#3744B6#3744B6

#3744B6 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 45.0% C 0.179 H 272.0°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#3744B6
RGB	rgb(55, 68, 182)
HSL	hsl(234, 54%, 46%)
HSV	hsv(234, 70%, 71%)
CMYK	cmyk(69.8%, 62.6%, 0%, 28.6%)
CIE-LAB	lab(34.65, 33.11, -61.89)
CIE-LCH	lch(34.65, 70.19, 298.14°)
OKLab	oklab(44.98% 0.0063 -0.1786)
OKLCH	oklch(44.98% 0.179 272)
XYZ	xyz(12.0833, 8.3227, 45.2165)
Luminance	0.0832 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.43

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3744B6 #B6A937

analogous

#3784B6 #3744B6 #6A37B6

triadic

#3744B6 #B63744 #44B637

tetradic

#3744B6 #B63784 #B6A937 #37B66A

square

#3744B6 #B63784 #B6A937 #37B66A

split-complementary

#3744B6 #B66A37 #84B637

monochromatic

#1B2158 #293287 #3744B6 #5C68CE #8B94DC

Accessibility & contrast

On white

7.88

#3744B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3744B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3744B6

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3744B6	#FFFFFF	#000000	##FFFFFF
##3744B6	1.00	7.88	2.66	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BA

Deuteranopia (green-blind)

#004CB4

Tritanopia (blue-blind)

#006176

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3744b6;
/* rgb */ color: rgb(55, 68, 182);
/* oklch */ color: oklch(45.0% 0.179 272.0);

Tailwind

colors: {
  custom: {
    50: '#7e78cd',
    500: '#3744b6',
    950: '#000000',
  },
}

SCSS

$custom: #3744b6;
$custom-light: #7e78cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3744b6",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 182
  },
  "hsl": {
    "h": 233.858,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.4498,
    "c": 0.17874,
    "h": 272
  },
  "luminance": 0.08324
}

Semantic roles & 50–950 ramp

primary

#3744B6

secondary

#C6BF82

accent

#CE4BDD

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3744B6

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

Preview Lab → · Contrast checker → · Palette generator →