#3633BE#3633BE

#3633BE is a dark, highly saturated blue. Relative luminance 0.069; OKLCH L 42.9% C 0.208 H 274.1°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#3633BE
RGB	rgb(54, 51, 190)
HSL	hsl(241, 58%, 47%)
HSV	hsv(241, 73%, 75%)
CMYK	cmyk(71.6%, 73.2%, 0%, 25.5%)
CIE-LAB	lab(31.51, 46.04, -71.77)
CIE-LCH	lch(31.51, 85.27, 302.68°)
OKLab	oklab(42.91% 0.015 -0.2076)
OKLCH	oklch(42.91% 0.208 274.1)
XYZ	xyz(11.9963, 6.8685, 49.3987)
Luminance	0.0687 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.09

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3633BE #BBBE33

analogous

#3376BE #3633BE #7C33BE

triadic

#3633BE #BE3633 #33BE36

tetradic

#3633BE #BE3376 #BBBE33 #33BE7C

square

#3633BE #BE3376 #BBBE33 #33BE7C

split-complementary

#3633BE #BE7C33 #76BE33

monochromatic

#1B195E #28268E #3633BE #5E5BD3 #8D8BE0

Accessibility & contrast

On white

8.85

#3633BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#3633BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3633BE

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3633BE	#FFFFFF	#000000	##FFFFFF
##3633BE	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C2

Deuteranopia (green-blind)

#0044BB

Tritanopia (blue-blind)

#005B76

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3633be;
/* rgb */ color: rgb(54, 51, 190);
/* oklch */ color: oklch(42.9% 0.208 274.1);

Tailwind

colors: {
  custom: {
    50: '#816cd3',
    500: '#3633be',
    950: '#000000',
  },
}

SCSS

$custom: #3633be;
$custom-light: #816cd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3633be",
  "rgb": {
    "r": 54,
    "g": 51,
    "b": 190
  },
  "hsl": {
    "h": 241.295,
    "s": 57.676,
    "l": 47.255
  },
  "oklch": {
    "l": 0.42914,
    "c": 0.20812,
    "h": 274.1
  },
  "luminance": 0.0687
}

Semantic roles & 50–950 ramp

primary

#3633BE

secondary

#C9CA83

accent

#E147DE

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3633BE

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

Preview Lab → · Contrast checker → · Palette generator →