#3637C3#3637C3

#3637C3 is a dark, highly saturated blue. Relative luminance 0.075; OKLCH L 44.0% C 0.210 H 273.3°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#3637C3
RGB	rgb(54, 55, 195)
HSL	hsl(240, 57%, 49%)
HSV	hsv(240, 72%, 76%)
CMYK	cmyk(72.3%, 71.8%, 0%, 23.5%)
CIE-LAB	lab(32.82, 45.41, -72.54)
CIE-LCH	lch(32.82, 85.58, 302.05°)
OKLab	oklab(44% 0.0121 -0.2098)
OKLCH	oklch(44% 0.21 273.3)
XYZ	xyz(12.7345, 7.4555, 52.3871)
Luminance	0.0746 (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

#3637C3 #C3C236

analogous

#367EC3 #3637C3 #7C36C3

triadic

#3637C3 #C33637 #37C336

tetradic

#3637C3 #C3367E #C3C236 #36C37C

square

#3637C3 #C3367E #C3C236 #36C37C

split-complementary

#3637C3 #C37C36 #7EC336

monochromatic

#1B1C63 #292993 #3637C3 #6363D4 #9293E1

Accessibility & contrast

On white

8.43

#3637C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3637C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3637C3

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3637C3	#FFFFFF	#000000	##FFFFFF
##3637C3	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C7

Deuteranopia (green-blind)

#0046C0

Tritanopia (blue-blind)

#005F79

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3637c3;
/* rgb */ color: rgb(54, 55, 195);
/* oklch */ color: oklch(44.0% 0.210 273.3);

Tailwind

colors: {
  custom: {
    50: '#826fd6',
    500: '#3637c3',
    950: '#000000',
  },
}

SCSS

$custom: #3637c3;
$custom-light: #826fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3637c3",
  "rgb": {
    "r": 54,
    "g": 55,
    "b": 195
  },
  "hsl": {
    "h": 239.574,
    "s": 56.627,
    "l": 48.824
  },
  "oklch": {
    "l": 0.44002,
    "c": 0.21019,
    "h": 273.3
  },
  "luminance": 0.07457
}

Semantic roles & 50–950 ramp

primary

#3637C3

secondary

#CCCB89

accent

#DF48E0

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3637C3

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

Preview Lab → · Contrast checker → · Palette generator →