#665FBC#665FBC

#665FBC is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.8% C 0.141 H 284.0°. Best body text is #FFFFFF at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#665FBC
RGB	rgb(102, 95, 188)
HSL	hsl(245, 41%, 55%)
HSV	hsv(245, 49%, 74%)
CMYK	cmyk(45.7%, 49.5%, 0%, 26.3%)
CIE-LAB	lab(45.14, 27.01, -48.28)
CIE-LCH	lch(45.14, 55.33, 299.22°)
OKLab	oklab(53.78% 0.0342 -0.1372)
OKLCH	oklch(53.78% 0.141 284)
XYZ	xyz(18.6461, 14.6392, 49.4104)
Luminance	0.1464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FBC #B5BC5F

analogous

#5F86BC #665FBC #945FBC

triadic

#665FBC #BC665F #5FBC66

tetradic

#665FBC #BC5F86 #B5BC5F #5FBC94

square

#665FBC #BC5F86 #B5BC5F #5FBC94

split-complementary

#665FBC #BC945F #86BC5F

monochromatic

#342F71 #48419C #665FBC #8F8ACE #B8B5E0

Accessibility & contrast

On white

5.35

#665FBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#665FBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FBC

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FBC	#FFFFFF	#000000	##FFFFFF
##665FBC	1.00	5.35	3.93	5.35
#FFFFFF	5.35	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#376EBF

Deuteranopia (green-blind)

#3368BA

Tritanopia (blue-blind)

#4A7384

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #665fbc;
/* rgb */ color: rgb(102, 95, 188);
/* oklch */ color: oklch(53.8% 0.141 284.0);

Tailwind

colors: {
  custom: {
    50: '#978cd1',
    500: '#665fbc',
    950: '#000000',
  },
}

SCSS

$custom: #665fbc;
$custom-light: #978cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#665fbc",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 188
  },
  "hsl": {
    "h": 244.516,
    "s": 40.969,
    "l": 55.49
  },
  "oklch": {
    "l": 0.5378,
    "c": 0.14136,
    "h": 284
  },
  "luminance": 0.1464
}

Semantic roles & 50–950 ramp

primary

#665FBC

secondary

#CCCFA8

accent

#D157C8

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0C14

muted

#7E7D82

Preview Lab

Preview with #665FBC

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

Preview Lab → · Contrast checker → · Palette generator →