#665DAB#665DAB

#665DAB is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.3% C 0.120 H 286.8°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#665DAB
RGB	rgb(102, 93, 171)
HSL	hsl(247, 32%, 52%)
HSV	hsv(247, 46%, 67%)
CMYK	cmyk(40.4%, 45.6%, 0%, 32.9%)
CIE-LAB	lab(43.64, 23.20, -40.72)
CIE-LCH	lch(43.64, 46.86, 299.67°)
OKLab	oklab(52.34% 0.0346 -0.115)
OKLCH	oklch(52.34% 0.12 286.8)
XYZ	xyz(16.7425, 13.5932, 40.2618)
Luminance	0.1359 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DAB #A2AB5D

analogous

#5D7BAB #665DAB #8D5DAB

triadic

#665DAB #AB665D #5DAB66

tetradic

#665DAB #AB5D7B #A2AB5D #5DAB8D

square

#665DAB #AB5D7B #A2AB5D #5DAB8D

split-complementary

#665DAB #AB8D5D #7BAB5D

monochromatic

#36305D #4D4586 #665DAB #8C85C0 #B2AED5

Accessibility & contrast

On white

5.65

#665DAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#665DAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DAB

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DAB	#FFFFFF	#000000	##FFFFFF
##665DAB	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4069AE

Deuteranopia (green-blind)

#3F65A9

Tritanopia (blue-blind)

#536D7C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #665dab;
/* rgb */ color: rgb(102, 93, 171);
/* oklch */ color: oklch(52.3% 0.120 286.8);

Tailwind

colors: {
  custom: {
    50: '#958bc4',
    500: '#665dab',
    950: '#000000',
  },
}

SCSS

$custom: #665dab;
$custom-light: #958bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#665dab",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 171
  },
  "hsl": {
    "h": 246.923,
    "s": 31.707,
    "l": 51.765
  },
  "oklch": {
    "l": 0.52336,
    "c": 0.1201,
    "h": 286.8
  },
  "luminance": 0.13594
}

Semantic roles & 50–950 ramp

primary

#665DAB

secondary

#BFC3A1

accent

#C860BC

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0C13

muted

#7E7D82

Preview Lab

Preview with #665DAB

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

Preview Lab → · Contrast checker → · Palette generator →