#3645A9#3645A9

#3645A9 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.0% C 0.160 H 271.7°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#3645A9
RGB	rgb(54, 69, 169)
HSL	hsl(232, 52%, 44%)
HSV	hsv(232, 68%, 66%)
CMYK	cmyk(68%, 59.2%, 0%, 33.7%)
CIE-LAB	lab(33.78, 27.66, -55.58)
CIE-LCH	lch(33.78, 62.08, 296.46°)
OKLab	oklab(44% 0.0046 -0.1601)
OKLCH	oklch(44% 0.16 271.7)
XYZ	xyz(10.8085, 7.9041, 38.4845)
Luminance	0.0790 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3645A9 #A99A36

analogous

#367EA9 #3645A9 #6036A9

triadic

#3645A9 #A93645 #45A936

tetradic

#3645A9 #A9367E #A99A36 #36A960

square

#3645A9 #A9367E #A99A36 #36A960

split-complementary

#3645A9 #A96036 #7EA936

monochromatic

#181F4C #27327B #3645A9 #5463C8 #828DD7

Accessibility & contrast

On white

8.14

#3645A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3645A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3645A9

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3645A9	#FFFFFF	#000000	##FFFFFF
##3645A9	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AC

Deuteranopia (green-blind)

#004AA7

Tritanopia (blue-blind)

#005E70

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3645a9;
/* rgb */ color: rgb(54, 69, 169);
/* oklch */ color: oklch(44.0% 0.160 271.7);

Tailwind

colors: {
  custom: {
    50: '#7b78c3',
    500: '#3645a9',
    950: '#000000',
  },
}

SCSS

$custom: #3645a9;
$custom-light: #7b78c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3645a9",
  "rgb": {
    "r": 54,
    "g": 69,
    "b": 169
  },
  "hsl": {
    "h": 232.174,
    "s": 51.57,
    "l": 43.725
  },
  "oklch": {
    "l": 0.43995,
    "c": 0.16017,
    "h": 271.7
  },
  "luminance": 0.07905
}

Semantic roles & 50–950 ramp

primary

#3645A9

secondary

#C1B77A

accent

#C84DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3645A9

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

Preview Lab → · Contrast checker → · Palette generator →