#3734C7#3734C7

#3734C7 is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 44.0% C 0.218 H 273.7°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#3734C7
RGB	rgb(55, 52, 199)
HSL	hsl(241, 59%, 49%)
HSV	hsv(241, 74%, 78%)
CMYK	cmyk(72.4%, 73.9%, 0%, 22%)
CIE-LAB	lab(32.68, 48.51, -75.12)
CIE-LCH	lch(32.68, 89.42, 302.85°)
OKLab	oklab(44.04% 0.0141 -0.2173)
OKLCH	oklch(44.04% 0.218 273.7)
XYZ	xyz(13.1089, 7.3904, 54.7574)
Luminance	0.0739 (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

#3734C7 #C4C734

analogous

#347BC7 #3734C7 #8034C7

triadic

#3734C7 #C73734 #34C737

tetradic

#3734C7 #C7347B #C4C734 #34C780

square

#3734C7 #C7347B #C4C734 #34C780

split-complementary

#3734C7 #C78034 #7BC734

monochromatic

#1C1B66 #2A2796 #3734C7 #6562D6 #9493E3

Accessibility & contrast

On white

8.47

#3734C7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#3734C7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3734C7

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3734C7	#FFFFFF	#000000	##FFFFFF
##3734C7	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054CB

Deuteranopia (green-blind)

#0046C4

Tritanopia (blue-blind)

#005F7B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3734c7;
/* rgb */ color: rgb(55, 52, 199);
/* oklch */ color: oklch(44.0% 0.218 273.7);

Tailwind

colors: {
  custom: {
    50: '#846dd9',
    500: '#3734c7',
    950: '#000000',
  },
}

SCSS

$custom: #3734c7;
$custom-light: #846dd9;
$custom-dark: #000000;

JSON

{
  "hex": "#3734c7",
  "rgb": {
    "r": 55,
    "g": 52,
    "b": 199
  },
  "hsl": {
    "h": 241.224,
    "s": 58.566,
    "l": 49.216
  },
  "oklch": {
    "l": 0.44037,
    "c": 0.21776,
    "h": 273.7
  },
  "luminance": 0.07392
}

Semantic roles & 50–950 ramp

primary

#3734C7

secondary

#CCCE89

accent

#E246DF

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0D0715

muted

#7D7A83

Preview Lab

Preview with #3734C7

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

Preview Lab → · Contrast checker → · Palette generator →