#3631C8#3631C8

#3631C8 is a dark, highly saturated blue. Relative luminance 0.072; OKLCH L 43.7% C 0.222 H 273.6°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#3631C8
RGB	rgb(54, 49, 200)
HSL	hsl(242, 61%, 49%)
HSV	hsv(242, 76%, 78%)
CMYK	cmyk(73%, 75.5%, 0%, 21.6%)
CIE-LAB	lab(32.15, 50.37, -76.59)
CIE-LCH	lch(32.15, 91.66, 303.33°)
OKLab	oklab(43.67% 0.0141 -0.2216)
OKLCH	oklch(43.67% 0.222 273.6)
XYZ	xyz(13.0415, 7.1497, 55.3251)
Luminance	0.0715 (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

#3631C8 #C3C831

analogous

#3178C8 #3631C8 #8231C8

triadic

#3631C8 #C83631 #31C836

tetradic

#3631C8 #C83178 #C3C831 #31C882

square

#3631C8 #C83178 #C3C831 #31C882

split-complementary

#3631C8 #C88231 #78C831

monochromatic

#1B1966 #292597 #3631C8 #635FD8 #9290E4

Accessibility & contrast

On white

8.64

#3631C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3631C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3631C8

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3631C8	#FFFFFF	#000000	##FFFFFF
##3631C8	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053CC

Deuteranopia (green-blind)

#0044C5

Tritanopia (blue-blind)

#005E7B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3631c8;
/* rgb */ color: rgb(54, 49, 200);
/* oklch */ color: oklch(43.7% 0.222 273.6);

Tailwind

colors: {
  custom: {
    50: '#846cda',
    500: '#3631c8',
    950: '#000000',
  },
}

SCSS

$custom: #3631c8;
$custom-light: #846cda;
$custom-dark: #000000;

JSON

{
  "hex": "#3631c8",
  "rgb": {
    "r": 54,
    "g": 49,
    "b": 200
  },
  "hsl": {
    "h": 241.987,
    "s": 60.643,
    "l": 48.824
  },
  "oklch": {
    "l": 0.43673,
    "c": 0.22202,
    "h": 273.6
  },
  "luminance": 0.07151
}

Semantic roles & 50–950 ramp

primary

#3631C8

secondary

#CCCE86

accent

#E444DE

background

#F8F6FD

surface

#F0EBFB

border

#CBC6D4

text

#0D0715

muted

#7D7A83

Preview Lab

Preview with #3631C8

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

Preview Lab → · Contrast checker → · Palette generator →