#3631AC#3631AC

#3631AC is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.8% C 0.188 H 275.9°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#3631AC
RGB	rgb(54, 49, 172)
HSL	hsl(242, 56%, 43%)
HSV	hsv(242, 72%, 67%)
CMYK	cmyk(68.6%, 71.5%, 0%, 32.5%)
CIE-LAB	lab(29.31, 41.25, -64.69)
CIE-LCH	lch(29.31, 76.73, 302.52°)
OKLab	oklab(40.81% 0.0193 -0.1869)
OKLCH	oklch(40.81% 0.188 275.9)
XYZ	xyz(10.0636, 5.9585, 39.6415)
Luminance	0.0596 (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

#3631AC #A7AC31

analogous

#3169AC #3631AC #7331AC

triadic

#3631AC #AC3631 #31AC36

tetradic

#3631AC #AC3169 #A7AC31 #31AC73

square

#3631AC #AC3169 #A7AC31 #31AC73

split-complementary

#3631AC #AC7331 #69AC31

monochromatic

#18164D #27237C #3631AC #534ECC #817DDA

Accessibility & contrast

On white

9.58

#3631AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#3631AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3631AC

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3631AC	#FFFFFF	#000000	##FFFFFF
##3631AC	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB0

Deuteranopia (green-blind)

#0040AA

Tritanopia (blue-blind)

#00536B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3631ac;
/* rgb */ color: rgb(54, 49, 172);
/* oklch */ color: oklch(40.8% 0.188 275.9);

Tailwind

colors: {
  custom: {
    50: '#7d6ac6',
    500: '#3631ac',
    950: '#000000',
  },
}

SCSS

$custom: #3631ac;
$custom-light: #7d6ac6;
$custom-dark: #000000;

JSON

{
  "hex": "#3631ac",
  "rgb": {
    "r": 54,
    "g": 49,
    "b": 172
  },
  "hsl": {
    "h": 242.439,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.40809,
    "c": 0.18791,
    "h": 275.9
  },
  "luminance": 0.05959
}

Semantic roles & 50–950 ramp

primary

#3631AC

secondary

#C0C376

accent

#DF49D9

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3631AC

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

Preview Lab → · Contrast checker → · Palette generator →