#665CD0#665CD0

#665CD0 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.6% C 0.173 H 282.9°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#665CD0
RGB	rgb(102, 92, 208)
HSL	hsl(245, 55%, 59%)
HSV	hsv(245, 56%, 82%)
CMYK	cmyk(51%, 55.8%, 0%, 18.4%)
CIE-LAB	lab(45.68, 34.92, -58.96)
CIE-LCH	lch(45.68, 68.52, 300.63°)
OKLab	oklab(54.59% 0.0387 -0.1686)
OKLCH	oklch(54.59% 0.173 282.9)
XYZ	xyz(20.6884, 15.0320, 61.4736)
Luminance	0.1503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CD0 #C6D05C

analogous

#5C8CD0 #665CD0 #A05CD0

triadic

#665CD0 #D0665C #5CD066

tetradic

#665CD0 #D05C8C #C6D05C #5CD0A0

square

#665CD0 #D05C8C #C6D05C #5CD0A0

split-complementary

#665CD0 #D0A05C #8CD05C

monochromatic

#30288A #4135B9 #665CD0 #938CDE #BFBBEB

Accessibility & contrast

On white

5.24

#665CD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#665CD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CD0

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CD0	#FFFFFF	#000000	##FFFFFF
##665CD0	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C70D4

Deuteranopia (green-blind)

#0068CE

Tritanopia (blue-blind)

#3C768D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #665cd0;
/* rgb */ color: rgb(102, 92, 208);
/* oklch */ color: oklch(54.6% 0.173 282.9);

Tailwind

colors: {
  custom: {
    50: '#998adf',
    500: '#665cd0',
    950: '#000000',
  },
}

SCSS

$custom: #665cd0;
$custom-light: #998adf;
$custom-dark: #000000;

JSON

{
  "hex": "#665cd0",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 208
  },
  "hsl": {
    "h": 245.172,
    "s": 55.238,
    "l": 58.824
  },
  "oklch": {
    "l": 0.54593,
    "c": 0.17295,
    "h": 282.9
  },
  "luminance": 0.15033
}

Semantic roles & 50–950 ramp

primary

#665CD0

secondary

#D7DBAD

accent

#DF49D2

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0F0C15

muted

#7E7D83

Preview Lab

Preview with #665CD0

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

Preview Lab → · Contrast checker → · Palette generator →