#3B37BF#3B37BF

#3B37BF is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 43.9% C 0.204 H 275.3°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#3B37BF
RGB	rgb(59, 55, 191)
HSL	hsl(242, 55%, 48%)
HSV	hsv(242, 71%, 75%)
CMYK	cmyk(69.1%, 71.2%, 0%, 25.1%)
CIE-LAB	lab(32.75, 44.62, -70.30)
CIE-LCH	lch(32.75, 83.26, 302.40°)
OKLab	oklab(43.92% 0.0187 -0.2032)
OKLCH	oklch(43.92% 0.204 275.3)
XYZ	xyz(12.5707, 7.4226, 50.0503)
Luminance	0.0742 (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

#3B37BF #BBBF37

analogous

#3777BF #3B37BF #7F37BF

triadic

#3B37BF #BF3B37 #37BF3B

tetradic

#3B37BF #BF3777 #BBBF37 #37BF7F

square

#3B37BF #BF3777 #BBBF37 #37BF7F

split-complementary

#3B37BF #BF7F37 #77BF37

monochromatic

#1E1C60 #2C298F #3B37BF #6562D2 #9391DF

Accessibility & contrast

On white

8.45

#3B37BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#3B37BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B37BF

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B37BF	#FFFFFF	#000000	##FFFFFF
##3B37BF	1.00	8.45	2.48	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C3

Deuteranopia (green-blind)

#0047BD

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3b37bf;
/* rgb */ color: rgb(59, 55, 191);
/* oklch */ color: oklch(43.9% 0.204 275.3);

Tailwind

colors: {
  custom: {
    50: '#836fd4',
    500: '#3b37bf',
    950: '#000000',
  },
}

SCSS

$custom: #3b37bf;
$custom-light: #836fd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3b37bf",
  "rgb": {
    "r": 59,
    "g": 55,
    "b": 191
  },
  "hsl": {
    "h": 241.765,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.43917,
    "c": 0.20403,
    "h": 275.3
  },
  "luminance": 0.07424
}

Semantic roles & 50–950 ramp

primary

#3B37BF

secondary

#C8CA88

accent

#DF49DA

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3B37BF

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

Preview Lab → · Contrast checker → · Palette generator →