#3642B8#3642B8

#3642B8 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.7% C 0.184 H 272.0°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).

Color values

HEX	#3642B8
RGB	rgb(54, 66, 184)
HSL	hsl(234, 55%, 47%)
HSV	hsv(234, 71%, 72%)
CMYK	cmyk(70.7%, 64.1%, 0%, 27.8%)
CIE-LAB	lab(34.27, 34.96, -63.69)
CIE-LCH	lch(34.27, 72.65, 298.76°)
OKLab	oklab(44.74% 0.0065 -0.1839)
OKLCH	oklch(44.74% 0.184 272)
XYZ	xyz(12.1183, 8.1402, 46.2707)
Luminance	0.0814 (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

#3642B8 #B8AC36

analogous

#3683B8 #3642B8 #6B36B8

triadic

#3642B8 #B83642 #42B836

tetradic

#3642B8 #B83683 #B8AC36 #36B86B

square

#3642B8 #B83683 #B8AC36 #36B86B

split-complementary

#3642B8 #B86B36 #83B836

monochromatic

#1A2059 #283189 #3642B8 #5C67CF #8B93DD

Accessibility & contrast

On white

7.99

#3642B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3642B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3642B8

7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3642B8	#FFFFFF	#000000	##FFFFFF
##3642B8	1.00	7.99	2.63	7.99
#FFFFFF	7.99	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BC

Deuteranopia (green-blind)

#004BB6

Tritanopia (blue-blind)

#006177

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3642b8;
/* rgb */ color: rgb(54, 66, 184);
/* oklch */ color: oklch(44.7% 0.184 272.0);

Tailwind

colors: {
  custom: {
    50: '#7f76ce',
    500: '#3642b8',
    950: '#000000',
  },
}

SCSS

$custom: #3642b8;
$custom-light: #7f76ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3642b8",
  "rgb": {
    "r": 54,
    "g": 66,
    "b": 184
  },
  "hsl": {
    "h": 234.462,
    "s": 54.622,
    "l": 46.667
  },
  "oklch": {
    "l": 0.44743,
    "c": 0.18405,
    "h": 272
  },
  "luminance": 0.08141
}

Semantic roles & 50–950 ramp

primary

#3642B8

secondary

#C7C182

accent

#D04ADE

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #3642B8

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

Preview Lab → · Contrast checker → · Palette generator →