#3641B2#3641B2

#3641B2 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.0% C 0.177 H 272.5°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#3641B2
RGB	rgb(54, 65, 178)
HSL	hsl(235, 53%, 45%)
HSV	hsv(235, 70%, 70%)
CMYK	cmyk(69.7%, 63.5%, 0%, 30.2%)
CIE-LAB	lab(33.52, 33.47, -61.37)
CIE-LCH	lch(33.52, 69.91, 298.61°)
OKLab	oklab(44.03% 0.0076 -0.1771)
OKLCH	oklch(44.03% 0.177 272.5)
XYZ	xyz(11.4448, 7.7781, 43.0090)
Luminance	0.0778 (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

#3641B2 #B2A736

analogous

#367FB2 #3641B2 #6936B2

triadic

#3641B2 #B23641 #41B236

tetradic

#3641B2 #B2367F #B2A736 #36B269

square

#3641B2 #B2367F #B2A736 #36B269

split-complementary

#3641B2 #B26936 #7FB236

monochromatic

#1A1F54 #283083 #3641B2 #5963CD #888FDB

Accessibility & contrast

On white

8.22

#3641B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3641B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3641B2

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3641B2	#FFFFFF	#000000	##FFFFFF
##3641B2	1.00	8.22	2.56	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B6

Deuteranopia (green-blind)

#0049B0

Tritanopia (blue-blind)

#005E73

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3641b2;
/* rgb */ color: rgb(54, 65, 178);
/* oklch */ color: oklch(44.0% 0.177 272.5);

Tailwind

colors: {
  custom: {
    50: '#7d75ca',
    500: '#3641b2',
    950: '#000000',
  },
}

SCSS

$custom: #3641b2;
$custom-light: #7d75ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3641b2",
  "rgb": {
    "r": 54,
    "g": 65,
    "b": 178
  },
  "hsl": {
    "h": 234.677,
    "s": 53.448,
    "l": 45.49
  },
  "oklch": {
    "l": 0.44029,
    "c": 0.17731,
    "h": 272.5
  },
  "luminance": 0.07779
}

Semantic roles & 50–950 ramp

primary

#3641B2

secondary

#C5BF7F

accent

#D04BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3641B2

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

Preview Lab → · Contrast checker → · Palette generator →