#665FC3#665FC3

#665FC3 is a mid, vivid blue. Relative luminance 0.149; OKLCH L 54.2% C 0.151 H 283.3°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#665FC3
RGB	rgb(102, 95, 195)
HSL	hsl(244, 45%, 57%)
HSV	hsv(244, 51%, 76%)
CMYK	cmyk(47.7%, 51.3%, 0%, 23.5%)
CIE-LAB	lab(45.56, 29.13, -51.66)
CIE-LCH	lch(45.56, 59.30, 299.42°)
OKLab	oklab(54.24% 0.0348 -0.1471)
OKLCH	oklch(54.24% 0.151 283.3)
XYZ	xyz(19.4191, 14.9484, 53.4813)
Luminance	0.1495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FC3 #BCC35F

analogous

#5F8AC3 #665FC3 #985FC3

triadic

#665FC3 #C3665F #5FC366

tetradic

#665FC3 #C35F8A #BCC35F #5FC398

square

#665FC3 #C35F8A #BCC35F #5FC398

split-complementary

#665FC3 #C3985F #8AC35F

monochromatic

#332E7A #463EA6 #665FC3 #918CD4 #BBB8E4

Accessibility & contrast

On white

5.26

#665FC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#665FC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FC3

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FC3	#FFFFFF	#000000	##FFFFFF
##665FC3	1.00	5.26	3.99	5.26
#FFFFFF	5.26	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F6FC7

Deuteranopia (green-blind)

#2A69C1

Tritanopia (blue-blind)

#467588

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #665fc3;
/* rgb */ color: rgb(102, 95, 195);
/* oklch */ color: oklch(54.2% 0.151 283.3);

Tailwind

colors: {
  custom: {
    50: '#978cd6',
    500: '#665fc3',
    950: '#000000',
  },
}

SCSS

$custom: #665fc3;
$custom-light: #978cd6;
$custom-dark: #000000;

JSON

{
  "hex": "#665fc3",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 195
  },
  "hsl": {
    "h": 244.2,
    "s": 45.455,
    "l": 56.863
  },
  "oklch": {
    "l": 0.54238,
    "c": 0.15112,
    "h": 283.3
  },
  "luminance": 0.14949
}

Semantic roles & 50–950 ramp

primary

#665FC3

secondary

#D0D3AB

accent

#D553CC

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0C14

muted

#7E7D83

Preview Lab

Preview with #665FC3

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

Preview Lab → · Contrast checker → · Palette generator →