#665EBA#665EBA

#665EBA is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.5% C 0.140 H 284.6°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#665EBA
RGB	rgb(102, 94, 186)
HSL	hsl(245, 40%, 55%)
HSV	hsv(245, 49%, 73%)
CMYK	cmyk(45.2%, 49.5%, 0%, 27.1%)
CIE-LAB	lab(44.77, 27.02, -47.71)
CIE-LCH	lch(44.77, 54.83, 299.52°)
OKLab	oklab(53.46% 0.0352 -0.1355)
OKLCH	oklch(53.46% 0.14 284.6)
XYZ	xyz(18.3425, 14.3746, 48.2529)
Luminance	0.1437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665EBA #B2BA5E

analogous

#5E84BA #665EBA #945EBA

triadic

#665EBA #BA665E #5EBA66

tetradic

#665EBA #BA5E84 #B2BA5E #5EBA94

square

#665EBA #BA5E84 #B2BA5E #5EBA94

split-complementary

#665EBA #BA945E #84BA5E

monochromatic

#352F6E #494299 #665EBA #8F89CC #B7B4DF

Accessibility & contrast

On white

5.42

#665EBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#665EBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665EBA

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665EBA	#FFFFFF	#000000	##FFFFFF
##665EBA	1.00	5.42	3.87	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#366DBD

Deuteranopia (green-blind)

#3367B8

Tritanopia (blue-blind)

#4B7183

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #665eba;
/* rgb */ color: rgb(102, 94, 186);
/* oklch */ color: oklch(53.5% 0.140 284.6);

Tailwind

colors: {
  custom: {
    50: '#968bcf',
    500: '#665eba',
    950: '#000000',
  },
}

SCSS

$custom: #665eba;
$custom-light: #968bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#665eba",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 186
  },
  "hsl": {
    "h": 245.217,
    "s": 40,
    "l": 54.902
  },
  "oklch": {
    "l": 0.53462,
    "c": 0.13999,
    "h": 284.6
  },
  "luminance": 0.14375
}

Semantic roles & 50–950 ramp

primary

#665EBA

secondary

#CACDA7

accent

#D058C5

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0C14

muted

#7E7D82

Preview Lab

Preview with #665EBA

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

Preview Lab → · Contrast checker → · Palette generator →