#3631D4#3631D4

#3631D4 is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.9% C 0.236 H 272.8°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#3631D4
RGB	rgb(54, 49, 212)
HSL	hsl(242, 65%, 51%)
HSV	hsv(242, 77%, 83%)
CMYK	cmyk(74.5%, 76.9%, 0%, 16.9%)
CIE-LAB	lab(33.42, 54.14, -81.45)
CIE-LCH	lch(33.42, 97.81, 303.61°)
OKLab	oklab(44.95% 0.0117 -0.2357)
OKLCH	oklch(44.95% 0.236 272.8)
XYZ	xyz(14.4993, 7.7328, 63.0030)
Luminance	0.0773 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.67

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3631D4 #CFD431

analogous

#317ED4 #3631D4 #8731D4

triadic

#3631D4 #D43631 #31D436

tetradic

#3631D4 #D4317E #CFD431 #31D487

square

#3631D4 #D4317E #CFD431 #31D487

split-complementary

#3631D4 #D48731 #7ED431

monochromatic

#1B1873 #2723A5 #3631D4 #6764DF #9996E9

Accessibility & contrast

On white

8.25

#3631D4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#3631D4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3631D4

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3631D4	#FFFFFF	#000000	##FFFFFF
##3631D4	1.00	8.25	2.55	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056D9

Deuteranopia (green-blind)

#0047D1

Tritanopia (blue-blind)

#006282

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3631d4;
/* rgb */ color: rgb(54, 49, 212);
/* oklch */ color: oklch(44.9% 0.236 272.8);

Tailwind

colors: {
  custom: {
    50: '#866ce3',
    500: '#3631d4',
    950: '#000000',
  },
}

SCSS

$custom: #3631d4;
$custom-light: #866ce3;
$custom-dark: #000000;

JSON

{
  "hex": "#3631d4",
  "rgb": {
    "r": 54,
    "g": 49,
    "b": 212
  },
  "hsl": {
    "h": 241.84,
    "s": 65.462,
    "l": 51.176
  },
  "oklch": {
    "l": 0.44946,
    "c": 0.236,
    "h": 272.8
  },
  "luminance": 0.07734
}

Semantic roles & 50–950 ramp

primary

#3631D4

secondary

#D2D48C

accent

#E83FE3

background

#F9F6FE

surface

#F1ECFC

border

#CBC7D5

text

#0D0716

muted

#7E7A84

Preview Lab

Preview with #3631D4

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

Preview Lab → · Contrast checker → · Palette generator →