#665CA5#665CA5

#665CA5 is a mid, moderate blue. Relative luminance 0.132; OKLCH L 51.8% C 0.113 H 288.1°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#665CA5
RGB	rgb(102, 92, 165)
HSL	hsl(248, 29%, 50%)
HSV	hsv(248, 44%, 65%)
CMYK	cmyk(38.2%, 44.2%, 0%, 35.3%)
CIE-LAB	lab(43.06, 22.08, -38.11)
CIE-LCH	lch(43.06, 44.04, 300.09°)
OKLab	oklab(51.78% 0.0351 -0.1074)
OKLCH	oklch(51.78% 0.113 288.1)
XYZ	xyz(16.0963, 13.1952, 37.2889)
Luminance	0.1320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CA5 #9BA55C

analogous

#5C76A5 #665CA5 #8A5CA5

triadic

#665CA5 #A5665C #5CA566

tetradic

#665CA5 #A55C76 #9BA55C #5CA58A

square

#665CA5 #A55C76 #9BA55C #5CA58A

split-complementary

#665CA5 #A58A5C #76A55C

monochromatic

#353057 #4D467E #665CA5 #8B83BB #B0ABD1

Accessibility & contrast

On white

5.77

#665CA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#665CA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CA5

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CA5	#FFFFFF	#000000	##FFFFFF
##665CA5	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4367A8

Deuteranopia (green-blind)

#4264A3

Tritanopia (blue-blind)

#556A78

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #665ca5;
/* rgb */ color: rgb(102, 92, 165);
/* oklch */ color: oklch(51.8% 0.113 288.1);

Tailwind

colors: {
  custom: {
    50: '#948ac0',
    500: '#665ca5',
    950: '#000000',
  },
}

SCSS

$custom: #665ca5;
$custom-light: #948ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#665ca5",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 165
  },
  "hsl": {
    "h": 248.219,
    "s": 28.854,
    "l": 50.392
  },
  "oklch": {
    "l": 0.51784,
    "c": 0.11295,
    "h": 288.1
  },
  "luminance": 0.13196
}

Semantic roles & 50–950 ramp

primary

#665CA5

secondary

#BABF9E

accent

#C563B8

background

#F9F8FB

surface

#F2F0F7

border

#CCCBD0

text

#0D0B12

muted

#7E7C81

Preview Lab

Preview with #665CA5

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

Preview Lab → · Contrast checker → · Palette generator →