#3734AB#3734AB

#3734AB is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.2% C 0.183 H 275.9°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#3734AB
RGB	rgb(55, 52, 171)
HSL	hsl(242, 53%, 44%)
HSV	hsv(242, 70%, 67%)
CMYK	cmyk(67.8%, 69.6%, 0%, 32.9%)
CIE-LAB	lab(29.93, 39.26, -63.07)
CIE-LCH	lch(29.93, 74.29, 301.90°)
OKLab	oklab(41.25% 0.0187 -0.1821)
OKLCH	oklch(41.25% 0.183 275.9)
XYZ	xyz(10.1518, 6.2076, 39.1834)
Luminance	0.0621 (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

#3734AB #A8AB34

analogous

#346CAB #3734AB #7234AB

triadic

#3734AB #AB3734 #34AB37

tetradic

#3734AB #AB346C #A8AB34 #34AB72

square

#3734AB #AB346C #A8AB34 #34AB72

split-complementary

#3734AB #AB7234 #6CAB34

monochromatic

#19174D #28267C #3734AB #5552CA #8381D9

Accessibility & contrast

On white

9.37

#3734AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#3734AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3734AB

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3734AB	#FFFFFF	#000000	##FFFFFF
##3734AB	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CAF

Deuteranopia (green-blind)

#0041A9

Tritanopia (blue-blind)

#00546B

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3734ab;
/* rgb */ color: rgb(55, 52, 171);
/* oklch */ color: oklch(41.2% 0.183 275.9);

Tailwind

colors: {
  custom: {
    50: '#7d6cc5',
    500: '#3734ab',
    950: '#000000',
  },
}

SCSS

$custom: #3734ab;
$custom-light: #7d6cc5;
$custom-dark: #000000;

JSON

{
  "hex": "#3734ab",
  "rgb": {
    "r": 55,
    "g": 52,
    "b": 171
  },
  "hsl": {
    "h": 241.513,
    "s": 53.363,
    "l": 43.725
  },
  "oklch": {
    "l": 0.41245,
    "c": 0.1831,
    "h": 275.9
  },
  "luminance": 0.06208
}

Semantic roles & 50–950 ramp

primary

#3734AB

secondary

#C0C279

accent

#DD4BD9

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3734AB

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

Preview Lab → · Contrast checker → · Palette generator →