#3743C4#3743C4

#3743C4 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 46.1% C 0.198 H 271.8°. Best body text is #FFFFFF at 7.60:1 contrast (WCAG AA passes).

Color values

HEX	#3743C4
RGB	rgb(55, 67, 196)
HSL	hsl(235, 56%, 49%)
HSV	hsv(235, 72%, 77%)
CMYK	cmyk(71.9%, 65.8%, 0%, 23.1%)
CIE-LAB	lab(35.62, 38.67, -68.53)
CIE-LCH	lch(35.62, 78.69, 299.43°)
OKLab	oklab(46.06% 0.0061 -0.1981)
OKLCH	oklch(46.06% 0.198 271.8)
XYZ	xyz(13.5431, 8.8107, 53.2007)
Luminance	0.0881 (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

#3743C4 #C4B837

analogous

#3789C4 #3743C4 #7237C4

triadic

#3743C4 #C43743 #43C437

tetradic

#3743C4 #C43789 #C4B837 #37C472

square

#3743C4 #C43789 #C4B837 #37C472

split-complementary

#3743C4 #C47237 #89C437

monochromatic

#1C2264 #2A3394 #3743C4 #656ED4 #949BE1

Accessibility & contrast

On white

7.60

#3743C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#3743C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3743C4

7.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3743C4	#FFFFFF	#000000	##FFFFFF
##3743C4	1.00	7.60	2.76	7.60
#FFFFFF	7.60	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC8

Deuteranopia (green-blind)

#004DC2

Tritanopia (blue-blind)

#00657D

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3743c4;
/* rgb */ color: rgb(55, 67, 196);
/* oklch */ color: oklch(46.1% 0.198 271.8);

Tailwind

colors: {
  custom: {
    50: '#8277d7',
    500: '#3743c4',
    950: '#000000',
  },
}

SCSS

$custom: #3743c4;
$custom-light: #8277d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3743c4",
  "rgb": {
    "r": 55,
    "g": 67,
    "b": 196
  },
  "hsl": {
    "h": 234.894,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.46064,
    "c": 0.19818,
    "h": 271.8
  },
  "luminance": 0.08812
}

Semantic roles & 50–950 ramp

primary

#3743C4

secondary

#CCC78B

accent

#D348DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3743C4

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

Preview Lab → · Contrast checker → · Palette generator →