#3645AB#3645AB

#3645AB is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.2% C 0.163 H 271.6°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#3645AB
RGB	rgb(54, 69, 171)
HSL	hsl(232, 52%, 44%)
HSV	hsv(232, 68%, 67%)
CMYK	cmyk(68.4%, 59.6%, 0%, 32.9%)
CIE-LAB	lab(33.94, 28.38, -56.51)
CIE-LCH	lch(33.94, 63.24, 296.67°)
OKLab	oklab(44.16% 0.0046 -0.1628)
OKLCH	oklch(44.16% 0.163 271.6)
XYZ	xyz(10.9976, 7.9798, 39.4809)
Luminance	0.0798 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3645AB #AB9C36

analogous

#3680AB #3645AB #6236AB

triadic

#3645AB #AB3645 #45AB36

tetradic

#3645AB #AB3680 #AB9C36 #36AB62

square

#3645AB #AB3680 #AB9C36 #36AB62

split-complementary

#3645AB #AB6236 #80AB36

monochromatic

#191F4E #27327C #3645AB #5564C9 #838ED8

Accessibility & contrast

On white

8.09

#3645AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#3645AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3645AB

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3645AB	#FFFFFF	#000000	##FFFFFF
##3645AB	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AE

Deuteranopia (green-blind)

#004BA9

Tritanopia (blue-blind)

#005E71

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3645ab;
/* rgb */ color: rgb(54, 69, 171);
/* oklch */ color: oklch(44.2% 0.163 271.6);

Tailwind

colors: {
  custom: {
    50: '#7c78c5',
    500: '#3645ab',
    950: '#000000',
  },
}

SCSS

$custom: #3645ab;
$custom-light: #7c78c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3645ab",
  "rgb": {
    "r": 54,
    "g": 69,
    "b": 171
  },
  "hsl": {
    "h": 232.308,
    "s": 52,
    "l": 44.118
  },
  "oklch": {
    "l": 0.44163,
    "c": 0.16292,
    "h": 271.6
  },
  "luminance": 0.07981
}

Semantic roles & 50–950 ramp

primary

#3645AB

secondary

#C2B97B

accent

#C94CDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3645AB

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

Preview Lab → · Contrast checker → · Palette generator →