#3743CD#3743CD

#3743CD is a mid, highly saturated blue. Relative luminance 0.092; OKLCH L 46.9% C 0.210 H 271.4°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#3743CD
RGB	rgb(55, 67, 205)
HSL	hsl(235, 60%, 51%)
HSV	hsv(235, 73%, 80%)
CMYK	cmyk(73.2%, 67.3%, 0%, 19.6%)
CIE-LAB	lab(36.43, 41.78, -72.44)
CIE-LCH	lch(36.43, 83.62, 299.98°)
OKLab	oklab(46.9% 0.0053 -0.2095)
OKLCH	oklch(46.9% 0.21 271.4)
XYZ	xyz(14.5984, 9.2328, 58.7585)
Luminance	0.0923 (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

#3743CD #CDC137

analogous

#378ECD #3743CD #7637CD

triadic

#3743CD #CD3743 #43CD37

tetradic

#3743CD #CD378E #CDC137 #37CD76

square

#3743CD #CD378E #CDC137 #37CD76

split-complementary

#3743CD #CD7637 #8ECD37

monochromatic

#1C226E #28319F #3743CD #6871D9 #999FE5

Accessibility & contrast

On white

7.38

#3743CD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#3743CD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3743CD

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3743CD	#FFFFFF	#000000	##FFFFFF
##3743CD	1.00	7.38	2.85	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD1

Deuteranopia (green-blind)

#004FCA

Tritanopia (blue-blind)

#006882

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3743cd;
/* rgb */ color: rgb(55, 67, 205);
/* oklch */ color: oklch(46.9% 0.210 271.4);

Tailwind

colors: {
  custom: {
    50: '#8477dd',
    500: '#3743cd',
    950: '#000000',
  },
}

SCSS

$custom: #3743cd;
$custom-light: #8477dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3743cd",
  "rgb": {
    "r": 55,
    "g": 67,
    "b": 205
  },
  "hsl": {
    "h": 235.2,
    "s": 60,
    "l": 50.98
  },
  "oklch": {
    "l": 0.46902,
    "c": 0.20958,
    "h": 271.4
  },
  "luminance": 0.09234
}

Semantic roles & 50–950 ramp

primary

#3743CD

secondary

#D1CC8F

accent

#D645E3

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #3743CD

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

Preview Lab → · Contrast checker → · Palette generator →