#665CA3#665CA3

#665CA3 is a mid, moderate blue. Relative luminance 0.131; OKLCH L 51.7% C 0.110 H 288.4°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#665CA3
RGB	rgb(102, 92, 163)
HSL	hsl(248, 28%, 50%)
HSV	hsv(248, 44%, 64%)
CMYK	cmyk(37.4%, 43.6%, 0%, 36.1%)
CIE-LAB	lab(42.95, 21.51, -37.09)
CIE-LCH	lch(42.95, 42.88, 300.10°)
OKLab	oklab(51.67% 0.0347 -0.1044)
OKLCH	oklch(51.67% 0.11 288.4)
XYZ	xyz(15.9157, 13.1230, 36.3377)
Luminance	0.1312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CA3 #99A35C

analogous

#5C75A3 #665CA3 #8A5CA3

triadic

#665CA3 #A3665C #5CA366

tetradic

#665CA3 #A35C75 #99A35C #5CA38A

square

#665CA3 #A35C75 #99A35C #5CA38A

split-complementary

#665CA3 #A38A5C #75A35C

monochromatic

#353055 #4E467C #665CA3 #8B83B9 #AFAACF

Accessibility & contrast

On white

5.79

#665CA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#665CA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CA3

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CA3	#FFFFFF	#000000	##FFFFFF
##665CA3	1.00	5.79	3.62	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4467A6

Deuteranopia (green-blind)

#4464A1

Tritanopia (blue-blind)

#566A77

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #665ca3;
/* rgb */ color: rgb(102, 92, 163);
/* oklch */ color: oklch(51.7% 0.110 288.4);

Tailwind

colors: {
  custom: {
    50: '#948abe',
    500: '#665ca3',
    950: '#000000',
  },
}

SCSS

$custom: #665ca3;
$custom-light: #948abe;
$custom-dark: #000000;

JSON

{
  "hex": "#665ca3",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 163
  },
  "hsl": {
    "h": 248.451,
    "s": 27.843,
    "l": 50
  },
  "oklch": {
    "l": 0.51667,
    "c": 0.11003,
    "h": 288.4
  },
  "luminance": 0.13123
}

Semantic roles & 50–950 ramp

primary

#665CA3

secondary

#B9BD9D

accent

#C464B7

background

#F9F8FB

surface

#F2F0F7

border

#CCCBD0

text

#0D0B12

muted

#7E7C81

Preview Lab

Preview with #665CA3

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

Preview Lab → · Contrast checker → · Palette generator →