#3734BF#3734BF

#3734BF is a dark, highly saturated blue. Relative luminance 0.070; OKLCH L 43.2% C 0.208 H 274.3°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#3734BF
RGB	rgb(55, 52, 191)
HSL	hsl(241, 57%, 48%)
HSV	hsv(241, 73%, 75%)
CMYK	cmyk(71.2%, 72.8%, 0%, 25.1%)
CIE-LAB	lab(31.87, 45.90, -71.76)
CIE-LCH	lch(31.87, 85.18, 302.61°)
OKLab	oklab(43.22% 0.0155 -0.2075)
OKLCH	oklch(43.22% 0.208 274.3)
XYZ	xyz(12.2044, 7.0286, 49.9936)
Luminance	0.0703 (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

#3734BF #BCBF34

analogous

#3476BF #3734BF #7C34BF

triadic

#3734BF #BF3734 #34BF37

tetradic

#3734BF #BF3476 #BCBF34 #34BF7C

square

#3734BF #BF3476 #BCBF34 #34BF7C

split-complementary

#3734BF #BF7C34 #76BF34

monochromatic

#1B1A5F #29278F #3734BF #605DD3 #8F8DE0

Accessibility & contrast

On white

8.73

#3734BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3734BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3734BF

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3734BF	#FFFFFF	#000000	##FFFFFF
##3734BF	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C3

Deuteranopia (green-blind)

#0044BC

Tritanopia (blue-blind)

#005C76

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3734bf;
/* rgb */ color: rgb(55, 52, 191);
/* oklch */ color: oklch(43.2% 0.208 274.3);

Tailwind

colors: {
  custom: {
    50: '#826dd4',
    500: '#3734bf',
    950: '#000000',
  },
}

SCSS

$custom: #3734bf;
$custom-light: #826dd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3734bf",
  "rgb": {
    "r": 55,
    "g": 52,
    "b": 191
  },
  "hsl": {
    "h": 241.295,
    "s": 57.202,
    "l": 47.647
  },
  "oklch": {
    "l": 0.43221,
    "c": 0.20809,
    "h": 274.3
  },
  "luminance": 0.0703
}

Semantic roles & 50–950 ramp

primary

#3734BF

secondary

#C9CA84

accent

#E047DD

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3734BF

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

Preview Lab → · Contrast checker → · Palette generator →