#3641BC#3641BC

#3641BC is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.9% C 0.190 H 272.1°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#3641BC
RGB	rgb(54, 65, 188)
HSL	hsl(235, 55%, 47%)
HSV	hsv(235, 71%, 74%)
CMYK	cmyk(71.3%, 65.4%, 0%, 26.3%)
CIE-LAB	lab(34.38, 37.00, -65.86)
CIE-LCH	lch(34.38, 75.54, 299.32°)
OKLab	oklab(44.93% 0.0069 -0.1903)
OKLCH	oklch(44.93% 0.19 272.1)
XYZ	xyz(12.4857, 8.1945, 48.4909)
Luminance	0.0820 (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

#3641BC #BCB136

analogous

#3684BC #3641BC #6E36BC

triadic

#3641BC #BC3641 #41BC36

tetradic

#3641BC #BC3684 #BCB136 #36BC6E

square

#3641BC #BC3684 #BCB136 #36BC6E

split-complementary

#3641BC #BC6E36 #84BC36

monochromatic

#1B205D #28318C #3641BC #5E68D1 #8E95DF

Accessibility & contrast

On white

7.96

#3641BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3641BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3641BC

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3641BC	#FFFFFF	#000000	##FFFFFF
##3641BC	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C0

Deuteranopia (green-blind)

#004BBA

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3641bc;
/* rgb */ color: rgb(54, 65, 188);
/* oklch */ color: oklch(44.9% 0.190 272.1);

Tailwind

colors: {
  custom: {
    50: '#8076d1',
    500: '#3641bc',
    950: '#000000',
  },
}

SCSS

$custom: #3641bc;
$custom-light: #8076d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3641bc",
  "rgb": {
    "r": 54,
    "g": 65,
    "b": 188
  },
  "hsl": {
    "h": 235.075,
    "s": 55.372,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44932,
    "c": 0.19044,
    "h": 272.1
  },
  "luminance": 0.08196
}

Semantic roles & 50–950 ramp

primary

#3641BC

secondary

#C9C385

accent

#D249DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3641BC

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

Preview Lab → · Contrast checker → · Palette generator →