#665CC9#665CC9

#665CC9 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 54.1% C 0.164 H 283.6°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#665CC9
RGB	rgb(102, 92, 201)
HSL	hsl(246, 50%, 57%)
HSV	hsv(246, 54%, 79%)
CMYK	cmyk(49.3%, 54.2%, 0%, 21.2%)
CIE-LAB	lab(45.21, 32.78, -55.68)
CIE-LCH	lch(45.21, 64.61, 300.48°)
OKLab	oklab(54.1% 0.0386 -0.1589)
OKLCH	oklch(54.1% 0.164 283.6)
XYZ	xyz(19.8461, 14.6951, 57.0377)
Luminance	0.1470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CC9 #BFC95C

analogous

#5C88C9 #665CC9 #9D5CC9

triadic

#665CC9 #C9665C #5CC966

tetradic

#665CC9 #C95C88 #BFC95C #5CC99D

square

#665CC9 #C95C88 #BFC95C #5CC99D

split-complementary

#665CC9 #C99D5C #88C95C

monochromatic

#322A80 #443AAE #665CC9 #918AD8 #BCB8E7

Accessibility & contrast

On white

5.33

#665CC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#665CC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CC9

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CC9	#FFFFFF	#000000	##FFFFFF
##665CC9	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E6ECD

Deuteranopia (green-blind)

#1667C7

Tritanopia (blue-blind)

#427489

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #665cc9;
/* rgb */ color: rgb(102, 92, 201);
/* oklch */ color: oklch(54.1% 0.164 283.6);

Tailwind

colors: {
  custom: {
    50: '#988ada',
    500: '#665cc9',
    950: '#000000',
  },
}

SCSS

$custom: #665cc9;
$custom-light: #988ada;
$custom-dark: #000000;

JSON

{
  "hex": "#665cc9",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 201
  },
  "hsl": {
    "h": 245.505,
    "s": 50.23,
    "l": 57.451
  },
  "oklch": {
    "l": 0.541,
    "c": 0.16354,
    "h": 283.6
  },
  "luminance": 0.14696
}

Semantic roles & 50–950 ramp

primary

#665CC9

secondary

#D2D6AA

accent

#DA4ECD

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #665CC9

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

Preview Lab → · Contrast checker → · Palette generator →