#668BF0#668BF0

#668BF0 is a light, vivid blue. Relative luminance 0.276; OKLCH L 65.7% C 0.156 H 266.9°. Best body text is #000000 at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#668BF0
RGB	rgb(102, 139, 240)
HSL	hsl(224, 82%, 67%)
HSV	hsv(224, 58%, 94%)
CMYK	cmyk(57.5%, 42.1%, 0%, 5.9%)
CIE-LAB	lab(59.51, 16.61, -54.79)
CIE-LCH	lch(59.51, 57.25, 286.87°)
OKLab	oklab(65.67% -0.0083 -0.1559)
OKLCH	oklch(65.67% 0.156 266.9)
XYZ	xyz(30.4350, 27.5788, 86.1406)
Luminance	0.2758 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668BF0 #F0CB66

analogous

#66D0F0 #668BF0 #8666F0

triadic

#668BF0 #F0668B #8BF066

tetradic

#668BF0 #F066D0 #F0CB66 #66F086

square

#668BF0 #F066D0 #F0CB66 #66F086

split-complementary

#668BF0 #F08666 #D0F066

monochromatic

#1444C8 #2E61EB #668BF0 #9EB5F5 #D5E0FB

Accessibility & contrast

On white

3.22

#668BF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.52

#668BF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668BF0

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668BF0	#FFFFFF	#000000	##000000
##668BF0	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)

#5F96F4

Deuteranopia (green-blind)

#4C8AEE

Tritanopia (blue-blind)

#00A1B2

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #668bf0;
/* rgb */ color: rgb(102, 139, 240);
/* oklch */ color: oklch(65.7% 0.156 266.9);

Tailwind

colors: {
  custom: {
    50: '#9cacf5',
    500: '#668bf0',
    950: '#000000',
  },
}

SCSS

$custom: #668bf0;
$custom-light: #9cacf5;
$custom-dark: #000000;

JSON

{
  "hex": "#668bf0",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 240
  },
  "hsl": {
    "h": 223.913,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.65672,
    "c": 0.15612,
    "h": 266.9
  },
  "luminance": 0.27581
}

Semantic roles & 50–950 ramp

primary

#668BF0

secondary

#EFE3C3

accent

#A507DF

background

#FAFAFF

surface

#F4F4FE

border

#CECED6

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #668BF0

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

Preview Lab → · Contrast checker → · Palette generator →