#665CA6#665CA6

#665CA6 is a mid, moderate blue. Relative luminance 0.132; OKLCH L 51.8% C 0.114 H 287.9°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#665CA6
RGB	rgb(102, 92, 166)
HSL	hsl(248, 29%, 51%)
HSV	hsv(248, 45%, 65%)
CMYK	cmyk(38.6%, 44.6%, 0%, 34.9%)
CIE-LAB	lab(43.11, 22.37, -38.61)
CIE-LCH	lch(43.11, 44.62, 300.08°)
OKLab	oklab(51.84% 0.0352 -0.1088)
OKLCH	oklch(51.84% 0.114 287.9)
XYZ	xyz(16.1877, 13.2318, 37.7701)
Luminance	0.1323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CA6 #9CA65C

analogous

#5C77A6 #665CA6 #8B5CA6

triadic

#665CA6 #A6665C #5CA666

tetradic

#665CA6 #A65C77 #9CA65C #5CA68B

square

#665CA6 #A65C77 #9CA65C #5CA68B

split-complementary

#665CA6 #A68B5C #77A65C

monochromatic

#353058 #4D467F #665CA6 #8B84BC #B0ABD1

Accessibility & contrast

On white

5.76

#665CA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#665CA6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CA6

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CA6	#FFFFFF	#000000	##FFFFFF
##665CA6	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)

#4268A9

Deuteranopia (green-blind)

#4264A4

Tritanopia (blue-blind)

#556A79

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #665ca6;
/* rgb */ color: rgb(102, 92, 166);
/* oklch */ color: oklch(51.8% 0.114 287.9);

Tailwind

colors: {
  custom: {
    50: '#948ac1',
    500: '#665ca6',
    950: '#000000',
  },
}

SCSS

$custom: #665ca6;
$custom-light: #948ac1;
$custom-dark: #000000;

JSON

{
  "hex": "#665ca6",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 166
  },
  "hsl": {
    "h": 248.108,
    "s": 29.365,
    "l": 50.588
  },
  "oklch": {
    "l": 0.51843,
    "c": 0.1144,
    "h": 287.9
  },
  "luminance": 0.13232
}

Semantic roles & 50–950 ramp

primary

#665CA6

secondary

#BBBF9E

accent

#C662B8

background

#F9F8FB

surface

#F2F0F7

border

#CCCBD0

text

#0D0B12

muted

#7E7C81

Preview Lab

Preview with #665CA6

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

Preview Lab → · Contrast checker → · Palette generator →