#668ACC#668ACC

#668ACC is a light, moderate blue. Relative luminance 0.254; OKLCH L 63.5% C 0.108 H 261.9°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#668ACC
RGB	rgb(102, 138, 204)
HSL	hsl(219, 50%, 60%)
HSV	hsv(219, 50%, 80%)
CMYK	cmyk(50%, 32.4%, 0%, 20%)
CIE-LAB	lab(57.42, 5.84, -37.98)
CIE-LCH	lch(57.42, 38.43, 278.75°)
OKLab	oklab(63.47% -0.0152 -0.1068)
OKLCH	oklch(63.47% 0.108 261.9)
XYZ	xyz(25.4634, 25.3596, 60.6681)
Luminance	0.2536 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668ACC #CCA866

analogous

#66BDCC #668ACC #7566CC

triadic

#668ACC #CC668A #8ACC66

tetradic

#668ACC #CC66BD #CCA866 #66CC75

square

#668ACC #CC66BD #CCA866 #66CC75

split-complementary

#668ACC #CC7566 #BDCC66

monochromatic

#2E4E8A #3D68B8 #668ACC #94ADDB #C2D0EB

Accessibility & contrast

On white

3.46

#668ACC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.07

#668ACC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668ACC

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668ACC	#FFFFFF	#000000	##000000
##668ACC	1.00	3.46	6.07	6.07
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.07	21.00	1.00	1.00
##000000	6.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#718FCF

Deuteranopia (green-blind)

#6586CB

Tritanopia (blue-blind)

#3898A2

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #668acc;
/* rgb */ color: rgb(102, 138, 204);
/* oklch */ color: oklch(63.5% 0.108 261.9);

Tailwind

colors: {
  custom: {
    50: '#97abdc',
    500: '#668acc',
    950: '#000000',
  },
}

SCSS

$custom: #668acc;
$custom-light: #97abdc;
$custom-dark: #000000;

JSON

{
  "hex": "#668acc",
  "rgb": {
    "r": 102,
    "g": 138,
    "b": 204
  },
  "hsl": {
    "h": 218.824,
    "s": 50,
    "l": 60
  },
  "oklch": {
    "l": 0.6347,
    "c": 0.1079,
    "h": 261.9
  },
  "luminance": 0.25361
}

Semantic roles & 50–950 ramp

primary

#668ACC

secondary

#DBCDB3

accent

#A84EDA

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #668ACC

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

Preview Lab → · Contrast checker → · Palette generator →