#668CFF#668CFF

#668CFF is a light, vivid blue. Relative luminance 0.288; OKLCH L 66.8% C 0.175 H 267.7°. Best body text is #000000 at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#668CFF
RGB	rgb(102, 140, 255)
HSL	hsl(225, 100%, 70%)
HSV	hsv(225, 60%, 100%)
CMYK	cmyk(60%, 45.1%, 0%, 0%)
CIE-LAB	lab(60.60, 20.89, -61.30)
CIE-LCH	lch(60.60, 64.76, 288.81°)
OKLab	oklab(66.78% -0.0069 -0.175)
OKLCH	oklch(66.78% 0.175 267.7)
XYZ	xyz(32.9014, 28.7982, 98.4131)
Luminance	0.2880 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CFF #FFD966

analogous

#66D9FF #668CFF #8C66FF

triadic

#668CFF #FF668C #8CFF66

tetradic

#668CFF #FF66D9 #FFD966 #66FF8C

square

#668CFF #FF66D9 #FFD966 #66FF8C

split-complementary

#668CFF #FF8C66 #D9FF66

monochromatic

#003AEB #295EFF #668CFF #A3BAFF #E0E8FF

Accessibility & contrast

On white

3.11

#668CFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.76

#668CFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CFF

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CFF	#FFFFFF	#000000	##000000
##668CFF	1.00	3.11	6.76	6.76
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.76	21.00	1.00	1.00
##000000	6.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5599FF

Deuteranopia (green-blind)

#3D8CFD

Tritanopia (blue-blind)

#00A6B9

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #668cff;
/* rgb */ color: rgb(102, 140, 255);
/* oklch */ color: oklch(66.8% 0.175 267.7);

Tailwind

colors: {
  custom: {
    50: '#9eadff',
    500: '#668cff',
    950: '#000000',
  },
}

SCSS

$custom: #668cff;
$custom-light: #9eadff;
$custom-dark: #000000;

JSON

{
  "hex": "#668cff",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 255
  },
  "hsl": {
    "h": 225.098,
    "s": 100,
    "l": 70
  },
  "oklch": {
    "l": 0.66783,
    "c": 0.17513,
    "h": 267.7
  },
  "luminance": 0.28801
}

Semantic roles & 50–950 ramp

primary

#668CFF

secondary

#F6EBCB

accent

#AC00E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#101018

muted

#7F7F86

Preview Lab

Preview with #668CFF

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

Preview Lab → · Contrast checker → · Palette generator →