#665FDA#665FDA

#665FDA is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.8% C 0.182 H 281.3°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#665FDA
RGB	rgb(102, 95, 218)
HSL	hsl(243, 62%, 61%)
HSV	hsv(243, 56%, 85%)
CMYK	cmyk(53.2%, 56.4%, 0%, 14.5%)
CIE-LAB	lab(47.07, 36.19, -62.43)
CIE-LCH	lch(47.07, 72.16, 300.10°)
OKLab	oklab(55.84% 0.0357 -0.1787)
OKLCH	oklch(55.84% 0.182 281.3)
XYZ	xyz(22.2227, 16.0698, 68.2469)
Luminance	0.1607 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FDA #D3DA5F

analogous

#5F96DA #665FDA #A45FDA

triadic

#665FDA #DA665F #5FDA66

tetradic

#665FDA #DA5F96 #D3DA5F #5FDAA4

square

#665FDA #DA5F96 #D3DA5F #5FDAA4

split-complementary

#665FDA #DAA45F #96DA5F

monochromatic

#2B249B #382FCD #665FDA #9691E5 #C5C2F1

Accessibility & contrast

On white

4.98

#665FDA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.21

#665FDA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FDA

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FDA	#FFFFFF	#000000	##FFFFFF
##665FDA	1.00	4.98	4.21	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.21	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074DE

Deuteranopia (green-blind)

#006BD7

Tritanopia (blue-blind)

#337B93

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #665fda;
/* rgb */ color: rgb(102, 95, 218);
/* oklch */ color: oklch(55.8% 0.182 281.3);

Tailwind

colors: {
  custom: {
    50: '#9a8ce6',
    500: '#665fda',
    950: '#000000',
  },
}

SCSS

$custom: #665fda;
$custom-light: #9a8ce6;
$custom-dark: #000000;

JSON

{
  "hex": "#665fda",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 218
  },
  "hsl": {
    "h": 243.415,
    "s": 62.437,
    "l": 61.373
  },
  "oklch": {
    "l": 0.55838,
    "c": 0.18227,
    "h": 281.3
  },
  "luminance": 0.16071
}

Semantic roles & 50–950 ramp

primary

#665FDA

secondary

#DFE1B3

accent

#CA1BC0

background

#FAF8FE

surface

#F3F0FC

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665FDA

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

Preview Lab → · Contrast checker → · Palette generator →