#3737C3#3737C3

#3737C3 is a dark, highly saturated blue. Relative luminance 0.075; OKLCH L 44.1% C 0.210 H 273.6°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#3737C3
RGB	rgb(55, 55, 195)
HSL	hsl(240, 56%, 49%)
HSV	hsv(240, 72%, 76%)
CMYK	cmyk(71.8%, 71.8%, 0%, 23.5%)
CIE-LAB	lab(32.88, 45.51, -72.44)
CIE-LCH	lch(32.88, 85.55, 302.14°)
OKLab	oklab(44.06% 0.0133 -0.2095)
OKLCH	oklch(44.06% 0.21 273.6)
XYZ	xyz(12.7888, 7.4835, 52.3896)
Luminance	0.0748 (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

#3737C3 #C3C337

analogous

#377DC3 #3737C3 #7D37C3

triadic

#3737C3 #C33737 #37C337

tetradic

#3737C3 #C3377D #C3C337 #37C37D

square

#3737C3 #C3377D #C3C337 #37C37D

split-complementary

#3737C3 #C37D37 #7DC337

monochromatic

#1C1C64 #2A2A93 #3737C3 #6464D3 #9494E1

Accessibility & contrast

On white

8.41

#3737C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#3737C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3737C3

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3737C3	#FFFFFF	#000000	##FFFFFF
##3737C3	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C7

Deuteranopia (green-blind)

#0047C0

Tritanopia (blue-blind)

#005E79

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3737c3;
/* rgb */ color: rgb(55, 55, 195);
/* oklch */ color: oklch(44.1% 0.210 273.6);

Tailwind

colors: {
  custom: {
    50: '#826fd6',
    500: '#3737c3',
    950: '#000000',
  },
}

SCSS

$custom: #3737c3;
$custom-light: #826fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3737c3",
  "rgb": {
    "r": 55,
    "g": 55,
    "b": 195
  },
  "hsl": {
    "h": 240,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.44062,
    "c": 0.20993,
    "h": 273.6
  },
  "luminance": 0.07485
}

Semantic roles & 50–950 ramp

primary

#3737C3

secondary

#CCCC8A

accent

#DF49DF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3737C3

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

Preview Lab → · Contrast checker → · Palette generator →