#3737C2#3737C2

#3737C2 is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 44.0% C 0.209 H 273.7°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#3737C2
RGB	rgb(55, 55, 194)
HSL	hsl(240, 56%, 49%)
HSV	hsv(240, 72%, 76%)
CMYK	cmyk(71.6%, 71.6%, 0%, 23.9%)
CIE-LAB	lab(32.78, 45.18, -72.01)
CIE-LCH	lch(32.78, 85.01, 302.10°)
OKLab	oklab(43.96% 0.0134 -0.2083)
OKLCH	oklch(43.96% 0.209 273.7)
XYZ	xyz(12.6761, 7.4384, 51.7962)
Luminance	0.0744 (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

#3737C2 #C2C237

analogous

#377DC2 #3737C2 #7D37C2

triadic

#3737C2 #C23737 #37C237

tetradic

#3737C2 #C2377D #C2C237 #37C27D

square

#3737C2 #C2377D #C2C237 #37C27D

split-complementary

#3737C2 #C27D37 #7DC237

monochromatic

#1C1C63 #292992 #3737C2 #6363D3 #9393E0

Accessibility & contrast

On white

8.44

#3737C2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3737C2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3737C2

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3737C2	#FFFFFF	#000000	##FFFFFF
##3737C2	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C6

Deuteranopia (green-blind)

#0046BF

Tritanopia (blue-blind)

#005E79

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3737c2;
/* rgb */ color: rgb(55, 55, 194);
/* oklch */ color: oklch(44.0% 0.209 273.7);

Tailwind

colors: {
  custom: {
    50: '#826fd6',
    500: '#3737c2',
    950: '#000000',
  },
}

SCSS

$custom: #3737c2;
$custom-light: #826fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3737c2",
  "rgb": {
    "r": 55,
    "g": 55,
    "b": 194
  },
  "hsl": {
    "h": 240,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.43962,
    "c": 0.20871,
    "h": 273.7
  },
  "luminance": 0.0744
}

Semantic roles & 50–950 ramp

primary

#3737C2

secondary

#CBCB89

accent

#DF49DF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3737C2

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

Preview Lab → · Contrast checker → · Palette generator →