#668BD3#668BD3

#668BD3 is a light, moderate blue. Relative luminance 0.260; OKLCH L 64.0% C 0.116 H 262.8°. Best body text is #000000 at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#668BD3
RGB	rgb(102, 139, 211)
HSL	hsl(220, 55%, 61%)
HSV	hsv(220, 52%, 83%)
CMYK	cmyk(51.7%, 34.1%, 0%, 17.3%)
CIE-LAB	lab(58.03, 7.41, -40.97)
CIE-LCH	lch(58.03, 41.64, 280.26°)
OKLab	oklab(64.05% -0.0145 -0.1155)
OKLCH	oklch(64.05% 0.116 262.8)
XYZ	xyz(26.4660, 25.9913, 65.2376)
Luminance	0.2599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668BD3 #D3AE66

analogous

#66C2D3 #668BD3 #7866D3

triadic

#668BD3 #D3668B #8BD366

tetradic

#668BD3 #D366C2 #D3AE66 #66D378

square

#668BD3 #D366C2 #D3AE66 #66D378

split-complementary

#668BD3 #D37866 #C2D366

monochromatic

#2B4E94 #3868C4 #668BD3 #96AFE1 #C5D3EE

Accessibility & contrast

On white

3.39

#668BD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.20

#668BD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668BD3

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668BD3	#FFFFFF	#000000	##000000
##668BD3	1.00	3.39	6.20	6.20
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.20	21.00	1.00	1.00
##000000	6.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F91D6

Deuteranopia (green-blind)

#6287D1

Tritanopia (blue-blind)

#319BA5

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #668bd3;
/* rgb */ color: rgb(102, 139, 211);
/* oklch */ color: oklch(64.0% 0.116 262.8);

Tailwind

colors: {
  custom: {
    50: '#98ace1',
    500: '#668bd3',
    950: '#000000',
  },
}

SCSS

$custom: #668bd3;
$custom-light: #98ace1;
$custom-dark: #000000;

JSON

{
  "hex": "#668bd3",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 211
  },
  "hsl": {
    "h": 219.633,
    "s": 55.33,
    "l": 61.373
  },
  "oklch": {
    "l": 0.64049,
    "c": 0.11642,
    "h": 262.8
  },
  "luminance": 0.25993
}

Semantic roles & 50–950 ramp

primary

#668BD3

secondary

#DFD1B6

accent

#8C23C3

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #668BD3

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

Preview Lab → · Contrast checker → · Palette generator →