#665DE4#665DE4

#665DE4 is a mid, vivid blue. Relative luminance 0.163; OKLCH L 56.2% C 0.198 H 280.9°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#665DE4
RGB	rgb(102, 93, 228)
HSL	hsl(244, 71%, 63%)
HSV	hsv(244, 59%, 89%)
CMYK	cmyk(55.3%, 59.2%, 0%, 10.6%)
CIE-LAB	lab(47.31, 40.48, -67.71)
CIE-LCH	lch(47.31, 78.88, 300.87°)
OKLab	oklab(56.24% 0.0375 -0.1943)
OKLCH	oklch(56.24% 0.198 280.9)
XYZ	xyz(23.3931, 16.2534, 75.2883)
Luminance	0.1626 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DE4 #DBE45D

analogous

#5D97E4 #665DE4 #A95DE4

triadic

#665DE4 #E4665D #5DE466

tetradic

#665DE4 #E45D97 #DBE45D #5DE4A9

square

#665DE4 #E45D97 #DBE45D #5DE4A9

split-complementary

#665DE4 #E4A95D #97E45D

monochromatic

#261CAA #3429DB #665DE4 #9891ED #C9C6F5

Accessibility & contrast

On white

4.94

#665DE4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#665DE4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DE4

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DE4	#FFFFFF	#000000	##FFFFFF
##665DE4	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E8

Deuteranopia (green-blind)

#006BE1

Tritanopia (blue-blind)

#267D98

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #665de4;
/* rgb */ color: rgb(102, 93, 228);
/* oklch */ color: oklch(56.2% 0.198 280.9);

Tailwind

colors: {
  custom: {
    50: '#9c8bed',
    500: '#665de4',
    950: '#000000',
  },
}

SCSS

$custom: #665de4;
$custom-light: #9c8bed;
$custom-dark: #000000;

JSON

{
  "hex": "#665de4",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 228
  },
  "hsl": {
    "h": 244,
    "s": 71.429,
    "l": 62.941
  },
  "oklch": {
    "l": 0.56237,
    "c": 0.19789,
    "h": 280.9
  },
  "luminance": 0.16255
}

Semantic roles & 50–950 ramp

primary

#665DE4

secondary

#E3E7B6

accent

#D312C7

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665DE4

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

Preview Lab → · Contrast checker → · Palette generator →