#665B9B#665B9B

#665B9B is a mid, moderate violet. Relative luminance 0.127; OKLCH L 51.0% C 0.100 H 290.3°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#665B9B
RGB	rgb(102, 91, 155)
HSL	hsl(250, 26%, 48%)
HSV	hsv(250, 41%, 61%)
CMYK	cmyk(34.2%, 41.3%, 0%, 39.2%)
CIE-LAB	lab(42.27, 19.86, -33.41)
CIE-LCH	lch(42.27, 38.87, 300.73°)
OKLab	oklab(51.01% 0.0346 -0.0937)
OKLCH	oklch(51.01% 0.1 290.3)
XYZ	xyz(15.1354, 12.6732, 32.6527)
Luminance	0.1267 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665B9B #909B5B

analogous

#5B709B #665B9B #865B9B

triadic

#665B9B #9B665B #5B9B66

tetradic

#665B9B #9B5B70 #909B5B #5B9B86

square

#665B9B #9B5B70 #909B5B #5B9B86

split-complementary

#665B9B #9B865B #709B5B

monochromatic

#332E4E #4D4474 #665B9B #887FB4 #ACA6CB

Accessibility & contrast

On white

5.94

#665B9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#665B9B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665B9B

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665B9B	#FFFFFF	#000000	##FFFFFF
##665B9B	1.00	5.94	3.53	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47659D

Deuteranopia (green-blind)

#486299

Tritanopia (blue-blind)

#596773

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #665b9b;
/* rgb */ color: rgb(102, 91, 155);
/* oklch */ color: oklch(51.0% 0.100 290.3);

Tailwind

colors: {
  custom: {
    50: '#9489b9',
    500: '#665b9b',
    950: '#000000',
  },
}

SCSS

$custom: #665b9b;
$custom-light: #9489b9;
$custom-dark: #000000;

JSON

{
  "hex": "#665b9b",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 155
  },
  "hsl": {
    "h": 250.313,
    "s": 26.016,
    "l": 48.235
  },
  "oklch": {
    "l": 0.51012,
    "c": 0.09989,
    "h": 290.3
  },
  "luminance": 0.12674
}

Semantic roles & 50–950 ramp

primary

#665B9B

secondary

#B3B999

accent

#C265B2

background

#F9F8FB

surface

#F1F0F6

border

#CBCBD0

text

#0D0B11

muted

#7E7C80

Preview Lab

Preview with #665B9B

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

Preview Lab → · Contrast checker → · Palette generator →