#3744B0#3744B0

#3744B0 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.5% C 0.171 H 272.2°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#3744B0
RGB	rgb(55, 68, 176)
HSL	hsl(234, 52%, 45%)
HSV	hsv(234, 69%, 69%)
CMYK	cmyk(68.8%, 61.4%, 0%, 31%)
CIE-LAB	lab(34.15, 30.97, -59.15)
CIE-LCH	lch(34.15, 66.77, 297.64°)
OKLab	oklab(44.46% 0.0065 -0.1706)
OKLCH	oklch(44.46% 0.171 272.2)
XYZ	xyz(11.4765, 8.0800, 42.0207)
Luminance	0.0808 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3744B0 #B0A337

analogous

#3780B0 #3744B0 #6737B0

triadic

#3744B0 #B03744 #44B037

tetradic

#3744B0 #B03780 #B0A337 #37B067

square

#3744B0 #B03780 #B0A337 #37B067

split-complementary

#3744B0 #B06737 #80B037

monochromatic

#1A2053 #283281 #3744B0 #5965CB #8890DA

Accessibility & contrast

On white

8.03

#3744B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3744B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3744B0

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3744B0	#FFFFFF	#000000	##FFFFFF
##3744B0	1.00	8.03	2.62	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B4

Deuteranopia (green-blind)

#004BAE

Tritanopia (blue-blind)

#005F73

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3744b0;
/* rgb */ color: rgb(55, 68, 176);
/* oklch */ color: oklch(44.5% 0.171 272.2);

Tailwind

colors: {
  custom: {
    50: '#7d78c8',
    500: '#3744b0',
    950: '#000000',
  },
}

SCSS

$custom: #3744b0;
$custom-light: #7d78c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3744b0",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 176
  },
  "hsl": {
    "h": 233.554,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.44459,
    "c": 0.1707,
    "h": 272.2
  },
  "luminance": 0.08081
}

Semantic roles & 50–950 ramp

primary

#3744B0

secondary

#C4BC7F

accent

#CC4CDC

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3744B0

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

Preview Lab → · Contrast checker → · Palette generator →