#2F4F84 #406BB1 #668BC8 #93ADD8 #C0CFE8

Accessibility & contrast

On white

3.45

#668BC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.09

#668BC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668BC8

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668BC8	#FFFFFF	#000000	##000000
##668BC8	1.00	3.45	6.09	6.09
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.09	21.00	1.00	1.00
##000000	6.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#748FCB

Deuteranopia (green-blind)

#6886C7

Tritanopia (blue-blind)

#3B98A1

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #668bc8;
/* rgb */ color: rgb(102, 139, 200);
/* oklch */ color: oklch(63.5% 0.101 260.1);

Tailwind

colors: {
  custom: {
    50: '#97acd9',
    500: '#668bc8',
    950: '#000000',
  },
}

SCSS

$custom: #668bc8;
$custom-light: #97acd9;
$custom-dark: #000000;

JSON

{
  "hex": "#668bc8",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 200
  },
  "hsl": {
    "h": 217.347,
    "s": 47.115,
    "l": 59.216
  },
  "oklch": {
    "l": 0.63485,
    "c": 0.10137,
    "h": 260.1
  },
  "luminance": 0.2546
}

Semantic roles & 50–950 ramp

primary

#668BC8

secondary

#D8CAB2

accent

#A451D7

background

#F9FAFD

surface

#F2F4FA

border

#CCCED3

text

#0E1014

muted

#7E7F83

Preview Lab

Preview with #668BC8

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

Preview Lab → · Contrast checker → · Palette generator →