#665AC7#665AC7

#665AC7 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.6% C 0.164 H 284.4°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#665AC7
RGB	rgb(102, 90, 199)
HSL	hsl(247, 49%, 57%)
HSV	hsv(247, 55%, 78%)
CMYK	cmyk(48.7%, 54.8%, 0%, 22%)
CIE-LAB	lab(44.60, 33.38, -55.51)
CIE-LCH	lch(44.60, 64.78, 301.02°)
OKLab	oklab(53.6% 0.0408 -0.1584)
OKLCH	oklch(53.6% 0.164 284.4)
XYZ	xyz(19.4414, 14.2597, 55.7498)
Luminance	0.1426 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AC7 #BBC75A

analogous

#5A85C7 #665AC7 #9D5AC7

triadic

#665AC7 #C7665A #5AC766

tetradic

#665AC7 #C75A85 #BBC75A #5AC79D

square

#665AC7 #C75A85 #BBC75A #5AC79D

split-complementary

#665AC7 #C79D5A #85C75A

monochromatic

#332A7C #463AAA #665AC7 #9088D7 #BBB5E6

Accessibility & contrast

On white

5.45

#665AC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#665AC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AC7

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AC7	#FFFFFF	#000000	##FFFFFF
##665AC7	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B6DCB

Deuteranopia (green-blind)

#1366C5

Tritanopia (blue-blind)

#437288

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665ac7;
/* rgb */ color: rgb(102, 90, 199);
/* oklch */ color: oklch(53.6% 0.164 284.4);

Tailwind

colors: {
  custom: {
    50: '#9889d9',
    500: '#665ac7',
    950: '#000000',
  },
}

SCSS

$custom: #665ac7;
$custom-light: #9889d9;
$custom-dark: #000000;

JSON

{
  "hex": "#665ac7",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 199
  },
  "hsl": {
    "h": 246.606,
    "s": 49.321,
    "l": 56.667
  },
  "oklch": {
    "l": 0.53604,
    "c": 0.1636,
    "h": 284.4
  },
  "luminance": 0.14261
}

Semantic roles & 50–950 ramp

primary

#665AC7

secondary

#D0D5A8

accent

#D94FCA

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #665AC7

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

Preview Lab → · Contrast checker → · Palette generator →