#3744B3#3744B3

#3744B3 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.7% C 0.175 H 272.1°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#3744B3
RGB	rgb(55, 68, 179)
HSL	hsl(234, 53%, 46%)
HSV	hsv(234, 69%, 70%)
CMYK	cmyk(69.3%, 62%, 0%, 29.8%)
CIE-LAB	lab(34.40, 32.04, -60.53)
CIE-LCH	lch(34.40, 68.48, 297.90°)
OKLab	oklab(44.72% 0.0064 -0.1746)
OKLCH	oklch(44.72% 0.175 272.1)
XYZ	xyz(11.7766, 8.2000, 43.6012)
Luminance	0.0820 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3744B3 #B3A637

analogous

#3782B3 #3744B3 #6837B3

triadic

#3744B3 #B33744 #44B337

tetradic

#3744B3 #B33782 #B3A637 #37B368

square

#3744B3 #B33782 #B3A637 #37B368

split-complementary

#3744B3 #B36837 #82B337

monochromatic

#1A2055 #293284 #3744B3 #5B67CD #8A92DB

Accessibility & contrast

On white

7.95

#3744B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3744B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3744B3

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3744B3	#FFFFFF	#000000	##FFFFFF
##3744B3	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B7

Deuteranopia (green-blind)

#004BB1

Tritanopia (blue-blind)

#006075

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3744b3;
/* rgb */ color: rgb(55, 68, 179);
/* oklch */ color: oklch(44.7% 0.175 272.1);

Tailwind

colors: {
  custom: {
    50: '#7e78cb',
    500: '#3744b3',
    950: '#000000',
  },
}

SCSS

$custom: #3744b3;
$custom-light: #7e78cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3744b3",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 179
  },
  "hsl": {
    "h": 233.71,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.44718,
    "c": 0.17474,
    "h": 272.1
  },
  "luminance": 0.08201
}

Semantic roles & 50–950 ramp

primary

#3744B3

secondary

#C5BE81

accent

#CD4BDC

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3744B3

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

Preview Lab → · Contrast checker → · Palette generator →