#665CA0#665CA0

#665CA0 is a mid, moderate blue. Relative luminance 0.130; OKLCH L 51.5% C 0.106 H 288.9°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#665CA0
RGB	rgb(102, 92, 160)
HSL	hsl(249, 27%, 49%)
HSV	hsv(249, 43%, 63%)
CMYK	cmyk(36.2%, 42.5%, 0%, 37.3%)
CIE-LAB	lab(42.79, 20.65, -35.56)
CIE-LCH	lch(42.79, 41.13, 300.14°)
OKLab	oklab(51.49% 0.0342 -0.1)
OKLCH	oklch(51.49% 0.106 288.9)
XYZ	xyz(15.6501, 13.0167, 34.9388)
Luminance	0.1302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CA0 #96A05C

analogous

#5C74A0 #665CA0 #885CA0

triadic

#665CA0 #A0665C #5CA066

tetradic

#665CA0 #A05C74 #96A05C #5CA088

square

#665CA0 #A05C74 #96A05C #5CA088

split-complementary

#665CA0 #A0885C #74A05C

monochromatic

#342F52 #4D4679 #665CA0 #8A82B7 #AEA9CD

Accessibility & contrast

On white

5.83

#665CA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#665CA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CA0

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CA0	#FFFFFF	#000000	##FFFFFF
##665CA0	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4666A3

Deuteranopia (green-blind)

#46639E

Tritanopia (blue-blind)

#576976

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #665ca0;
/* rgb */ color: rgb(102, 92, 160);
/* oklch */ color: oklch(51.5% 0.106 288.9);

Tailwind

colors: {
  custom: {
    50: '#948abc',
    500: '#665ca0',
    950: '#000000',
  },
}

SCSS

$custom: #665ca0;
$custom-light: #948abc;
$custom-dark: #000000;

JSON

{
  "hex": "#665ca0",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 160
  },
  "hsl": {
    "h": 248.824,
    "s": 26.984,
    "l": 49.412
  },
  "oklch": {
    "l": 0.51494,
    "c": 0.10564,
    "h": 288.9
  },
  "luminance": 0.13017
}

Semantic roles & 50–950 ramp

primary

#665CA0

secondary

#B7BC9C

accent

#C364B5

background

#F9F8FB

surface

#F2F0F6

border

#CCCBD0

text

#0D0B12

muted

#7E7C81

Preview Lab

Preview with #665CA0

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

Preview Lab → · Contrast checker → · Palette generator →