#664FBB#664FBB

#664FBB is a mid, vivid violet. Relative luminance 0.120; OKLCH L 50.8% C 0.163 H 289.1°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#664FBB
RGB	rgb(102, 79, 187)
HSL	hsl(253, 44%, 52%)
HSV	hsv(253, 58%, 73%)
CMYK	cmyk(45.5%, 57.8%, 0%, 26.7%)
CIE-LAB	lab(41.22, 36.40, -53.99)
CIE-LCH	lch(41.22, 65.11, 303.99°)
OKLab	oklab(50.85% 0.0533 -0.154)
OKLCH	oklch(50.85% 0.163 289.1)
XYZ	xyz(17.2426, 12.0040, 48.4126)
Luminance	0.1201 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664FBB #A4BB4F

analogous

#4F6EBB #664FBB #9C4FBB

triadic

#664FBB #BB664F #4FBB66

tetradic

#664FBB #BB4F6E #A4BB4F #4FBB9C

square

#664FBB #BB4F6E #A4BB4F #4FBB9C

split-complementary

#664FBB #BB9C4F #6EBB4F

monochromatic

#362868 #4C3994 #664FBB #8C7BCC #B3A7DD

Accessibility & contrast

On white

6.17

#664FBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#664FBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664FBB

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664FBB	#FFFFFF	#000000	##FFFFFF
##664FBB	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0263BF

Deuteranopia (green-blind)

#095FB9

Tritanopia (blue-blind)

#4C677D

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #664fbb;
/* rgb */ color: rgb(102, 79, 187);
/* oklch */ color: oklch(50.8% 0.163 289.1);

Tailwind

colors: {
  custom: {
    50: '#9781d0',
    500: '#664fbb',
    950: '#000000',
  },
}

SCSS

$custom: #664fbb;
$custom-light: #9781d0;
$custom-dark: #000000;

JSON

{
  "hex": "#664fbb",
  "rgb": {
    "r": 102,
    "g": 79,
    "b": 187
  },
  "hsl": {
    "h": 252.778,
    "s": 44.262,
    "l": 52.157
  },
  "oklch": {
    "l": 0.50846,
    "c": 0.16295,
    "h": 289.1
  },
  "luminance": 0.12005
}

Semantic roles & 50–950 ramp

primary

#664FBB

secondary

#C0CA9B

accent

#D454B9

background

#F9F7FC

surface

#F2EEF9

border

#CCC9D2

text

#0E0A14

muted

#7E7C82

Preview Lab

Preview with #664FBB

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

Preview Lab → · Contrast checker → · Palette generator →