#665CBA#665CBA

#665CBA is a mid, vivid blue. Relative luminance 0.140; OKLCH L 53.1% C 0.143 H 285.3°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#665CBA
RGB	rgb(102, 92, 186)
HSL	hsl(246, 41%, 55%)
HSV	hsv(246, 51%, 73%)
CMYK	cmyk(45.2%, 50.5%, 0%, 27.1%)
CIE-LAB	lab(44.27, 28.25, -48.51)
CIE-LCH	lch(44.27, 56.14, 300.21°)
OKLab	oklab(53.09% 0.0377 -0.1378)
OKLCH	oklch(53.09% 0.143 285.3)
XYZ	xyz(18.1670, 14.0235, 48.1944)
Luminance	0.1402 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CBA #B0BA5C

analogous

#5C81BA #665CBA #955CBA

triadic

#665CBA #BA665C #5CBA66

tetradic

#665CBA #BA5C81 #B0BA5C #5CBA95

square

#665CBA #BA5C81 #B0BA5C #5CBA95

split-complementary

#665CBA #BA955C #81BA5C

monochromatic

#352E6D #4A4098 #665CBA #8E87CC #B7B2DE

Accessibility & contrast

On white

5.52

#665CBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#665CBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CBA

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CBA	#FFFFFF	#000000	##FFFFFF
##665CBA	1.00	5.52	3.80	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#326BBD

Deuteranopia (green-blind)

#2F66B8

Tritanopia (blue-blind)

#4B7082

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665cba;
/* rgb */ color: rgb(102, 92, 186);
/* oklch */ color: oklch(53.1% 0.143 285.3);

Tailwind

colors: {
  custom: {
    50: '#978acf',
    500: '#665cba',
    950: '#000000',
  },
}

SCSS

$custom: #665cba;
$custom-light: #978acf;
$custom-dark: #000000;

JSON

{
  "hex": "#665cba",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 186
  },
  "hsl": {
    "h": 246.383,
    "s": 40.517,
    "l": 54.51
  },
  "oklch": {
    "l": 0.53088,
    "c": 0.1429,
    "h": 285.3
  },
  "luminance": 0.14024
}

Semantic roles & 50–950 ramp

primary

#665CBA

secondary

#C9CDA5

accent

#D057C4

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0B14

muted

#7E7C82

Preview Lab

Preview with #665CBA

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

Preview Lab → · Contrast checker → · Palette generator →