#3645A3#3645A3

#3645A3 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.5% C 0.152 H 271.7°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#3645A3
RGB	rgb(54, 69, 163)
HSL	hsl(232, 50%, 43%)
HSV	hsv(232, 67%, 64%)
CMYK	cmyk(66.9%, 57.7%, 0%, 36.1%)
CIE-LAB	lab(33.32, 25.49, -52.74)
CIE-LCH	lch(33.32, 58.57, 295.80°)
OKLab	oklab(43.5% 0.0045 -0.1517)
OKLCH	oklch(43.5% 0.152 271.7)
XYZ	xyz(10.2581, 7.6839, 35.5858)
Luminance	0.0769 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3645A3 #A39436

analogous

#367CA3 #3645A3 #5D36A3

triadic

#3645A3 #A33645 #45A336

tetradic

#3645A3 #A3367C #A39436 #36A35D

square

#3645A3 #A3367C #A39436 #36A35D

split-complementary

#3645A3 #A35D36 #7CA336

monochromatic

#181E47 #273275 #3645A3 #5161C5 #7F8BD5

Accessibility & contrast

On white

8.28

#3645A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#3645A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3645A3

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3645A3	#FFFFFF	#000000	##FFFFFF
##3645A3	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A6

Deuteranopia (green-blind)

#004AA1

Tritanopia (blue-blind)

#005C6D

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3645a3;
/* rgb */ color: rgb(54, 69, 163);
/* oklch */ color: oklch(43.5% 0.152 271.7);

Tailwind

colors: {
  custom: {
    50: '#7a78bf',
    500: '#3645a3',
    950: '#000000',
  },
}

SCSS

$custom: #3645a3;
$custom-light: #7a78bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3645a3",
  "rgb": {
    "r": 54,
    "g": 69,
    "b": 163
  },
  "hsl": {
    "h": 231.743,
    "s": 50.23,
    "l": 42.549
  },
  "oklch": {
    "l": 0.43501,
    "c": 0.15182,
    "h": 271.7
  },
  "luminance": 0.07685
}

Semantic roles & 50–950 ramp

primary

#3645A3

secondary

#BEB477

accent

#C74EDA

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3645A3

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

Preview Lab → · Contrast checker → · Palette generator →