#3744B8#3744B8

#3744B8 is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.2% C 0.181 H 271.9°. Best body text is #FFFFFF at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#3744B8
RGB	rgb(55, 68, 184)
HSL	hsl(234, 54%, 47%)
HSV	hsv(234, 70%, 72%)
CMYK	cmyk(70.1%, 63%, 0%, 27.8%)
CIE-LAB	lab(34.81, 33.82, -62.80)
CIE-LCH	lch(34.81, 71.33, 298.30°)
OKLab	oklab(45.16% 0.0062 -0.1813)
OKLCH	oklch(45.16% 0.181 271.9)
XYZ	xyz(12.2915, 8.4060, 46.3129)
Luminance	0.0841 (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

#3744B8 #B8AB37

analogous

#3785B8 #3744B8 #6A37B8

triadic

#3744B8 #B83744 #44B837

tetradic

#3744B8 #B83785 #B8AB37 #37B86A

square

#3744B8 #B83785 #B8AB37 #37B86A

split-complementary

#3744B8 #B86A37 #85B837

monochromatic

#1B215A #293389 #3744B8 #5D69CF #8D95DD

Accessibility & contrast

On white

7.83

#3744B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3744B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3744B8

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3744B8	#FFFFFF	#000000	##FFFFFF
##3744B8	1.00	7.83	2.68	7.83
#FFFFFF	7.83	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BC

Deuteranopia (green-blind)

#004CB6

Tritanopia (blue-blind)

#006277

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3744b8;
/* rgb */ color: rgb(55, 68, 184);
/* oklch */ color: oklch(45.2% 0.181 271.9);

Tailwind

colors: {
  custom: {
    50: '#7f78ce',
    500: '#3744b8',
    950: '#000000',
  },
}

SCSS

$custom: #3744b8;
$custom-light: #7f78ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3744b8",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 184
  },
  "hsl": {
    "h": 233.953,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.45156,
    "c": 0.18139,
    "h": 271.9
  },
  "luminance": 0.08407
}

Semantic roles & 50–950 ramp

primary

#3744B8

secondary

#C7C084

accent

#CF4ADD

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3744B8

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

Preview Lab → · Contrast checker → · Palette generator →