#665AE3#665AE3

#665AE3 is a mid, highly saturated blue. Relative luminance 0.157; OKLCH L 55.7% C 0.200 H 281.6°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#665AE3
RGB	rgb(102, 90, 227)
HSL	hsl(245, 71%, 62%)
HSV	hsv(245, 60%, 89%)
CMYK	cmyk(55.1%, 60.4%, 0%, 11%)
CIE-LAB	lab(46.55, 41.93, -68.36)
CIE-LCH	lch(46.55, 80.20, 301.52°)
OKLab	oklab(55.66% 0.0404 -0.1962)
OKLCH	oklch(55.66% 0.2 281.6)
XYZ	xyz(22.9965, 15.6817, 74.4732)
Luminance	0.1568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AE3 #D7E35A

analogous

#5A93E3 #665AE3 #AA5AE3

triadic

#665AE3 #E3665A #5AE366

tetradic

#665AE3 #E35A93 #D7E35A #5AE3AA

square

#665AE3 #E35A93 #D7E35A #5AE3AA

split-complementary

#665AE3 #E3AA5A #93E35A

monochromatic

#281CA6 #3526DA #665AE3 #978EEC #C7C3F5

Accessibility & contrast

On white

5.08

#665AE3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#665AE3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AE3

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AE3	#FFFFFF	#000000	##FFFFFF
##665AE3	1.00	5.08	4.14	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073E7

Deuteranopia (green-blind)

#0069E0

Tritanopia (blue-blind)

#287B96

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #665ae3;
/* rgb */ color: rgb(102, 90, 227);
/* oklch */ color: oklch(55.7% 0.200 281.6);

Tailwind

colors: {
  custom: {
    50: '#9c89ed',
    500: '#665ae3',
    950: '#000000',
  },
}

SCSS

$custom: #665ae3;
$custom-light: #9c89ed;
$custom-dark: #000000;

JSON

{
  "hex": "#665ae3",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 227
  },
  "hsl": {
    "h": 245.255,
    "s": 70.984,
    "l": 62.157
  },
  "oklch": {
    "l": 0.55662,
    "c": 0.20035,
    "h": 281.6
  },
  "luminance": 0.15683
}

Semantic roles & 50–950 ramp

primary

#665AE3

secondary

#E1E6B3

accent

#D312C2

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0B16

muted

#7F7C84

Preview Lab

Preview with #665AE3

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

Preview Lab → · Contrast checker → · Palette generator →