#3633A4#3633A4

#3633A4 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.3% C 0.175 H 276.3°. Best body text is #FFFFFF at 9.69:1 contrast (WCAG AA passes).

Color values

HEX	#3633A4
RGB	rgb(54, 51, 164)
HSL	hsl(242, 53%, 42%)
HSV	hsv(242, 69%, 64%)
CMYK	cmyk(67.1%, 68.9%, 0%, 35.7%)
CIE-LAB	lab(28.98, 37.36, -60.41)
CIE-LCH	lch(28.98, 71.03, 301.74°)
OKLab	oklab(40.35% 0.0191 -0.1744)
OKLCH	oklch(40.35% 0.175 276.3)
XYZ	xyz(9.4038, 5.8314, 35.7448)
Luminance	0.0583 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3633A4 #A1A433

analogous

#3369A4 #3633A4 #6F33A4

triadic

#3633A4 #A43633 #33A436

tetradic

#3633A4 #A43369 #A1A433 #33A46F

square

#3633A4 #A43369 #A1A433 #33A46F

split-complementary

#3633A4 #A46F33 #69A433

monochromatic

#171647 #272475 #3633A4 #504DC8 #7E7BD6

Accessibility & contrast

On white

9.69

#3633A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#3633A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3633A4

9.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3633A4	#FFFFFF	#000000	##FFFFFF
##3633A4	1.00	9.69	2.17	9.69
#FFFFFF	9.69	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A7

Deuteranopia (green-blind)

#003FA2

Tritanopia (blue-blind)

#005167

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3633a4;
/* rgb */ color: rgb(54, 51, 164);
/* oklch */ color: oklch(40.3% 0.175 276.3);

Tailwind

colors: {
  custom: {
    50: '#7c6bc0',
    500: '#3633a4',
    950: '#000000',
  },
}

SCSS

$custom: #3633a4;
$custom-light: #7c6bc0;
$custom-dark: #000000;

JSON

{
  "hex": "#3633a4",
  "rgb": {
    "r": 54,
    "g": 51,
    "b": 164
  },
  "hsl": {
    "h": 241.593,
    "s": 52.558,
    "l": 42.157
  },
  "oklch": {
    "l": 0.40345,
    "c": 0.17545,
    "h": 276.3
  },
  "luminance": 0.05832
}

Semantic roles & 50–950 ramp

primary

#3633A4

secondary

#BDBF74

accent

#DC4CD8

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3633A4

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

Preview Lab → · Contrast checker → · Palette generator →