#665AAF#665AAF

#665AAF is a mid, vivid blue. Relative luminance 0.132; OKLCH L 52.0% C 0.130 H 287.4°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#665AAF
RGB	rgb(102, 90, 175)
HSL	hsl(248, 35%, 52%)
HSV	hsv(248, 49%, 69%)
CMYK	cmyk(41.7%, 48.6%, 0%, 31.4%)
CIE-LAB	lab(43.11, 26.21, -43.92)
CIE-LCH	lch(43.11, 51.15, 300.83°)
OKLab	oklab(52.01% 0.0391 -0.1244)
OKLCH	oklch(52.01% 0.13 287.4)
XYZ	xyz(16.8713, 13.2317, 42.2142)
Luminance	0.1323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AAF #A3AF5A

analogous

#5A78AF #665AAF #915AAF

triadic

#665AAF #AF665A #5AAF66

tetradic

#665AAF #AF5A78 #A3AF5A #5AAF91

square

#665AAF #AF5A78 #A3AF5A #5AAF91

split-complementary

#665AAF #AF915A #78AF5A

monochromatic

#362F60 #4D4389 #665AAF #8C83C3 #B2ACD7

Accessibility & contrast

On white

5.76

#665AAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#665AAF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AAF

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AAF	#FFFFFF	#000000	##FFFFFF
##665AAF	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3868B2

Deuteranopia (green-blind)

#3864AD

Tritanopia (blue-blind)

#516B7C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #665aaf;
/* rgb */ color: rgb(102, 90, 175);
/* oklch */ color: oklch(52.0% 0.130 287.4);

Tailwind

colors: {
  custom: {
    50: '#9589c7',
    500: '#665aaf',
    950: '#000000',
  },
}

SCSS

$custom: #665aaf;
$custom-light: #9589c7;
$custom-dark: #000000;

JSON

{
  "hex": "#665aaf",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 175
  },
  "hsl": {
    "h": 248.471,
    "s": 34.694,
    "l": 51.961
  },
  "oklch": {
    "l": 0.52008,
    "c": 0.13039,
    "h": 287.4
  },
  "luminance": 0.13232
}

Semantic roles & 50–950 ramp

primary

#665AAF

secondary

#C0C5A0

accent

#CB5DBB

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0E0B13

muted

#7E7C82

Preview Lab

Preview with #665AAF

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

Preview Lab → · Contrast checker → · Palette generator →