#665CB2#665CB2

#665CB2 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.6% C 0.132 H 286.3°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#665CB2
RGB	rgb(102, 92, 178)
HSL	hsl(247, 36%, 53%)
HSV	hsv(247, 48%, 70%)
CMYK	cmyk(42.7%, 48.3%, 0%, 30.2%)
CIE-LAB	lab(43.79, 25.87, -44.60)
CIE-LCH	lch(43.79, 51.56, 300.11°)
OKLab	oklab(52.58% 0.0369 -0.1264)
OKLCH	oklch(52.58% 0.132 286.3)
XYZ	xyz(17.3402, 13.6928, 43.8402)
Luminance	0.1369 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CB2 #A8B25C

analogous

#5C7DB2 #665CB2 #915CB2

triadic

#665CB2 #B2665C #5CB266

tetradic

#665CB2 #B25C7D #A8B25C #5CB291

square

#665CB2 #B25C7D #A8B25C #5CB291

split-complementary

#665CB2 #B2915C #7DB25C

monochromatic

#362F64 #4C438E #665CB2 #8D86C6 #B4AFD9

Accessibility & contrast

On white

5.62

#665CB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#665CB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CB2

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CB2	#FFFFFF	#000000	##FFFFFF
##665CB2	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A6AB5

Deuteranopia (green-blind)

#3865B0

Tritanopia (blue-blind)

#4F6E7E

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #665cb2;
/* rgb */ color: rgb(102, 92, 178);
/* oklch */ color: oklch(52.6% 0.132 286.3);

Tailwind

colors: {
  custom: {
    50: '#968ac9',
    500: '#665cb2',
    950: '#000000',
  },
}

SCSS

$custom: #665cb2;
$custom-light: #968ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#665cb2",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 178
  },
  "hsl": {
    "h": 246.977,
    "s": 35.833,
    "l": 52.941
  },
  "oklch": {
    "l": 0.52575,
    "c": 0.13163,
    "h": 286.3
  },
  "luminance": 0.13693
}

Semantic roles & 50–950 ramp

primary

#665CB2

secondary

#C3C7A2

accent

#CC5CBF

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0E0B13

muted

#7E7C82

Preview Lab

Preview with #665CB2

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

Preview Lab → · Contrast checker → · Palette generator →