#668DCC#668DCC

#668DCC is a light, moderate blue. Relative luminance 0.262; OKLCH L 64.1% C 0.105 H 259.7°. Best body text is #000000 at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#668DCC
RGB	rgb(102, 141, 204)
HSL	hsl(217, 50%, 60%)
HSV	hsv(217, 50%, 80%)
CMYK	cmyk(50%, 30.9%, 0%, 20%)
CIE-LAB	lab(58.26, 4.08, -36.68)
CIE-LCH	lch(58.26, 36.90, 276.35°)
OKLab	oklab(64.12% -0.0187 -0.103)
OKLCH	oklch(64.12% 0.105 259.7)
XYZ	xyz(25.8998, 26.2324, 60.8136)
Luminance	0.2623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668DCC #CCA566

analogous

#66C0CC #668DCC #7266CC

triadic

#668DCC #CC668D #8DCC66

tetradic

#668DCC #CC66C0 #CCA566 #66CC72

square

#668DCC #CC66C0 #CCA566 #66CC72

split-complementary

#668DCC #CC7266 #C0CC66

monochromatic

#2E518A #3D6CB8 #668DCC #94AFDB #C2D1EB

Accessibility & contrast

On white

3.36

#668DCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.25

#668DCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668DCC

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668DCC	#FFFFFF	#000000	##000000
##668DCC	1.00	3.36	6.25	6.25
#FFFFFF	3.36	1.00	21.00	21.00
#000000	6.25	21.00	1.00	1.00
##000000	6.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7591CF

Deuteranopia (green-blind)

#6988CB

Tritanopia (blue-blind)

#379BA3

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #668dcc;
/* rgb */ color: rgb(102, 141, 204);
/* oklch */ color: oklch(64.1% 0.105 259.7);

Tailwind

colors: {
  custom: {
    50: '#97aedc',
    500: '#668dcc',
    950: '#000000',
  },
}

SCSS

$custom: #668dcc;
$custom-light: #97aedc;
$custom-dark: #000000;

JSON

{
  "hex": "#668dcc",
  "rgb": {
    "r": 102,
    "g": 141,
    "b": 204
  },
  "hsl": {
    "h": 217.059,
    "s": 50,
    "l": 60
  },
  "oklch": {
    "l": 0.64119,
    "c": 0.10472,
    "h": 259.7
  },
  "luminance": 0.26234
}

Semantic roles & 50–950 ramp

primary

#668DCC

secondary

#DBCCB3

accent

#A44EDA

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #668DCC

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

Preview Lab → · Contrast checker → · Palette generator →