#668CF0#668CF0

#668CF0 is a light, vivid blue. Relative luminance 0.279; OKLCH L 65.9% C 0.155 H 266.5°. Best body text is #000000 at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#668CF0
RGB	rgb(102, 140, 240)
HSL	hsl(223, 82%, 67%)
HSV	hsv(223, 58%, 94%)
CMYK	cmyk(57.5%, 41.7%, 0%, 5.9%)
CIE-LAB	lab(59.77, 16.02, -54.37)
CIE-LCH	lch(59.77, 56.68, 286.41°)
OKLab	oklab(65.88% -0.0094 -0.1546)
OKLCH	oklch(65.88% 0.155 266.5)
XYZ	xyz(30.5804, 27.8698, 86.1891)
Luminance	0.2787 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CF0 #F0CA66

analogous

#66D1F0 #668CF0 #8566F0

triadic

#668CF0 #F0668C #8CF066

tetradic

#668CF0 #F066D1 #F0CA66 #66F085

square

#668CF0 #F066D1 #F0CA66 #66F085

split-complementary

#668CF0 #F08566 #D1F066

monochromatic

#1445C8 #2E62EB #668CF0 #9EB6F5 #D5E0FB

Accessibility & contrast

On white

3.19

#668CF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.57

#668CF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CF0

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CF0	#FFFFFF	#000000	##000000
##668CF0	1.00	3.19	6.57	6.57
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.57	21.00	1.00	1.00
##000000	6.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6097F4

Deuteranopia (green-blind)

#4E8AEE

Tritanopia (blue-blind)

#00A2B2

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #668cf0;
/* rgb */ color: rgb(102, 140, 240);
/* oklch */ color: oklch(65.9% 0.155 266.5);

Tailwind

colors: {
  custom: {
    50: '#9cadf5',
    500: '#668cf0',
    950: '#000000',
  },
}

SCSS

$custom: #668cf0;
$custom-light: #9cadf5;
$custom-dark: #000000;

JSON

{
  "hex": "#668cf0",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 240
  },
  "hsl": {
    "h": 223.478,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.65876,
    "c": 0.15493,
    "h": 266.5
  },
  "luminance": 0.27872
}

Semantic roles & 50–950 ramp

primary

#668CF0

secondary

#EFE3C3

accent

#A307DF

background

#FAFAFF

surface

#F4F4FE

border

#CECED6

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #668CF0

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

Preview Lab → · Contrast checker → · Palette generator →