#3744AD#3744AD

#3744AD is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.2% C 0.167 H 272.2°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#3744AD
RGB	rgb(55, 68, 173)
HSL	hsl(233, 52%, 45%)
HSV	hsv(233, 68%, 68%)
CMYK	cmyk(68.2%, 60.7%, 0%, 32.2%)
CIE-LAB	lab(33.90, 29.90, -57.76)
CIE-LCH	lch(33.90, 65.04, 297.37°)
OKLab	oklab(44.2% 0.0065 -0.1665)
OKLCH	oklch(44.2% 0.167 272.2)
XYZ	xyz(11.1830, 7.9626, 40.4746)
Luminance	0.0796 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.32

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3744AD #ADA037

analogous

#377FAD #3744AD #6537AD

triadic

#3744AD #AD3744 #44AD37

tetradic

#3744AD #AD377F #ADA037 #37AD65

square

#3744AD #AD377F #ADA037 #37AD65

split-complementary

#3744AD #AD6537 #7FAD37

monochromatic

#191F50 #28327F #3744AD #5764CA #868FD8

Accessibility & contrast

On white

8.10

#3744AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#3744AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3744AD

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3744AD	#FFFFFF	#000000	##FFFFFF
##3744AD	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B0

Deuteranopia (green-blind)

#004AAB

Tritanopia (blue-blind)

#005E72

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3744ad;
/* rgb */ color: rgb(55, 68, 173);
/* oklch */ color: oklch(44.2% 0.167 272.2);

Tailwind

colors: {
  custom: {
    50: '#7d77c6',
    500: '#3744ad',
    950: '#000000',
  },
}

SCSS

$custom: #3744ad;
$custom-light: #7d77c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3744ad",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 173
  },
  "hsl": {
    "h": 233.39,
    "s": 51.754,
    "l": 44.706
  },
  "oklch": {
    "l": 0.44202,
    "c": 0.16664,
    "h": 272.2
  },
  "luminance": 0.07964
}

Semantic roles & 50–950 ramp

primary

#3744AD

secondary

#C2BB7D

accent

#CB4DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3744AD

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

Preview Lab → · Contrast checker → · Palette generator →