#3734DD#3734DD

#3734DD is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 46.3% C 0.243 H 272.3°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#3734DD
RGB	rgb(55, 52, 221)
HSL	hsl(241, 71%, 54%)
HSV	hsv(241, 76%, 87%)
CMYK	cmyk(75.1%, 76.5%, 0%, 13.3%)
CIE-LAB	lab(34.98, 55.48, -84.06)
CIE-LCH	lch(34.98, 100.72, 303.43°)
OKLab	oklab(46.34% 0.0099 -0.2433)
OKLCH	oklch(46.34% 0.243 272.3)
XYZ	xyz(15.8503, 8.4870, 69.1954)
Luminance	0.0849 (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

#3734DD #DADD34

analogous

#3485DD #3734DD #8B34DD

triadic

#3734DD #DD3734 #34DD37

tetradic

#3734DD #DD3485 #DADD34 #34DD8B

square

#3734DD #DD3485 #DADD34 #34DD8B

split-complementary

#3734DD #DD8B34 #85DD34

monochromatic

#181681 #211EB5 #3734DD #6B68E6 #9E9DEF

Accessibility & contrast

On white

7.78

#3734DD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3734DD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3734DD

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3734DD	#FFFFFF	#000000	##FFFFFF
##3734DD	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AE2

Deuteranopia (green-blind)

#004ADA

Tritanopia (blue-blind)

#006787

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3734dd;
/* rgb */ color: rgb(55, 52, 221);
/* oklch */ color: oklch(46.3% 0.243 272.3);

Tailwind

colors: {
  custom: {
    50: '#896fe9',
    500: '#3734dd',
    950: '#000000',
  },
}

SCSS

$custom: #3734dd;
$custom-light: #896fe9;
$custom-dark: #000000;

JSON

{
  "hex": "#3734dd",
  "rgb": {
    "r": 55,
    "g": 52,
    "b": 221
  },
  "hsl": {
    "h": 241.065,
    "s": 71.308,
    "l": 53.529
  },
  "oklch": {
    "l": 0.46338,
    "c": 0.24349,
    "h": 272.3
  },
  "luminance": 0.08489
}

Semantic roles & 50–950 ramp

primary

#3734DD

secondary

#D9DB92

accent

#EE3AEB

background

#F9F6FE

surface

#F2ECFD

border

#CCC7D5

text

#0E0716

muted

#7E7A84

Preview Lab

Preview with #3734DD

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

Preview Lab → · Contrast checker → · Palette generator →