#3637C4#3637C4

#3637C4 is a dark, highly saturated blue. Relative luminance 0.075; OKLCH L 44.1% C 0.211 H 273.2°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#3637C4
RGB	rgb(54, 55, 196)
HSL	hsl(240, 57%, 49%)
HSV	hsv(240, 72%, 77%)
CMYK	cmyk(72.4%, 71.9%, 0%, 23.1%)
CIE-LAB	lab(32.92, 45.74, -72.96)
CIE-LCH	lch(32.92, 86.12, 302.08°)
OKLab	oklab(44.1% 0.0119 -0.2111)
OKLCH	oklch(44.1% 0.211 273.2)
XYZ	xyz(12.8480, 7.5009, 52.9846)
Luminance	0.0750 (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

#3637C4 #C4C336

analogous

#367EC4 #3637C4 #7C36C4

triadic

#3637C4 #C43637 #37C436

tetradic

#3637C4 #C4367E #C4C336 #36C47C

square

#3637C4 #C4367E #C4C336 #36C47C

split-complementary

#3637C4 #C47C36 #7EC436

monochromatic

#1C1C64 #292A94 #3637C4 #6364D4 #9394E1

Accessibility & contrast

On white

8.40

#3637C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#3637C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3637C4

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3637C4	#FFFFFF	#000000	##FFFFFF
##3637C4	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C8

Deuteranopia (green-blind)

#0047C1

Tritanopia (blue-blind)

#005F7A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3637c4;
/* rgb */ color: rgb(54, 55, 196);
/* oklch */ color: oklch(44.1% 0.211 273.2);

Tailwind

colors: {
  custom: {
    50: '#826fd7',
    500: '#3637c4',
    950: '#000000',
  },
}

SCSS

$custom: #3637c4;
$custom-light: #826fd7;
$custom-dark: #000000;

JSON

{
  "hex": "#3637c4",
  "rgb": {
    "r": 54,
    "g": 55,
    "b": 196
  },
  "hsl": {
    "h": 239.577,
    "s": 56.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.44102,
    "c": 0.21141,
    "h": 273.2
  },
  "luminance": 0.07502
}

Semantic roles & 50–950 ramp

primary

#3637C4

secondary

#CCCC89

accent

#DF48E0

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3637C4

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

Preview Lab → · Contrast checker → · Palette generator →