#3645BA#3645BA

#3645BA is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.5% C 0.183 H 271.3°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#3645BA
RGB	rgb(54, 69, 186)
HSL	hsl(233, 55%, 47%)
HSV	hsv(233, 71%, 73%)
CMYK	cmyk(71%, 62.9%, 0%, 27.1%)
CIE-LAB	lab(35.17, 33.77, -63.40)
CIE-LCH	lch(35.17, 71.83, 298.04°)
OKLab	oklab(45.46% 0.0043 -0.1831)
OKLCH	oklch(45.46% 0.183 271.3)
XYZ	xyz(12.5094, 8.5844, 47.4426)
Luminance	0.0859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3645BA #BAAB36

analogous

#3687BA #3645BA #6936BA

triadic

#3645BA #BA3645 #45BA36

tetradic

#3645BA #BA3687 #BAAB36 #36BA69

square

#3645BA #BA3687 #BAAB36 #36BA69

split-complementary

#3645BA #BA6936 #87BA36

monochromatic

#1A225B #28338B #3645BA #5D6AD0 #8D96DE

Accessibility & contrast

On white

7.73

#3645BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3645BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3645BA

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3645BA	#FFFFFF	#000000	##FFFFFF
##3645BA	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BE

Deuteranopia (green-blind)

#004DB8

Tritanopia (blue-blind)

#006379

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3645ba;
/* rgb */ color: rgb(54, 69, 186);
/* oklch */ color: oklch(45.5% 0.183 271.3);

Tailwind

colors: {
  custom: {
    50: '#7f78d0',
    500: '#3645ba',
    950: '#000000',
  },
}

SCSS

$custom: #3645ba;
$custom-light: #7f78d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3645ba",
  "rgb": {
    "r": 54,
    "g": 69,
    "b": 186
  },
  "hsl": {
    "h": 233.182,
    "s": 55,
    "l": 47.059
  },
  "oklch": {
    "l": 0.45456,
    "c": 0.18311,
    "h": 271.3
  },
  "luminance": 0.08586
}

Semantic roles & 50–950 ramp

primary

#3645BA

secondary

#C8C084

accent

#CD49DE

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3645BA

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

Preview Lab → · Contrast checker → · Palette generator →