#666BF7#666BF7

#666BF7 is a mid, highly saturated blue. Relative luminance 0.201; OKLCH L 60.1% C 0.205 H 276.7°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#666BF7
RGB	rgb(102, 107, 247)
HSL	hsl(238, 90%, 68%)
HSV	hsv(238, 59%, 97%)
CMYK	cmyk(58.7%, 56.7%, 0%, 3.1%)
CIE-LAB	lab(51.90, 38.12, -70.91)
CIE-LCH	lch(51.90, 80.51, 298.26°)
OKLab	oklab(60.06% 0.0241 -0.2036)
OKLCH	oklch(60.06% 0.205 276.7)
XYZ	xyz(27.5203, 20.0535, 90.3981)
Luminance	0.2006 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666BF7 #F7F266

analogous

#66B3F7 #666BF7 #A966F7

triadic

#666BF7 #F7666B #6BF766

tetradic

#666BF7 #F766B3 #F7F266 #66F7A9

square

#666BF7 #F766B3 #F7F266 #66F7A9

split-complementary

#666BF7 #F7A966 #B3F766

monochromatic

#0B12D7 #2C33F4 #666BF7 #A0A3FA #DADCFD

Accessibility & contrast

On white

4.19

#666BF7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#666BF7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #666BF7

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666BF7	#FFFFFF	#000000	##000000
##666BF7	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0082FC

Deuteranopia (green-blind)

#0076F4

Tritanopia (blue-blind)

#008CA7

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #666bf7;
/* rgb */ color: rgb(102, 107, 247);
/* oklch */ color: oklch(60.1% 0.205 276.7);

Tailwind

colors: {
  custom: {
    50: '#9e95fb',
    500: '#666bf7',
    950: '#000000',
  },
}

SCSS

$custom: #666bf7;
$custom-light: #9e95fb;
$custom-dark: #000000;

JSON

{
  "hex": "#666bf7",
  "rgb": {
    "r": 102,
    "g": 107,
    "b": 247
  },
  "hsl": {
    "h": 237.931,
    "s": 90.062,
    "l": 68.431
  },
  "oklch": {
    "l": 0.60056,
    "c": 0.20503,
    "h": 276.7
  },
  "luminance": 0.20056
}

Semantic roles & 50–950 ramp

primary

#666BF7

secondary

#F2F1C7

accent

#DE00E6

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#100D17

muted

#7F7E85

Preview Lab

Preview with #666BF7

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

Preview Lab → · Contrast checker → · Palette generator →