#665AE5#665AE5

#665AE5 is a mid, highly saturated blue. Relative luminance 0.158; OKLCH L 55.8% C 0.203 H 281.5°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#665AE5
RGB	rgb(102, 90, 229)
HSL	hsl(245, 73%, 63%)
HSV	hsv(245, 61%, 90%)
CMYK	cmyk(55.5%, 60.7%, 0%, 10.2%)
CIE-LAB	lab(46.70, 42.55, -69.25)
CIE-LCH	lch(46.70, 81.28, 301.56°)
OKLab	oklab(55.82% 0.0403 -0.1989)
OKLCH	oklch(55.82% 0.203 281.5)
XYZ	xyz(23.2741, 15.7928, 75.9354)
Luminance	0.1579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AE5 #D9E55A

analogous

#5A93E5 #665AE5 #AC5AE5

triadic

#665AE5 #E5665A #5AE566

tetradic

#665AE5 #E55A93 #D9E55A #5AE5AC

square

#665AE5 #E55A93 #D9E55A #5AE5AC

split-complementary

#665AE5 #E5AC5A #93E55A

monochromatic

#271BAA #3525DD #665AE5 #978FED #C8C4F6

Accessibility & contrast

On white

5.05

#665AE5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#665AE5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AE5

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AE5	#FFFFFF	#000000	##FFFFFF
##665AE5	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074EA

Deuteranopia (green-blind)

#006AE2

Tritanopia (blue-blind)

#257C97

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #665ae5;
/* rgb */ color: rgb(102, 90, 229);
/* oklch */ color: oklch(55.8% 0.203 281.5);

Tailwind

colors: {
  custom: {
    50: '#9c89ee',
    500: '#665ae5',
    950: '#000000',
  },
}

SCSS

$custom: #665ae5;
$custom-light: #9c89ee;
$custom-dark: #000000;

JSON

{
  "hex": "#665ae5",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 229
  },
  "hsl": {
    "h": 245.18,
    "s": 72.775,
    "l": 62.549
  },
  "oklch": {
    "l": 0.55816,
    "c": 0.20291,
    "h": 281.5
  },
  "luminance": 0.15794
}

Semantic roles & 50–950 ramp

primary

#665AE5

secondary

#E2E7B4

accent

#D511C4

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0B16

muted

#7F7C84

Preview Lab

Preview with #665AE5

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

Preview Lab → · Contrast checker → · Palette generator →