#3742C6#3742C6

#3742C6 is a mid, highly saturated blue. Relative luminance 0.088; OKLCH L 46.1% C 0.202 H 271.9°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#3742C6
RGB	rgb(55, 66, 198)
HSL	hsl(235, 57%, 50%)
HSV	hsv(235, 72%, 78%)
CMYK	cmyk(72.2%, 66.7%, 0%, 22.4%)
CIE-LAB	lab(35.57, 39.98, -69.78)
CIE-LCH	lch(35.57, 80.42, 299.81°)
OKLab	oklab(46.08% 0.0066 -0.2018)
OKLCH	oklch(46.08% 0.202 271.9)
XYZ	xyz(13.7134, 8.7845, 54.3880)
Luminance	0.0879 (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

#3742C6 #C6BB37

analogous

#3789C6 #3742C6 #7437C6

triadic

#3742C6 #C63742 #42C637

tetradic

#3742C6 #C63789 #C6BB37 #37C674

square

#3742C6 #C63789 #C6BB37 #37C674

split-complementary

#3742C6 #C67437 #89C637

monochromatic

#1C2266 #2A3296 #3742C6 #666ED4 #969CE2

Accessibility & contrast

On white

7.62

#3742C6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#3742C6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3742C6

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3742C6	#FFFFFF	#000000	##FFFFFF
##3742C6	1.00	7.62	2.76	7.62
#FFFFFF	7.62	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACA

Deuteranopia (green-blind)

#004DC4

Tritanopia (blue-blind)

#00657E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3742c6;
/* rgb */ color: rgb(55, 66, 198);
/* oklch */ color: oklch(46.1% 0.202 271.9);

Tailwind

colors: {
  custom: {
    50: '#8277d8',
    500: '#3742c6',
    950: '#000000',
  },
}

SCSS

$custom: #3742c6;
$custom-light: #8277d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3742c6",
  "rgb": {
    "r": 55,
    "g": 66,
    "b": 198
  },
  "hsl": {
    "h": 235.385,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.46082,
    "c": 0.20186,
    "h": 271.9
  },
  "luminance": 0.08786
}

Semantic roles & 50–950 ramp

primary

#3742C6

secondary

#CDC88C

accent

#D448E0

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3742C6

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

Preview Lab → · Contrast checker → · Palette generator →