#665FDF#665FDF

#665FDF is a mid, vivid blue. Relative luminance 0.163; OKLCH L 56.2% C 0.189 H 280.9°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#665FDF
RGB	rgb(102, 95, 223)
HSL	hsl(243, 67%, 62%)
HSV	hsv(243, 57%, 87%)
CMYK	cmyk(54.3%, 57.4%, 0%, 12.5%)
CIE-LAB	lab(47.41, 37.74, -64.71)
CIE-LCH	lch(47.41, 74.91, 300.25°)
OKLab	oklab(56.2% 0.0356 -0.1854)
OKLCH	oklch(56.2% 0.189 280.9)
XYZ	xyz(22.8868, 16.3355, 71.7448)
Luminance	0.1634 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FDF #D8DF5F

analogous

#5F98DF #665FDF #A65FDF

triadic

#665FDF #DF665F #5FDF66

tetradic

#665FDF #DF5F98 #D8DF5F #5FDFA6

square

#665FDF #DF5F98 #D8DF5F #5FDFA6

split-complementary

#665FDF #DFA65F #98DF5F

monochromatic

#2821A3 #352CD5 #665FDF #9792E9 #C8C5F3

Accessibility & contrast

On white

4.92

#665FDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#665FDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FDF

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FDF	#FFFFFF	#000000	##FFFFFF
##665FDF	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E3

Deuteranopia (green-blind)

#006CDC

Tritanopia (blue-blind)

#2D7D96

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #665fdf;
/* rgb */ color: rgb(102, 95, 223);
/* oklch */ color: oklch(56.2% 0.189 280.9);

Tailwind

colors: {
  custom: {
    50: '#9b8cea',
    500: '#665fdf',
    950: '#000000',
  },
}

SCSS

$custom: #665fdf;
$custom-light: #9b8cea;
$custom-dark: #000000;

JSON

{
  "hex": "#665fdf",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 223
  },
  "hsl": {
    "h": 243.281,
    "s": 66.667,
    "l": 62.353
  },
  "oklch": {
    "l": 0.56203,
    "c": 0.18884,
    "h": 280.9
  },
  "luminance": 0.16337
}

Semantic roles & 50–950 ramp

primary

#665FDF

secondary

#E2E4B6

accent

#CF17C5

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665FDF

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

Preview Lab → · Contrast checker → · Palette generator →