#3744BA#3744BA

#3744BA is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.3% C 0.184 H 271.9°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#3744BA
RGB	rgb(55, 68, 186)
HSL	hsl(234, 54%, 47%)
HSV	hsv(234, 70%, 73%)
CMYK	cmyk(70.4%, 63.4%, 0%, 27.1%)
CIE-LAB	lab(34.98, 34.53, -63.70)
CIE-LCH	lch(34.98, 72.46, 298.46°)
OKLab	oklab(45.33% 0.0061 -0.1839)
OKLCH	oklch(45.33% 0.184 271.9)
XYZ	xyz(12.5026, 8.4904, 47.4248)
Luminance	0.0849 (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

#3744BA #BAAD37

analogous

#3785BA #3744BA #6C37BA

triadic

#3744BA #BA3744 #44BA37

tetradic

#3744BA #BA3785 #BAAD37 #37BA6C

square

#3744BA #BA3785 #BAAD37 #37BA6C

split-complementary

#3744BA #BA6C37 #85BA37

monochromatic

#1B215C #29338B #3744BA #5F6AD0 #8E96DE

Accessibility & contrast

On white

7.78

#3744BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3744BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3744BA

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3744BA	#FFFFFF	#000000	##FFFFFF
##3744BA	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BE

Deuteranopia (green-blind)

#004CB8

Tritanopia (blue-blind)

#006278

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3744ba;
/* rgb */ color: rgb(55, 68, 186);
/* oklch */ color: oklch(45.3% 0.184 271.9);

Tailwind

colors: {
  custom: {
    50: '#7f78d0',
    500: '#3744ba',
    950: '#000000',
  },
}

SCSS

$custom: #3744ba;
$custom-light: #7f78d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3744ba",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 186
  },
  "hsl": {
    "h": 234.046,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.45333,
    "c": 0.18404,
    "h": 271.9
  },
  "luminance": 0.08492
}

Semantic roles & 50–950 ramp

primary

#3744BA

secondary

#C8C185

accent

#CF4ADE

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3744BA

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

Preview Lab → · Contrast checker → · Palette generator →