#665DE3#665DE3

#665DE3 is a mid, vivid blue. Relative luminance 0.162; OKLCH L 56.2% C 0.197 H 281.0°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#665DE3
RGB	rgb(102, 93, 227)
HSL	hsl(244, 71%, 63%)
HSV	hsv(244, 59%, 89%)
CMYK	cmyk(55.1%, 59%, 0%, 11%)
CIE-LAB	lab(47.23, 40.17, -67.26)
CIE-LCH	lch(47.23, 78.34, 300.84°)
OKLab	oklab(56.16% 0.0375 -0.193)
OKLCH	oklch(56.16% 0.197 281)
XYZ	xyz(23.2547, 16.1981, 74.5593)
Luminance	0.1620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DE3 #DAE35D

analogous

#5D97E3 #665DE3 #A95DE3

triadic

#665DE3 #E3665D #5DE366

tetradic

#665DE3 #E35D97 #DAE35D #5DE3A9

square

#665DE3 #E35D97 #DAE35D #5DE3A9

split-complementary

#665DE3 #E3A95D #97E35D

monochromatic

#261DA8 #3529DA #665DE3 #9791EC #C9C5F5

Accessibility & contrast

On white

4.95

#665DE3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#665DE3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DE3

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DE3	#FFFFFF	#000000	##FFFFFF
##665DE3	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E7

Deuteranopia (green-blind)

#006BE0

Tritanopia (blue-blind)

#287D97

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #665de3;
/* rgb */ color: rgb(102, 93, 227);
/* oklch */ color: oklch(56.2% 0.197 281.0);

Tailwind

colors: {
  custom: {
    50: '#9c8bed',
    500: '#665de3',
    950: '#000000',
  },
}

SCSS

$custom: #665de3;
$custom-light: #9c8bed;
$custom-dark: #000000;

JSON

{
  "hex": "#665de3",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 227
  },
  "hsl": {
    "h": 244.03,
    "s": 70.526,
    "l": 62.745
  },
  "oklch": {
    "l": 0.56161,
    "c": 0.1966,
    "h": 281
  },
  "luminance": 0.162
}

Semantic roles & 50–950 ramp

primary

#665DE3

secondary

#E3E6B6

accent

#D313C6

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665DE3

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

Preview Lab → · Contrast checker → · Palette generator →