#3744BF#3744BF

#3744BF is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.8% C 0.191 H 271.7°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#3744BF
RGB	rgb(55, 68, 191)
HSL	hsl(234, 55%, 48%)
HSV	hsv(234, 71%, 75%)
CMYK	cmyk(71.2%, 64.4%, 0%, 25.1%)
CIE-LAB	lab(35.41, 36.29, -65.94)
CIE-LCH	lch(35.41, 75.26, 298.83°)
OKLab	oklab(45.78% 0.0058 -0.1905)
OKLCH	oklch(45.78% 0.191 271.7)
XYZ	xyz(13.0435, 8.7068, 50.2733)
Luminance	0.0871 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3744BF #BFB237

analogous

#3788BF #3744BF #6E37BF

triadic

#3744BF #BF3744 #44BF37

tetradic

#3744BF #BF3788 #BFB237 #37BF6E

square

#3744BF #BF3788 #BFB237 #37BF6E

split-complementary

#3744BF #BF6E37 #88BF37

monochromatic

#1C2260 #29338F #3744BF #626CD2 #9199DF

Accessibility & contrast

On white

7.66

#3744BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3744BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3744BF

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3744BF	#FFFFFF	#000000	##FFFFFF
##3744BF	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC3

Deuteranopia (green-blind)

#004DBD

Tritanopia (blue-blind)

#00647B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3744bf;
/* rgb */ color: rgb(55, 68, 191);
/* oklch */ color: oklch(45.8% 0.191 271.7);

Tailwind

colors: {
  custom: {
    50: '#8078d3',
    500: '#3744bf',
    950: '#000000',
  },
}

SCSS

$custom: #3744bf;
$custom-light: #8078d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3744bf",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 191
  },
  "hsl": {
    "h": 234.265,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.4578,
    "c": 0.19058,
    "h": 271.7
  },
  "luminance": 0.08708
}

Semantic roles & 50–950 ramp

primary

#3744BF

secondary

#CAC488

accent

#D049DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3744BF

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

Preview Lab → · Contrast checker → · Palette generator →