#3631C4#3631C4

#3631C4 is a dark, highly saturated blue. Relative luminance 0.070; OKLCH L 43.3% C 0.217 H 273.9°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#3631C4
RGB	rgb(54, 49, 196)
HSL	hsl(242, 60%, 48%)
HSV	hsv(242, 75%, 77%)
CMYK	cmyk(72.4%, 75%, 0%, 23.1%)
CIE-LAB	lab(31.73, 49.09, -74.93)
CIE-LCH	lch(31.73, 89.58, 303.23°)
OKLab	oklab(43.25% 0.0149 -0.2168)
OKLCH	oklch(43.25% 0.217 273.9)
XYZ	xyz(12.5801, 6.9652, 52.8953)
Luminance	0.0697 (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

#3631C4 #BFC431

analogous

#3175C4 #3631C4 #7F31C4

triadic

#3631C4 #C43631 #31C436

tetradic

#3631C4 #C43175 #BFC431 #31C47F

square

#3631C4 #C43175 #BFC431 #31C47F

split-complementary

#3631C4 #C47F31 #75C431

monochromatic

#1B1962 #292593 #3631C4 #605CD6 #908DE2

Accessibility & contrast

On white

8.77

#3631C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#3631C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3631C4

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3631C4	#FFFFFF	#000000	##FFFFFF
##3631C4	1.00	8.77	2.39	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C8

Deuteranopia (green-blind)

#0044C1

Tritanopia (blue-blind)

#005C78

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3631c4;
/* rgb */ color: rgb(54, 49, 196);
/* oklch */ color: oklch(43.3% 0.217 273.9);

Tailwind

colors: {
  custom: {
    50: '#836bd7',
    500: '#3631c4',
    950: '#000000',
  },
}

SCSS

$custom: #3631c4;
$custom-light: #836bd7;
$custom-dark: #000000;

JSON

{
  "hex": "#3631c4",
  "rgb": {
    "r": 54,
    "g": 49,
    "b": 196
  },
  "hsl": {
    "h": 242.041,
    "s": 60,
    "l": 48.039
  },
  "oklch": {
    "l": 0.43254,
    "c": 0.21728,
    "h": 273.9
  },
  "luminance": 0.06966
}

Semantic roles & 50–950 ramp

primary

#3631C4

secondary

#CACD84

accent

#E345DE

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3631C4

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

Preview Lab → · Contrast checker → · Palette generator →