#665AB0#665AB0

#665AB0 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.1% C 0.132 H 287.3°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#665AB0
RGB	rgb(102, 90, 176)
HSL	hsl(248, 35%, 52%)
HSV	hsv(248, 49%, 69%)
CMYK	cmyk(42%, 48.9%, 0%, 31%)
CIE-LAB	lab(43.17, 26.51, -44.42)
CIE-LCH	lch(43.17, 51.72, 300.83°)
OKLab	oklab(52.07% 0.0392 -0.1258)
OKLCH	oklch(52.07% 0.132 287.3)
XYZ	xyz(16.9699, 13.2711, 42.7333)
Luminance	0.1327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AB0 #A4B05A

analogous

#5A79B0 #665AB0 #915AB0

triadic

#665AB0 #B0665A #5AB066

tetradic

#665AB0 #B05A79 #A4B05A #5AB091

square

#665AB0 #B05A79 #A4B05A #5AB091

split-complementary

#665AB0 #B0915A #79B05A

monochromatic

#362E61 #4C428A #665AB0 #8C83C4 #B3ADD8

Accessibility & contrast

On white

5.75

#665AB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#665AB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AB0

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AB0	#FFFFFF	#000000	##FFFFFF
##665AB0	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3868B3

Deuteranopia (green-blind)

#3764AE

Tritanopia (blue-blind)

#516C7C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #665ab0;
/* rgb */ color: rgb(102, 90, 176);
/* oklch */ color: oklch(52.1% 0.132 287.3);

Tailwind

colors: {
  custom: {
    50: '#9689c8',
    500: '#665ab0',
    950: '#000000',
  },
}

SCSS

$custom: #665ab0;
$custom-light: #9689c8;
$custom-dark: #000000;

JSON

{
  "hex": "#665ab0",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 176
  },
  "hsl": {
    "h": 248.372,
    "s": 35.246,
    "l": 52.157
  },
  "oklch": {
    "l": 0.52071,
    "c": 0.1318,
    "h": 287.3
  },
  "luminance": 0.13272
}

Semantic roles & 50–950 ramp

primary

#665AB0

secondary

#C0C6A0

accent

#CB5DBC

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0E0B13

muted

#7E7C82

Preview Lab

Preview with #665AB0

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

Preview Lab → · Contrast checker → · Palette generator →