#668CCF#668CCF

#668CCF is a light, moderate blue. Relative luminance 0.261; OKLCH L 64.1% C 0.110 H 261.2°. Best body text is #000000 at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#668CCF
RGB	rgb(102, 140, 207)
HSL	hsl(218, 52%, 61%)
HSV	hsv(218, 51%, 81%)
CMYK	cmyk(50.7%, 32.4%, 0%, 18.8%)
CIE-LAB	lab(58.12, 5.59, -38.58)
CIE-LCH	lch(58.12, 38.99, 278.24°)
OKLab	oklab(64.05% -0.0167 -0.1086)
OKLCH	oklch(64.05% 0.11 261.2)
XYZ	xyz(26.1163, 26.0841, 62.6779)
Luminance	0.2609 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CCF #CFA966

analogous

#66C0CF #668CCF #7466CF

triadic

#668CCF #CF668C #8CCF66

tetradic

#668CCF #CF66C0 #CFA966 #66CF74

square

#668CCF #CF66C0 #CFA966 #66CF74

split-complementary

#668CCF #CF7466 #C0CF66

monochromatic

#2D508E #3B6ABD #668CCF #95AFDE #C3D2EC

Accessibility & contrast

On white

3.38

#668CCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.22

#668CCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CCF

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CCF	#FFFFFF	#000000	##000000
##668CCF	1.00	3.38	6.22	6.22
#FFFFFF	3.38	1.00	21.00	21.00
#000000	6.22	21.00	1.00	1.00
##000000	6.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7291D2

Deuteranopia (green-blind)

#6687CE

Tritanopia (blue-blind)

#359BA4

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #668ccf;
/* rgb */ color: rgb(102, 140, 207);
/* oklch */ color: oklch(64.1% 0.110 261.2);

Tailwind

colors: {
  custom: {
    50: '#98adde',
    500: '#668ccf',
    950: '#000000',
  },
}

SCSS

$custom: #668ccf;
$custom-light: #98adde;
$custom-dark: #000000;

JSON

{
  "hex": "#668ccf",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 207
  },
  "hsl": {
    "h": 218.286,
    "s": 52.239,
    "l": 60.588
  },
  "oklch": {
    "l": 0.64055,
    "c": 0.10985,
    "h": 261.2
  },
  "luminance": 0.26086
}

Semantic roles & 50–950 ramp

primary

#668CCF

secondary

#DCCEB4

accent

#8826C0

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #668CCF

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

Preview Lab → · Contrast checker → · Palette generator →