#3744BC#3744BC

#3744BC is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.5% C 0.187 H 271.8°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#3744BC
RGB	rgb(55, 68, 188)
HSL	hsl(234, 55%, 48%)
HSV	hsv(234, 71%, 74%)
CMYK	cmyk(70.7%, 63.8%, 0%, 26.3%)
CIE-LAB	lab(35.16, 35.23, -64.60)
CIE-LCH	lch(35.16, 73.58, 298.61°)
OKLab	oklab(45.51% 0.006 -0.1866)
OKLCH	oklch(45.51% 0.187 271.8)
XYZ	xyz(12.7167, 8.5761, 48.5524)
Luminance	0.0858 (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

#3744BC #BCAF37

analogous

#3787BC #3744BC #6C37BC

triadic

#3744BC #BC3744 #44BC37

tetradic

#3744BC #BC3787 #BCAF37 #37BC6C

square

#3744BC #BC3787 #BCAF37 #37BC6C

split-complementary

#3744BC #BC6C37 #87BC37

monochromatic

#1B225D #29338D #3744BC #606BD0 #8F97DE

Accessibility & contrast

On white

7.73

#3744BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3744BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3744BC

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3744BC	#FFFFFF	#000000	##FFFFFF
##3744BC	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C0

Deuteranopia (green-blind)

#004DBA

Tritanopia (blue-blind)

#00637A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3744bc;
/* rgb */ color: rgb(55, 68, 188);
/* oklch */ color: oklch(45.5% 0.187 271.8);

Tailwind

colors: {
  custom: {
    50: '#8078d1',
    500: '#3744bc',
    950: '#000000',
  },
}

SCSS

$custom: #3744bc;
$custom-light: #8078d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3744bc",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 188
  },
  "hsl": {
    "h": 234.135,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.45511,
    "c": 0.18667,
    "h": 271.8
  },
  "luminance": 0.08577
}

Semantic roles & 50–950 ramp

primary

#3744BC

secondary

#C9C286

accent

#D04ADE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3744BC

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

Preview Lab → · Contrast checker → · Palette generator →