#3645BF#3645BF

#3645BF is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.9% C 0.190 H 271.2°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#3645BF
RGB	rgb(54, 69, 191)
HSL	hsl(233, 56%, 48%)
HSV	hsv(233, 72%, 75%)
CMYK	cmyk(71.7%, 63.9%, 0%, 25.1%)
CIE-LAB	lab(35.60, 35.54, -65.64)
CIE-LCH	lch(35.60, 74.64, 298.44°)
OKLab	oklab(45.9% 0.0041 -0.1896)
OKLCH	oklch(45.9% 0.19 271.2)
XYZ	xyz(13.0502, 8.8008, 50.2911)
Luminance	0.0880 (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

#3645BF #BFB036

analogous

#3689BF #3645BF #6C36BF

triadic

#3645BF #BF3645 #45BF36

tetradic

#3645BF #BF3689 #BFB036 #36BF6C

square

#3645BF #BF3689 #BFB036 #36BF6C

split-complementary

#3645BF #BF6C36 #89BF36

monochromatic

#1B2360 #29348F #3645BF #606DD2 #9099E0

Accessibility & contrast

On white

7.61

#3645BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#3645BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3645BF

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3645BF	#FFFFFF	#000000	##FFFFFF
##3645BF	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC3

Deuteranopia (green-blind)

#004DBD

Tritanopia (blue-blind)

#00657B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3645bf;
/* rgb */ color: rgb(54, 69, 191);
/* oklch */ color: oklch(45.9% 0.190 271.2);

Tailwind

colors: {
  custom: {
    50: '#8078d3',
    500: '#3645bf',
    950: '#000000',
  },
}

SCSS

$custom: #3645bf;
$custom-light: #8078d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3645bf",
  "rgb": {
    "r": 54,
    "g": 69,
    "b": 191
  },
  "hsl": {
    "h": 233.431,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.45901,
    "c": 0.18967,
    "h": 271.2
  },
  "luminance": 0.08802
}

Semantic roles & 50–950 ramp

primary

#3645BF

secondary

#CAC387

accent

#CF49DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3645BF

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

Preview Lab → · Contrast checker → · Palette generator →