#3743C5#3743C5

#3743C5 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 46.2% C 0.199 H 271.7°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#3743C5
RGB	rgb(55, 67, 197)
HSL	hsl(235, 56%, 49%)
HSV	hsv(235, 72%, 77%)
CMYK	cmyk(72.1%, 66%, 0%, 22.7%)
CIE-LAB	lab(35.71, 39.01, -68.97)
CIE-LCH	lch(35.71, 79.24, 299.50°)
OKLab	oklab(46.16% 0.006 -0.1994)
OKLCH	oklch(46.16% 0.199 271.7)
XYZ	xyz(13.6573, 8.8564, 53.8022)
Luminance	0.0886 (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

#3743C5 #C5B937

analogous

#378AC5 #3743C5 #7237C5

triadic

#3743C5 #C53743 #43C537

tetradic

#3743C5 #C5378A #C5B937 #37C572

square

#3743C5 #C5378A #C5B937 #37C572

split-complementary

#3743C5 #C57237 #8AC537

monochromatic

#1C2265 #2A3395 #3743C5 #656FD4 #959BE1

Accessibility & contrast

On white

7.58

#3743C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#3743C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3743C5

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3743C5	#FFFFFF	#000000	##FFFFFF
##3743C5	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC9

Deuteranopia (green-blind)

#004DC3

Tritanopia (blue-blind)

#00667E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3743c5;
/* rgb */ color: rgb(55, 67, 197);
/* oklch */ color: oklch(46.2% 0.199 271.7);

Tailwind

colors: {
  custom: {
    50: '#8277d8',
    500: '#3743c5',
    950: '#000000',
  },
}

SCSS

$custom: #3743c5;
$custom-light: #8277d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3743c5",
  "rgb": {
    "r": 55,
    "g": 67,
    "b": 197
  },
  "hsl": {
    "h": 234.93,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.46156,
    "c": 0.19946,
    "h": 271.7
  },
  "luminance": 0.08858
}

Semantic roles & 50–950 ramp

primary

#3743C5

secondary

#CDC78B

accent

#D348E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3743C5

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

Preview Lab → · Contrast checker → · Palette generator →