#665FDB#665FDB

#665FDB is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.9% C 0.184 H 281.2°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#665FDB
RGB	rgb(102, 95, 219)
HSL	hsl(243, 63%, 62%)
HSV	hsv(243, 57%, 86%)
CMYK	cmyk(53.4%, 56.6%, 0%, 14.1%)
CIE-LAB	lab(47.13, 36.50, -62.88)
CIE-LCH	lch(47.13, 72.71, 300.13°)
OKLab	oklab(55.91% 0.0357 -0.1801)
OKLCH	oklch(55.91% 0.184 281.2)
XYZ	xyz(22.3539, 16.1223, 68.9381)
Luminance	0.1612 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FDB #D4DB5F

analogous

#5F96DB #665FDB #A45FDB

triadic

#665FDB #DB665F #5FDB66

tetradic

#665FDB #DB5F96 #D4DB5F #5FDBA4

square

#665FDB #DB5F96 #D4DB5F #5FDBA4

split-complementary

#665FDB #DBA45F #96DB5F

monochromatic

#2A239C #372ECE #665FDB #9691E6 #C6C3F1

Accessibility & contrast

On white

4.97

#665FDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#665FDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FDB

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FDB	#FFFFFF	#000000	##FFFFFF
##665FDB	1.00	4.97	4.22	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074DF

Deuteranopia (green-blind)

#006BD8

Tritanopia (blue-blind)

#327C94

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #665fdb;
/* rgb */ color: rgb(102, 95, 219);
/* oklch */ color: oklch(55.9% 0.184 281.2);

Tailwind

colors: {
  custom: {
    50: '#9b8ce7',
    500: '#665fdb',
    950: '#000000',
  },
}

SCSS

$custom: #665fdb;
$custom-light: #9b8ce7;
$custom-dark: #000000;

JSON

{
  "hex": "#665fdb",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 219
  },
  "hsl": {
    "h": 243.387,
    "s": 63.265,
    "l": 61.569
  },
  "oklch": {
    "l": 0.5591,
    "c": 0.18358,
    "h": 281.2
  },
  "luminance": 0.16124
}

Semantic roles & 50–950 ramp

primary

#665FDB

secondary

#DFE2B4

accent

#CB1AC1

background

#FAF8FE

surface

#F3F0FC

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665FDB

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

Preview Lab → · Contrast checker → · Palette generator →