#3633BA#3633BA

#3633BA is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 42.5% C 0.203 H 274.4°. Best body text is #FFFFFF at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#3633BA
RGB	rgb(54, 51, 186)
HSL	hsl(241, 57%, 46%)
HSV	hsv(241, 73%, 73%)
CMYK	cmyk(71%, 72.6%, 0%, 27.1%)
CIE-LAB	lab(31.10, 44.73, -70.07)
CIE-LCH	lch(31.10, 83.13, 302.55°)
OKLab	oklab(42.51% 0.0157 -0.2026)
OKLCH	oklch(42.51% 0.203 274.4)
XYZ	xyz(11.5651, 6.6960, 47.1278)
Luminance	0.0670 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 3.74

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3633BA #B7BA33

analogous

#3374BA #3633BA #7A33BA

triadic

#3633BA #BA3633 #33BA36

tetradic

#3633BA #BA3374 #B7BA33 #33BA7A

square

#3633BA #BA3374 #B7BA33 #33BA7A

split-complementary

#3633BA #BA7A33 #74BA33

monochromatic

#1A195A #28268A #3633BA #5B59D1 #8B89DF

Accessibility & contrast

On white

8.98

#3633BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#3633BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3633BA

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3633BA	#FFFFFF	#000000	##FFFFFF
##3633BA	1.00	8.98	2.34	8.98
#FFFFFF	8.98	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBE

Deuteranopia (green-blind)

#0043B8

Tritanopia (blue-blind)

#005973

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3633ba;
/* rgb */ color: rgb(54, 51, 186);
/* oklch */ color: oklch(42.5% 0.203 274.4);

Tailwind

colors: {
  custom: {
    50: '#806cd0',
    500: '#3633ba',
    950: '#000000',
  },
}

SCSS

$custom: #3633ba;
$custom-light: #806cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3633ba",
  "rgb": {
    "r": 54,
    "g": 51,
    "b": 186
  },
  "hsl": {
    "h": 241.333,
    "s": 56.962,
    "l": 46.471
  },
  "oklch": {
    "l": 0.42508,
    "c": 0.20323,
    "h": 274.4
  },
  "luminance": 0.06697
}

Semantic roles & 50–950 ramp

primary

#3633BA

secondary

#C7C980

accent

#E048DD

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3633BA

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

Preview Lab → · Contrast checker → · Palette generator →