#665DDB#665DDB

#665DDB is a mid, vivid blue. Relative luminance 0.158; OKLCH L 55.6% C 0.186 H 281.7°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#665DDB
RGB	rgb(102, 93, 219)
HSL	hsl(244, 64%, 61%)
HSV	hsv(244, 58%, 86%)
CMYK	cmyk(53.4%, 57.5%, 0%, 14.1%)
CIE-LAB	lab(46.67, 37.70, -63.64)
CIE-LCH	lch(46.67, 73.97, 300.64°)
OKLab	oklab(55.56% 0.0377 -0.1823)
OKLCH	oklch(55.56% 0.186 281.7)
XYZ	xyz(22.1761, 15.7666, 68.8788)
Luminance	0.1577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DDB #D2DB5D

analogous

#5D93DB #665DDB #A55DDB

triadic

#665DDB #DB665D #5DDB66

tetradic

#665DDB #DB5D93 #D2DB5D #5DDBA5

square

#665DDB #DB5D93 #D2DB5D #5DDBA5

split-complementary

#665DDB #DBA55D #93DB5D

monochromatic

#2B229B #392ECD #665DDB #958FE6 #C5C1F1

Accessibility & contrast

On white

5.06

#665DDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#665DDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DDB

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DDB	#FFFFFF	#000000	##FFFFFF
##665DDB	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073DF

Deuteranopia (green-blind)

#006AD8

Tritanopia (blue-blind)

#327A93

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #665ddb;
/* rgb */ color: rgb(102, 93, 219);
/* oklch */ color: oklch(55.6% 0.186 281.7);

Tailwind

colors: {
  custom: {
    50: '#9b8be7',
    500: '#665ddb',
    950: '#000000',
  },
}

SCSS

$custom: #665ddb;
$custom-light: #9b8be7;
$custom-dark: #000000;

JSON

{
  "hex": "#665ddb",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 219
  },
  "hsl": {
    "h": 244.286,
    "s": 63.636,
    "l": 61.176
  },
  "oklch": {
    "l": 0.55564,
    "c": 0.18619,
    "h": 281.7
  },
  "luminance": 0.15768
}

Semantic roles & 50–950 ramp

primary

#665DDB

secondary

#DEE2B2

accent

#CB1ABF

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665DDB

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

Preview Lab → · Contrast checker → · Palette generator →