#668FEF#668FEF

#668FEF is a light, vivid blue. Relative luminance 0.287; OKLCH L 66.4% C 0.150 H 265.1°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#668FEF
RGB	rgb(102, 143, 239)
HSL	hsl(222, 81%, 67%)
HSV	hsv(222, 57%, 94%)
CMYK	cmyk(57.3%, 40.2%, 0%, 6.3%)
CIE-LAB	lab(60.52, 13.91, -52.63)
CIE-LCH	lch(60.52, 54.44, 284.80°)
OKLab	oklab(66.43% -0.0127 -0.1495)
OKLCH	oklch(66.43% 0.15 265.1)
XYZ	xyz(30.8766, 28.6992, 85.5570)
Luminance	0.2870 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668FEF #EFC666

analogous

#66D3EF #668FEF #8266EF

triadic

#668FEF #EF668F #8FEF66

tetradic

#668FEF #EF66D3 #EFC666 #66EF82

square

#668FEF #EF66D3 #EFC666 #66EF82

split-complementary

#668FEF #EF8266 #D3EF66

monochromatic

#154AC6 #2F66E9 #668FEF #9DB8F5 #D5E0FB

Accessibility & contrast

On white

3.12

#668FEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#668FEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668FEF

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668FEF	#FFFFFF	#000000	##000000
##668FEF	1.00	3.12	6.74	6.74
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6699F3

Deuteranopia (green-blind)

#548CED

Tritanopia (blue-blind)

#00A4B3

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #668fef;
/* rgb */ color: rgb(102, 143, 239);
/* oklch */ color: oklch(66.4% 0.150 265.1);

Tailwind

colors: {
  custom: {
    50: '#9baff5',
    500: '#668fef',
    950: '#000000',
  },
}

SCSS

$custom: #668fef;
$custom-light: #9baff5;
$custom-dark: #000000;

JSON

{
  "hex": "#668fef",
  "rgb": {
    "r": 102,
    "g": 143,
    "b": 239
  },
  "hsl": {
    "h": 222.044,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.66431,
    "c": 0.15007,
    "h": 265.1
  },
  "luminance": 0.28702
}

Semantic roles & 50–950 ramp

primary

#668FEF

secondary

#EEE1C2

accent

#9E08DD

background

#FAFAFF

surface

#F4F4FE

border

#CECED6

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #668FEF

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

Preview Lab → · Contrast checker → · Palette generator →