#665FD3#665FD3

#665FD3 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 55.3% C 0.173 H 281.9°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#665FD3
RGB	rgb(102, 95, 211)
HSL	hsl(244, 57%, 60%)
HSV	hsv(244, 55%, 83%)
CMYK	cmyk(51.7%, 55%, 0%, 17.3%)
CIE-LAB	lab(46.59, 34.03, -59.20)
CIE-LCH	lch(46.59, 68.28, 299.89°)
OKLab	oklab(55.34% 0.0355 -0.1693)
OKLCH	oklch(55.34% 0.173 281.9)
XYZ	xyz(21.3260, 15.7111, 63.5242)
Luminance	0.1571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FD3 #CCD35F

analogous

#5F92D3 #665FD3 #A05FD3

triadic

#665FD3 #D3665F #5FD366

tetradic

#665FD3 #D35F92 #CCD35F #5FD3A0

square

#665FD3 #D35F92 #CCD35F #5FD3A0

split-complementary

#665FD3 #D3A05F #92D35F

monochromatic

#2E2890 #3D35C0 #665FD3 #948FE0 #C2BFED

Accessibility & contrast

On white

5.07

#665FD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#665FD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FD3

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FD3	#FFFFFF	#000000	##FFFFFF
##665FD3	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1472D7

Deuteranopia (green-blind)

#006AD1

Tritanopia (blue-blind)

#397990

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #665fd3;
/* rgb */ color: rgb(102, 95, 211);
/* oklch */ color: oklch(55.3% 0.173 281.9);

Tailwind

colors: {
  custom: {
    50: '#998ce1',
    500: '#665fd3',
    950: '#000000',
  },
}

SCSS

$custom: #665fd3;
$custom-light: #998ce1;
$custom-dark: #000000;

JSON

{
  "hex": "#665fd3",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 211
  },
  "hsl": {
    "h": 243.621,
    "s": 56.863,
    "l": 60
  },
  "oklch": {
    "l": 0.55336,
    "c": 0.17294,
    "h": 281.9
  },
  "luminance": 0.15712
}

Semantic roles & 50–950 ramp

primary

#665FD3

secondary

#DBDDB1

accent

#E048D7

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0F0C15

muted

#7E7D83

Preview Lab

Preview with #665FD3

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

Preview Lab → · Contrast checker → · Palette generator →