#665BD8#665BD8

#665BD8 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 55.0% C 0.185 H 282.4°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#665BD8
RGB	rgb(102, 91, 216)
HSL	hsl(245, 62%, 60%)
HSV	hsv(245, 58%, 85%)
CMYK	cmyk(52.8%, 57.9%, 0%, 15.3%)
CIE-LAB	lab(45.99, 37.97, -63.02)
CIE-LCH	lch(45.99, 73.58, 301.06°)
OKLab	oklab(55% 0.0398 -0.1805)
OKLCH	oklch(55% 0.185 282.4)
XYZ	xyz(21.6115, 15.2636, 66.7598)
Luminance	0.1527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BD8 #CDD85B

analogous

#5B8ED8 #665BD8 #A45BD8

triadic

#665BD8 #D8665B #5BD866

tetradic

#665BD8 #D85B8E #CDD85B #5BD8A4

square

#665BD8 #D85B8E #CDD85B #5BD8A4

split-complementary

#665BD8 #D8A45B #8ED85B

monochromatic

#2D2395 #3D2FC7 #665BD8 #948CE4 #C2BEF0

Accessibility & contrast

On white

5.18

#665BD8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#665BD8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BD8

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BD8	#FFFFFF	#000000	##FFFFFF
##665BD8	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DC

Deuteranopia (green-blind)

#0069D5

Tritanopia (blue-blind)

#357891

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #665bd8;
/* rgb */ color: rgb(102, 91, 216);
/* oklch */ color: oklch(55.0% 0.185 282.4);

Tailwind

colors: {
  custom: {
    50: '#9a8ae5',
    500: '#665bd8',
    950: '#000000',
  },
}

SCSS

$custom: #665bd8;
$custom-light: #9a8ae5;
$custom-dark: #000000;

JSON

{
  "hex": "#665bd8",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 216
  },
  "hsl": {
    "h": 245.28,
    "s": 61.576,
    "l": 60.196
  },
  "oklch": {
    "l": 0.55,
    "c": 0.18486,
    "h": 282.4
  },
  "luminance": 0.15265
}

Semantic roles & 50–950 ramp

primary

#665BD8

secondary

#DBDFAF

accent

#C91CBA

background

#FAF8FE

surface

#F3F0FC

border

#CDCBD5

text

#0F0B16

muted

#7F7C84

Preview Lab

Preview with #665BD8

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

Preview Lab → · Contrast checker → · Palette generator →