#3645BD#3645BD

#3645BD is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.7% C 0.187 H 271.3°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#3645BD
RGB	rgb(54, 69, 189)
HSL	hsl(233, 56%, 48%)
HSV	hsv(233, 71%, 74%)
CMYK	cmyk(71.4%, 63.5%, 0%, 25.9%)
CIE-LAB	lab(35.43, 34.83, -64.74)
CIE-LCH	lch(35.43, 73.52, 298.28°)
OKLab	oklab(45.72% 0.0042 -0.187)
OKLCH	oklch(45.72% 0.187 271.3)
XYZ	xyz(12.8316, 8.7133, 49.1398)
Luminance	0.0872 (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

#3645BD #BDAE36

analogous

#3689BD #3645BD #6A36BD

triadic

#3645BD #BD3645 #45BD36

tetradic

#3645BD #BD3689 #BDAE36 #36BD6A

square

#3645BD #BD3689 #BDAE36 #36BD6A

split-complementary

#3645BD #BD6A36 #89BD36

monochromatic

#1B225E #28348D #3645BD #5F6CD1 #8F97DF

Accessibility & contrast

On white

7.66

#3645BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3645BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3645BD

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3645BD	#FFFFFF	#000000	##FFFFFF
##3645BD	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC1

Deuteranopia (green-blind)

#004DBB

Tritanopia (blue-blind)

#00647A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3645bd;
/* rgb */ color: rgb(54, 69, 189);
/* oklch */ color: oklch(45.7% 0.187 271.3);

Tailwind

colors: {
  custom: {
    50: '#8078d2',
    500: '#3645bd',
    950: '#000000',
  },
}

SCSS

$custom: #3645bd;
$custom-light: #8078d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3645bd",
  "rgb": {
    "r": 54,
    "g": 69,
    "b": 189
  },
  "hsl": {
    "h": 233.333,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.45722,
    "c": 0.18706,
    "h": 271.3
  },
  "luminance": 0.08715
}

Semantic roles & 50–950 ramp

primary

#3645BD

secondary

#C9C285

accent

#CE49DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3645BD

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

Preview Lab → · Contrast checker → · Palette generator →