#664FCF#664FCF

#664FCF is a mid, vivid violet. Relative luminance 0.129; OKLCH L 52.3% C 0.189 H 286.1°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#664FCF
RGB	rgb(102, 79, 207)
HSL	hsl(251, 57%, 56%)
HSV	hsv(251, 62%, 81%)
CMYK	cmyk(50.7%, 61.8%, 0%, 18.8%)
CIE-LAB	lab(42.64, 42.30, -63.30)
CIE-LCH	lch(42.64, 76.13, 303.75°)
OKLab	oklab(52.34% 0.0525 -0.1814)
OKLCH	oklch(52.34% 0.189 286.1)
XYZ	xyz(19.5346, 12.9208, 60.4840)
Luminance	0.1292 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664FCF #B8CF4F

analogous

#4F78CF #664FCF #A64FCF

triadic

#664FCF #CF664F #4FCF66

tetradic

#664FCF #CF4F78 #B8CF4F #4FCFA6

square

#664FCF #CF4F78 #B8CF4F #4FCFA6

split-complementary

#664FCF #CFA64F #78CF4F

monochromatic

#342381 #4730B1 #664FCF #907FDC #BAAFE9

Accessibility & contrast

On white

5.86

#664FCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#664FCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664FCF

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664FCF	#FFFFFF	#000000	##FFFFFF
##664FCF	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D3

Deuteranopia (green-blind)

#0061CC

Tritanopia (blue-blind)

#3F6E88

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #664fcf;
/* rgb */ color: rgb(102, 79, 207);
/* oklch */ color: oklch(52.3% 0.189 286.1);

Tailwind

colors: {
  custom: {
    50: '#9a81df',
    500: '#664fcf',
    950: '#000000',
  },
}

SCSS

$custom: #664fcf;
$custom-light: #9a81df;
$custom-dark: #000000;

JSON

{
  "hex": "#664fcf",
  "rgb": {
    "r": 102,
    "g": 79,
    "b": 207
  },
  "hsl": {
    "h": 250.781,
    "s": 57.143,
    "l": 56.078
  },
  "oklch": {
    "l": 0.52338,
    "c": 0.18881,
    "h": 286.1
  },
  "luminance": 0.12922
}

Semantic roles & 50–950 ramp

primary

#664FCF

secondary

#CED7A2

accent

#E047C5

background

#FAF8FD

surface

#F3EFFB

border

#CDCAD4

text

#0F0A15

muted

#7F7C83

Preview Lab

Preview with #664FCF

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

Preview Lab → · Contrast checker → · Palette generator →