#668FDB#668FDB

#668FDB is a light, vivid blue. Relative luminance 0.276; OKLCH L 65.3% C 0.123 H 262.0°. Best body text is #000000 at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#668FDB
RGB	rgb(102, 143, 219)
HSL	hsl(219, 62%, 63%)
HSV	hsv(219, 53%, 86%)
CMYK	cmyk(53.4%, 34.7%, 0%, 14.1%)
CIE-LAB	lab(59.51, 7.55, -43.12)
CIE-LCH	lch(59.51, 43.78, 279.94°)
OKLab	oklab(65.32% -0.0171 -0.1217)
OKLCH	oklch(65.32% 0.123 262)
XYZ	xyz(28.0838, 27.5821, 70.8481)
Luminance	0.2758 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668FDB #DBB266

analogous

#66CADB #668FDB #7766DB

triadic

#668FDB #DB668F #8FDB66

tetradic

#668FDB #DB66CA #DBB266 #66DB77

square

#668FDB #DB66CA #DBB266 #66DB77

split-complementary

#668FDB #DB7766 #CADB66

monochromatic

#2651A1 #346BCF #668FDB #98B3E7 #C9D8F2

Accessibility & contrast

On white

3.22

#668FDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.52

#668FDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668FDB

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668FDB	#FFFFFF	#000000	##000000
##668FDB	1.00	3.22	6.52	6.52
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.52	21.00	1.00	1.00
##000000	6.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7195DE

Deuteranopia (green-blind)

#638AD9

Tritanopia (blue-blind)

#26A0AB

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #668fdb;
/* rgb */ color: rgb(102, 143, 219);
/* oklch */ color: oklch(65.3% 0.123 262.0);

Tailwind

colors: {
  custom: {
    50: '#99afe6',
    500: '#668fdb',
    950: '#000000',
  },
}

SCSS

$custom: #668fdb;
$custom-light: #99afe6;
$custom-dark: #000000;

JSON

{
  "hex": "#668fdb",
  "rgb": {
    "r": 102,
    "g": 143,
    "b": 219
  },
  "hsl": {
    "h": 218.974,
    "s": 61.905,
    "l": 62.941
  },
  "oklch": {
    "l": 0.65324,
    "c": 0.12293,
    "h": 262
  },
  "luminance": 0.27584
}

Semantic roles & 50–950 ramp

primary

#668FDB

secondary

#E3D5B9

accent

#8D1CCA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #668FDB

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

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