#668BEF#668BEF

#668BEF is a light, vivid blue. Relative luminance 0.275; OKLCH L 65.6% C 0.155 H 266.8°. Best body text is #000000 at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#668BEF
RGB	rgb(102, 139, 239)
HSL	hsl(224, 81%, 67%)
HSV	hsv(224, 57%, 94%)
CMYK	cmyk(57.3%, 41.8%, 0%, 6.3%)
CIE-LAB	lab(59.45, 16.29, -54.32)
CIE-LCH	lch(59.45, 56.71, 286.69°)
OKLab	oklab(65.61% -0.0085 -0.1545)
OKLCH	oklch(65.61% 0.155 266.8)
XYZ	xyz(30.2868, 27.5196, 85.3604)
Luminance	0.2752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668BEF #EFCA66

analogous

#66CFEF #668BEF #8666EF

triadic

#668BEF #EF668B #8BEF66

tetradic

#668BEF #EF66CF #EFCA66 #66EF86

square

#668BEF #EF66CF #EFCA66 #66EF86

split-complementary

#668BEF #EF8666 #CFEF66

monochromatic

#1545C6 #2F61E9 #668BEF #9DB5F5 #D5DFFB

Accessibility & contrast

On white

3.23

#668BEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.50

#668BEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668BEF

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668BEF	#FFFFFF	#000000	##000000
##668BEF	1.00	3.23	6.50	6.50
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.50	21.00	1.00	1.00
##000000	6.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F96F3

Deuteranopia (green-blind)

#4D89ED

Tritanopia (blue-blind)

#00A1B1

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #668bef;
/* rgb */ color: rgb(102, 139, 239);
/* oklch */ color: oklch(65.6% 0.155 266.8);

Tailwind

colors: {
  custom: {
    50: '#9bacf5',
    500: '#668bef',
    950: '#000000',
  },
}

SCSS

$custom: #668bef;
$custom-light: #9bacf5;
$custom-dark: #000000;

JSON

{
  "hex": "#668bef",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 239
  },
  "hsl": {
    "h": 223.796,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.65613,
    "c": 0.15476,
    "h": 266.8
  },
  "luminance": 0.27522
}

Semantic roles & 50–950 ramp

primary

#668BEF

secondary

#EEE2C2

accent

#A408DD

background

#FAFAFF

surface

#F4F4FE

border

#CECED6

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #668BEF

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

Preview Lab → · Contrast checker → · Palette generator →