#3734B2#3734B2

#3734B2 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.9% C 0.192 H 275.3°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#3734B2
RGB	rgb(55, 52, 178)
HSL	hsl(241, 55%, 45%)
HSV	hsv(241, 71%, 70%)
CMYK	cmyk(69.1%, 70.8%, 0%, 30.2%)
CIE-LAB	lab(30.60, 41.60, -66.16)
CIE-LCH	lch(30.60, 78.15, 302.16°)
OKLab	oklab(41.93% 0.0177 -0.1912)
OKLCH	oklch(41.93% 0.192 275.3)
XYZ	xyz(10.8368, 6.4816, 42.7908)
Luminance	0.0648 (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

#3734B2 #AFB234

analogous

#3470B2 #3734B2 #7634B2

triadic

#3734B2 #B23734 #34B237

tetradic

#3734B2 #B23470 #AFB234 #34B276

square

#3734B2 #B23470 #AFB234 #34B276

split-complementary

#3734B2 #B27634 #70B234

monochromatic

#1A1853 #282683 #3734B2 #5956CE #8785DB

Accessibility & contrast

On white

9.14

#3734B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#3734B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3734B2

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3734B2	#FFFFFF	#000000	##FFFFFF
##3734B2	1.00	9.14	2.30	9.14
#FFFFFF	9.14	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB6

Deuteranopia (green-blind)

#0042B0

Tritanopia (blue-blind)

#00576F

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3734b2;
/* rgb */ color: rgb(55, 52, 178);
/* oklch */ color: oklch(41.9% 0.192 275.3);

Tailwind

colors: {
  custom: {
    50: '#7f6dca',
    500: '#3734b2',
    950: '#000000',
  },
}

SCSS

$custom: #3734b2;
$custom-light: #7f6dca;
$custom-dark: #000000;

JSON

{
  "hex": "#3734b2",
  "rgb": {
    "r": 55,
    "g": 52,
    "b": 178
  },
  "hsl": {
    "h": 241.429,
    "s": 54.783,
    "l": 45.098
  },
  "oklch": {
    "l": 0.41926,
    "c": 0.19199,
    "h": 275.3
  },
  "luminance": 0.06483
}

Semantic roles & 50–950 ramp

primary

#3734B2

secondary

#C3C57D

accent

#DE4ADB

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3734B2

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

Preview Lab → · Contrast checker → · Palette generator →