#668CD3#668CD3

#668CD3 is a light, moderate blue. Relative luminance 0.263; OKLCH L 64.3% C 0.115 H 262.2°. Best body text is #000000 at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#668CD3
RGB	rgb(102, 140, 211)
HSL	hsl(219, 55%, 61%)
HSV	hsv(219, 52%, 83%)
CMYK	cmyk(51.7%, 33.6%, 0%, 17.3%)
CIE-LAB	lab(58.30, 6.82, -40.54)
CIE-LCH	lch(58.30, 41.11, 279.56°)
OKLab	oklab(64.26% -0.0157 -0.1142)
OKLCH	oklch(64.26% 0.115 262.2)
XYZ	xyz(26.6115, 26.2822, 65.2860)
Luminance	0.2628 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CD3 #D3AD66

analogous

#66C2D3 #668CD3 #7766D3

triadic

#668CD3 #D3668C #8CD366

tetradic

#668CD3 #D366C2 #D3AD66 #66D377

square

#668CD3 #D366C2 #D3AD66 #66D377

split-complementary

#668CD3 #D37766 #C2D366

monochromatic

#2B4F94 #3869C4 #668CD3 #96B0E1 #C5D3EE

Accessibility & contrast

On white

3.36

#668CD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.26

#668CD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CD3

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CD3	#FFFFFF	#000000	##000000
##668CD3	1.00	3.36	6.26	6.26
#FFFFFF	3.36	1.00	21.00	21.00
#000000	6.26	21.00	1.00	1.00
##000000	6.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7092D6

Deuteranopia (green-blind)

#6388D1

Tritanopia (blue-blind)

#319BA6

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #668cd3;
/* rgb */ color: rgb(102, 140, 211);
/* oklch */ color: oklch(64.3% 0.115 262.2);

Tailwind

colors: {
  custom: {
    50: '#98ade1',
    500: '#668cd3',
    950: '#000000',
  },
}

SCSS

$custom: #668cd3;
$custom-light: #98ade1;
$custom-dark: #000000;

JSON

{
  "hex": "#668cd3",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 211
  },
  "hsl": {
    "h": 219.083,
    "s": 55.33,
    "l": 61.373
  },
  "oklch": {
    "l": 0.64262,
    "c": 0.11531,
    "h": 262.2
  },
  "luminance": 0.26284
}

Semantic roles & 50–950 ramp

primary

#668CD3

secondary

#DFD1B6

accent

#8B23C3

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #668CD3

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

Preview Lab → · Contrast checker → · Palette generator →