#668FD3#668FD3

#668FD3 is a light, moderate blue. Relative luminance 0.272; OKLCH L 64.9% C 0.112 H 260.1°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#668FD3
RGB	rgb(102, 143, 211)
HSL	hsl(217, 55%, 61%)
HSV	hsv(217, 52%, 83%)
CMYK	cmyk(51.7%, 32.2%, 0%, 17.3%)
CIE-LAB	lab(59.13, 5.06, -39.24)
CIE-LCH	lch(59.13, 39.56, 277.35°)
OKLab	oklab(64.91% -0.0192 -0.1104)
OKLCH	oklch(64.91% 0.112 260.1)
XYZ	xyz(27.0558, 27.1709, 65.4342)
Luminance	0.2717 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668FD3 #D3AA66

analogous

#66C6D3 #668FD3 #7466D3

triadic

#668FD3 #D3668F #8FD366

tetradic

#668FD3 #D366C6 #D3AA66 #66D374

square

#668FD3 #D366C6 #D3AA66 #66D374

split-complementary

#668FD3 #D37466 #C6D366

monochromatic

#2B5294 #386DC4 #668FD3 #96B2E1 #C5D5EE

Accessibility & contrast

On white

3.26

#668FD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.43

#668FD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668FD3

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668FD3	#FFFFFF	#000000	##000000
##668FD3	1.00	3.26	6.43	6.43
#FFFFFF	3.26	1.00	21.00	21.00
#000000	6.43	21.00	1.00	1.00
##000000	6.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7494D6

Deuteranopia (green-blind)

#678AD2

Tritanopia (blue-blind)

#309EA7

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #668fd3;
/* rgb */ color: rgb(102, 143, 211);
/* oklch */ color: oklch(64.9% 0.112 260.1);

Tailwind

colors: {
  custom: {
    50: '#98afe1',
    500: '#668fd3',
    950: '#000000',
  },
}

SCSS

$custom: #668fd3;
$custom-light: #98afe1;
$custom-dark: #000000;

JSON

{
  "hex": "#668fd3",
  "rgb": {
    "r": 102,
    "g": 143,
    "b": 211
  },
  "hsl": {
    "h": 217.431,
    "s": 55.33,
    "l": 61.373
  },
  "oklch": {
    "l": 0.64907,
    "c": 0.11211,
    "h": 260.1
  },
  "luminance": 0.27173
}

Semantic roles & 50–950 ramp

primary

#668FD3

secondary

#DFCFB6

accent

#8723C3

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #668FD3

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

Preview Lab → · Contrast checker → · Palette generator →