#665ACB#665ACB

#665ACB is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.9% C 0.169 H 284.0°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#665ACB
RGB	rgb(102, 90, 203)
HSL	hsl(246, 52%, 57%)
HSV	hsv(246, 56%, 80%)
CMYK	cmyk(49.8%, 55.7%, 0%, 20.4%)
CIE-LAB	lab(44.87, 34.59, -57.39)
CIE-LCH	lch(44.87, 67.01, 301.08°)
OKLab	oklab(53.89% 0.0409 -0.164)
OKLCH	oklch(53.89% 0.169 284)
XYZ	xyz(19.9119, 14.4479, 58.2279)
Luminance	0.1445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665ACB #BFCB5A

analogous

#5A86CB #665ACB #9F5ACB

triadic

#665ACB #CB665A #5ACB66

tetradic

#665ACB #CB5A86 #BFCB5A #5ACB9F

square

#665ACB #CB5A86 #BFCB5A #5ACB9F

split-complementary

#665ACB #CB9F5A #86CB5A

monochromatic

#322982 #4438B0 #665ACB #9189DA #BCB7E8

Accessibility & contrast

On white

5.40

#665ACB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#665ACB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665ACB

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665ACB	#FFFFFF	#000000	##FFFFFF
##665ACB	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#116ECF

Deuteranopia (green-blind)

#0267C9

Tritanopia (blue-blind)

#41738A

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #665acb;
/* rgb */ color: rgb(102, 90, 203);
/* oklch */ color: oklch(53.9% 0.169 284.0);

Tailwind

colors: {
  custom: {
    50: '#9989dc',
    500: '#665acb',
    950: '#000000',
  },
}

SCSS

$custom: #665acb;
$custom-light: #9989dc;
$custom-dark: #000000;

JSON

{
  "hex": "#665acb",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 203
  },
  "hsl": {
    "h": 246.372,
    "s": 52.074,
    "l": 57.451
  },
  "oklch": {
    "l": 0.53885,
    "c": 0.16898,
    "h": 284
  },
  "luminance": 0.14449
}

Semantic roles & 50–950 ramp

primary

#665ACB

secondary

#D2D7AA

accent

#DC4CCC

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #665ACB

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

Preview Lab → · Contrast checker → · Palette generator →