#668CDB#668CDB

#668CDB is a light, vivid blue. Relative luminance 0.267; OKLCH L 64.7% C 0.126 H 263.8°. Best body text is #000000 at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#668CDB
RGB	rgb(102, 140, 219)
HSL	hsl(221, 62%, 63%)
HSV	hsv(221, 53%, 86%)
CMYK	cmyk(53.4%, 36.1%, 0%, 14.1%)
CIE-LAB	lab(58.69, 9.32, -44.41)
CIE-LCH	lch(58.69, 45.38, 281.85°)
OKLab	oklab(64.69% -0.0137 -0.1255)
OKLCH	oklch(64.69% 0.126 263.8)
XYZ	xyz(27.6395, 26.6934, 70.6999)
Luminance	0.2670 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CDB #DBB566

analogous

#66C6DB #668CDB #7A66DB

triadic

#668CDB #DB668C #8CDB66

tetradic

#668CDB #DB66C6 #DBB566 #66DB7A

square

#668CDB #DB66C6 #DBB566 #66DB7A

split-complementary

#668CDB #DB7A66 #C6DB66

monochromatic

#264EA1 #3467CF #668CDB #98B1E7 #C9D6F2

Accessibility & contrast

On white

3.31

#668CDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.34

#668CDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CDB

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CDB	#FFFFFF	#000000	##000000
##668CDB	1.00	3.31	6.34	6.34
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.34	21.00	1.00	1.00
##000000	6.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C93DE

Deuteranopia (green-blind)

#5E88D9

Tritanopia (blue-blind)

#279DA9

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #668cdb;
/* rgb */ color: rgb(102, 140, 219);
/* oklch */ color: oklch(64.7% 0.126 263.8);

Tailwind

colors: {
  custom: {
    50: '#99ade6',
    500: '#668cdb',
    950: '#000000',
  },
}

SCSS

$custom: #668cdb;
$custom-light: #99ade6;
$custom-dark: #000000;

JSON

{
  "hex": "#668cdb",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 219
  },
  "hsl": {
    "h": 220.513,
    "s": 61.905,
    "l": 62.941
  },
  "oklch": {
    "l": 0.64688,
    "c": 0.12627,
    "h": 263.8
  },
  "luminance": 0.26695
}

Semantic roles & 50–950 ramp

primary

#668CDB

secondary

#E3D6B9

accent

#911CCA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #668CDB

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

Preview Lab → · Contrast checker → · Palette generator →