#3744BD#3744BD

#3744BD is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.6% C 0.188 H 271.8°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#3744BD
RGB	rgb(55, 68, 189)
HSL	hsl(234, 55%, 48%)
HSV	hsv(234, 71%, 74%)
CMYK	cmyk(70.9%, 64%, 0%, 25.9%)
CIE-LAB	lab(35.24, 35.59, -65.05)
CIE-LCH	lch(35.24, 74.14, 298.68°)
OKLab	oklab(45.6% 0.0059 -0.1879)
OKLCH	oklch(45.6% 0.188 271.8)
XYZ	xyz(12.8249, 8.6193, 49.1221)
Luminance	0.0862 (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

#3744BD #BDB037

analogous

#3787BD #3744BD #6D37BD

triadic

#3744BD #BD3744 #44BD37

tetradic

#3744BD #BD3787 #BDB037 #37BD6D

square

#3744BD #BD3787 #BDB037 #37BD6D

split-complementary

#3744BD #BD6D37 #87BD37

monochromatic

#1B225E #29338E #3744BD #606BD1 #9097DF

Accessibility & contrast

On white

7.71

#3744BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3744BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3744BD

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3744BD	#FFFFFF	#000000	##FFFFFF
##3744BD	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C1

Deuteranopia (green-blind)

#004DBB

Tritanopia (blue-blind)

#00637A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3744bd;
/* rgb */ color: rgb(55, 68, 189);
/* oklch */ color: oklch(45.6% 0.188 271.8);

Tailwind

colors: {
  custom: {
    50: '#8078d2',
    500: '#3744bd',
    950: '#000000',
  },
}

SCSS

$custom: #3744bd;
$custom-light: #8078d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3744bd",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 189
  },
  "hsl": {
    "h": 234.179,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.45601,
    "c": 0.18797,
    "h": 271.8
  },
  "luminance": 0.08621
}

Semantic roles & 50–950 ramp

primary

#3744BD

secondary

#C9C386

accent

#D04ADE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3744BD

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

Preview Lab → · Contrast checker → · Palette generator →