#3742C5#3742C5

#3742C5 is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.0% C 0.201 H 271.9°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#3742C5
RGB	rgb(55, 66, 197)
HSL	hsl(235, 56%, 49%)
HSV	hsv(235, 72%, 77%)
CMYK	cmyk(72.1%, 66.5%, 0%, 22.7%)
CIE-LAB	lab(35.48, 39.63, -69.35)
CIE-LCH	lch(35.48, 79.87, 299.75°)
OKLab	oklab(45.99% 0.0066 -0.2005)
OKLCH	oklch(45.99% 0.201 271.9)
XYZ	xyz(13.5984, 8.7385, 53.7825)
Luminance	0.0874 (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

#3742C5 #C5BA37

analogous

#3789C5 #3742C5 #7337C5

triadic

#3742C5 #C53742 #42C537

tetradic

#3742C5 #C53789 #C5BA37 #37C573

square

#3742C5 #C53789 #C5BA37 #37C573

split-complementary

#3742C5 #C57337 #89C537

monochromatic

#1C2265 #2A3295 #3742C5 #656ED4 #959BE1

Accessibility & contrast

On white

7.64

#3742C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#3742C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3742C5

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3742C5	#FFFFFF	#000000	##FFFFFF
##3742C5	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC9

Deuteranopia (green-blind)

#004DC3

Tritanopia (blue-blind)

#00657E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3742c5;
/* rgb */ color: rgb(55, 66, 197);
/* oklch */ color: oklch(46.0% 0.201 271.9);

Tailwind

colors: {
  custom: {
    50: '#8277d8',
    500: '#3742c5',
    950: '#000000',
  },
}

SCSS

$custom: #3742c5;
$custom-light: #8277d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3742c5",
  "rgb": {
    "r": 55,
    "g": 66,
    "b": 197
  },
  "hsl": {
    "h": 235.352,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45988,
    "c": 0.20059,
    "h": 271.9
  },
  "luminance": 0.0874
}

Semantic roles & 50–950 ramp

primary

#3742C5

secondary

#CDC88B

accent

#D448E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3742C5

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

Preview Lab → · Contrast checker → · Palette generator →