#3744AC#3744AC

#3744AC is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.1% C 0.165 H 272.3°. Best body text is #FFFFFF at 8.12:1 contrast (WCAG AA passes).

Color values

HEX	#3744AC
RGB	rgb(55, 68, 172)
HSL	hsl(233, 52%, 45%)
HSV	hsv(233, 68%, 67%)
CMYK	cmyk(68%, 60.5%, 0%, 32.5%)
CIE-LAB	lab(33.82, 29.54, -57.30)
CIE-LCH	lch(33.82, 64.46, 297.27°)
OKLab	oklab(44.12% 0.0065 -0.1651)
OKLCH	oklch(44.12% 0.165 272.3)
XYZ	xyz(11.0866, 7.9240, 39.9670)
Luminance	0.0793 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.43

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3744AC #AC9F37

analogous

#377FAC #3744AC #6437AC

triadic

#3744AC #AC3744 #44AC37

tetradic

#3744AC #AC377F #AC9F37 #37AC64

square

#3744AC #AC377F #AC9F37 #37AC64

split-complementary

#3744AC #AC6437 #7FAC37

monochromatic

#191F4F #28327E #3744AC #5764C9 #858FD8

Accessibility & contrast

On white

8.12

#3744AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#3744AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3744AC

8.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3744AC	#FFFFFF	#000000	##FFFFFF
##3744AC	1.00	8.12	2.59	8.12
#FFFFFF	8.12	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AF

Deuteranopia (green-blind)

#004AAA

Tritanopia (blue-blind)

#005E71

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3744ac;
/* rgb */ color: rgb(55, 68, 172);
/* oklch */ color: oklch(44.1% 0.165 272.3);

Tailwind

colors: {
  custom: {
    50: '#7c77c6',
    500: '#3744ac',
    950: '#000000',
  },
}

SCSS

$custom: #3744ac;
$custom-light: #7c77c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3744ac",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 172
  },
  "hsl": {
    "h": 233.333,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.44117,
    "c": 0.16527,
    "h": 272.3
  },
  "luminance": 0.07925
}

Semantic roles & 50–950 ramp

primary

#3744AC

secondary

#C2BA7D

accent

#CB4DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3744AC

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

Preview Lab → · Contrast checker → · Palette generator →