#3631C5#3631C5

#3631C5 is a dark, highly saturated blue. Relative luminance 0.070; OKLCH L 43.4% C 0.218 H 273.9°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#3631C5
RGB	rgb(54, 49, 197)
HSL	hsl(242, 60%, 48%)
HSV	hsv(242, 75%, 77%)
CMYK	cmyk(72.6%, 75.1%, 0%, 22.7%)
CIE-LAB	lab(31.83, 49.41, -75.35)
CIE-LCH	lch(31.83, 90.10, 303.25°)
OKLab	oklab(43.36% 0.0147 -0.218)
OKLCH	oklch(43.36% 0.218 273.9)
XYZ	xyz(12.6943, 7.0108, 53.4967)
Luminance	0.0701 (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

#3631C5 #C0C531

analogous

#3176C5 #3631C5 #8031C5

triadic

#3631C5 #C53631 #31C536

tetradic

#3631C5 #C53176 #C0C531 #31C580

square

#3631C5 #C53176 #C0C531 #31C580

split-complementary

#3631C5 #C58031 #76C531

monochromatic

#1B1963 #292594 #3631C5 #615DD7 #908EE3

Accessibility & contrast

On white

8.74

#3631C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3631C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3631C5

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3631C5	#FFFFFF	#000000	##FFFFFF
##3631C5	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C9

Deuteranopia (green-blind)

#0044C2

Tritanopia (blue-blind)

#005C79

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3631c5;
/* rgb */ color: rgb(54, 49, 197);
/* oklch */ color: oklch(43.4% 0.218 273.9);

Tailwind

colors: {
  custom: {
    50: '#836bd8',
    500: '#3631c5',
    950: '#000000',
  },
}

SCSS

$custom: #3631c5;
$custom-light: #836bd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3631c5",
  "rgb": {
    "r": 54,
    "g": 49,
    "b": 197
  },
  "hsl": {
    "h": 242.027,
    "s": 60.163,
    "l": 48.235
  },
  "oklch": {
    "l": 0.43358,
    "c": 0.21846,
    "h": 273.9
  },
  "luminance": 0.07012
}

Semantic roles & 50–950 ramp

primary

#3631C5

secondary

#CBCD85

accent

#E344DE

background

#F8F6FD

surface

#F0EBFB

border

#CBC6D4

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3631C5

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

Preview Lab → · Contrast checker → · Palette generator →