#665AC0#665AC0

#665AC0 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 53.1% C 0.154 H 285.2°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#665AC0
RGB	rgb(102, 90, 192)
HSL	hsl(247, 45%, 55%)
HSV	hsv(247, 53%, 75%)
CMYK	cmyk(46.9%, 53.1%, 0%, 24.7%)
CIE-LAB	lab(44.15, 31.27, -52.19)
CIE-LCH	lch(44.15, 60.84, 300.93°)
OKLab	oklab(53.12% 0.0405 -0.1487)
OKLCH	oklch(53.12% 0.154 285.2)
XYZ	xyz(18.6473, 13.9420, 51.5675)
Luminance	0.1394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AC0 #B4C05A

analogous

#5A81C0 #665AC0 #995AC0

triadic

#665AC0 #C0665A #5AC066

tetradic

#665AC0 #C05A81 #B4C05A #5AC099

square

#665AC0 #C05A81 #B4C05A #5AC099

split-complementary

#665AC0 #C0995A #81C05A

monochromatic

#342C73 #493DA0 #665AC0 #8F86D1 #B8B3E2

Accessibility & contrast

On white

5.54

#665AC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#665AC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AC0

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AC0	#FFFFFF	#000000	##FFFFFF
##665AC0	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#276BC4

Deuteranopia (green-blind)

#2365BE

Tritanopia (blue-blind)

#487084

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #665ac0;
/* rgb */ color: rgb(102, 90, 192);
/* oklch */ color: oklch(53.1% 0.154 285.2);

Tailwind

colors: {
  custom: {
    50: '#9789d4',
    500: '#665ac0',
    950: '#000000',
  },
}

SCSS

$custom: #665ac0;
$custom-light: #9789d4;
$custom-dark: #000000;

JSON

{
  "hex": "#665ac0",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 192
  },
  "hsl": {
    "h": 247.059,
    "s": 44.737,
    "l": 55.294
  },
  "oklch": {
    "l": 0.53121,
    "c": 0.15408,
    "h": 285.2
  },
  "luminance": 0.13943
}

Semantic roles & 50–950 ramp

primary

#665AC0

secondary

#CBD0A6

accent

#D453C5

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #665AC0

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

Preview Lab → · Contrast checker → · Palette generator →