#3643C3#3643C3

#3643C3 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.9% C 0.197 H 271.5°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#3643C3
RGB	rgb(54, 67, 195)
HSL	hsl(234, 57%, 49%)
HSV	hsv(234, 72%, 76%)
CMYK	cmyk(72.3%, 65.6%, 0%, 23.5%)
CIE-LAB	lab(35.47, 38.20, -68.18)
CIE-LCH	lch(35.47, 78.16, 299.26°)
OKLab	oklab(45.92% 0.0051 -0.1971)
OKLCH	oklch(45.92% 0.197 271.5)
XYZ	xyz(13.3755, 8.7373, 52.6007)
Luminance	0.0874 (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

#3643C3 #C3B636

analogous

#368AC3 #3643C3 #7036C3

triadic

#3643C3 #C33643 #43C336

tetradic

#3643C3 #C3368A #C3B636 #36C370

square

#3643C3 #C3368A #C3B636 #36C370

split-complementary

#3643C3 #C37036 #8AC336

monochromatic

#1B2263 #293393 #3643C3 #636DD4 #929AE1

Accessibility & contrast

On white

7.64

#3643C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#3643C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3643C3

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3643C3	#FFFFFF	#000000	##FFFFFF
##3643C3	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC7

Deuteranopia (green-blind)

#004DC1

Tritanopia (blue-blind)

#00657D

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3643c3;
/* rgb */ color: rgb(54, 67, 195);
/* oklch */ color: oklch(45.9% 0.197 271.5);

Tailwind

colors: {
  custom: {
    50: '#8177d6',
    500: '#3643c3',
    950: '#000000',
  },
}

SCSS

$custom: #3643c3;
$custom-light: #8177d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3643c3",
  "rgb": {
    "r": 54,
    "g": 67,
    "b": 195
  },
  "hsl": {
    "h": 234.468,
    "s": 56.627,
    "l": 48.824
  },
  "oklch": {
    "l": 0.45917,
    "c": 0.19716,
    "h": 271.5
  },
  "luminance": 0.08739
}

Semantic roles & 50–950 ramp

primary

#3643C3

secondary

#CCC689

accent

#D248E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3643C3

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

Preview Lab → · Contrast checker → · Palette generator →