#3734CF#3734CF

#3734CF is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.9% C 0.227 H 273.2°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#3734CF
RGB	rgb(55, 52, 207)
HSL	hsl(241, 62%, 51%)
HSV	hsv(241, 75%, 81%)
CMYK	cmyk(73.4%, 74.9%, 0%, 18.8%)
CIE-LAB	lab(33.50, 51.07, -78.42)
CIE-LCH	lch(33.50, 93.58, 303.08°)
OKLab	oklab(44.86% 0.0126 -0.2269)
OKLCH	oklch(44.86% 0.227 273.2)
XYZ	xyz(14.0623, 7.7718, 59.7784)
Luminance	0.0777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.48

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3734CF #CCCF34

analogous

#347ECF #3734CF #8434CF

triadic

#3734CF #CF3734 #34CF37

tetradic

#3734CF #CF347E #CCCF34 #34CF84

square

#3734CF #CF347E #CCCF34 #34CF84

split-complementary

#3734CF #CF8434 #7ECF34

monochromatic

#1C1A6E #2826A0 #3734CF #6865DB #9997E6

Accessibility & contrast

On white

8.22

#3734CF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#3734CF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3734CF

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3734CF	#FFFFFF	#000000	##FFFFFF
##3734CF	1.00	8.22	2.55	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056D3

Deuteranopia (green-blind)

#0047CC

Tritanopia (blue-blind)

#00627F

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3734cf;
/* rgb */ color: rgb(55, 52, 207);
/* oklch */ color: oklch(44.9% 0.227 273.2);

Tailwind

colors: {
  custom: {
    50: '#856edf',
    500: '#3734cf',
    950: '#000000',
  },
}

SCSS

$custom: #3734cf;
$custom-light: #856edf;
$custom-dark: #000000;

JSON

{
  "hex": "#3734cf",
  "rgb": {
    "r": 55,
    "g": 52,
    "b": 207
  },
  "hsl": {
    "h": 241.161,
    "s": 61.753,
    "l": 50.784
  },
  "oklch": {
    "l": 0.44864,
    "c": 0.22725,
    "h": 273.2
  },
  "luminance": 0.07773
}

Semantic roles & 50–950 ramp

primary

#3734CF

secondary

#D0D28D

accent

#E543E2

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3734CF

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

Preview Lab → · Contrast checker → · Palette generator →