#3631A2#3631A2

#3631A2 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.8% C 0.175 H 276.8°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#3631A2
RGB	rgb(54, 49, 162)
HSL	hsl(243, 54%, 41%)
HSV	hsv(243, 70%, 64%)
CMYK	cmyk(66.7%, 69.8%, 0%, 36.5%)
CIE-LAB	lab(28.35, 37.90, -60.24)
CIE-LCH	lch(28.35, 71.17, 302.18°)
OKLab	oklab(39.83% 0.0209 -0.1739)
OKLCH	oklch(39.83% 0.175 276.8)
XYZ	xyz(9.1391, 5.5887, 34.7725)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3631A2 #9DA231

analogous

#3165A2 #3631A2 #6F31A2

triadic

#3631A2 #A23631 #31A236

tetradic

#3631A2 #A23165 #9DA231 #31A26F

square

#3631A2 #A23165 #9DA231 #31A26F

split-complementary

#3631A2 #A26F31 #65A231

monochromatic

#171544 #262373 #3631A2 #4E48C8 #7C77D6

Accessibility & contrast

On white

9.92

#3631A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#3631A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3631A2

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3631A2	#FFFFFF	#000000	##FFFFFF
##3631A2	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A5

Deuteranopia (green-blind)

#003EA0

Tritanopia (blue-blind)

#004F65

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3631a2;
/* rgb */ color: rgb(54, 49, 162);
/* oklch */ color: oklch(39.8% 0.175 276.8);

Tailwind

colors: {
  custom: {
    50: '#7b6abf',
    500: '#3631a2',
    950: '#000000',
  },
}

SCSS

$custom: #3631a2;
$custom-light: #7b6abf;
$custom-dark: #000000;

JSON

{
  "hex": "#3631a2",
  "rgb": {
    "r": 54,
    "g": 49,
    "b": 162
  },
  "hsl": {
    "h": 242.655,
    "s": 53.555,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39832,
    "c": 0.17515,
    "h": 276.8
  },
  "luminance": 0.0559
}

Semantic roles & 50–950 ramp

primary

#3631A2

secondary

#BBBE71

accent

#DD4BD6

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #3631A2

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

Preview Lab → · Contrast checker → · Palette generator →