#3742C2#3742C2

#3742C2 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.7% C 0.197 H 272.0°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#3742C2
RGB	rgb(55, 66, 194)
HSL	hsl(235, 56%, 49%)
HSV	hsv(235, 72%, 76%)
CMYK	cmyk(71.6%, 66%, 0%, 23.9%)
CIE-LAB	lab(35.21, 38.59, -68.03)
CIE-LCH	lch(35.21, 78.21, 299.56°)
OKLab	oklab(45.71% 0.0069 -0.1966)
OKLCH	oklch(45.71% 0.197 272)
XYZ	xyz(13.2581, 8.6024, 51.9902)
Luminance	0.0860 (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

#3742C2 #C2B737

analogous

#3788C2 #3742C2 #7237C2

triadic

#3742C2 #C23742 #42C237

tetradic

#3742C2 #C23788 #C2B737 #37C272

square

#3742C2 #C23788 #C2B737 #37C272

split-complementary

#3742C2 #C27237 #88C237

monochromatic

#1C2263 #293292 #3742C2 #636CD3 #9399E0

Accessibility & contrast

On white

7.72

#3742C2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3742C2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3742C2

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3742C2	#FFFFFF	#000000	##FFFFFF
##3742C2	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C6

Deuteranopia (green-blind)

#004CC0

Tritanopia (blue-blind)

#00647C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3742c2;
/* rgb */ color: rgb(55, 66, 194);
/* oklch */ color: oklch(45.7% 0.197 272.0);

Tailwind

colors: {
  custom: {
    50: '#8176d6',
    500: '#3742c2',
    950: '#000000',
  },
}

SCSS

$custom: #3742c2;
$custom-light: #8176d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3742c2",
  "rgb": {
    "r": 55,
    "g": 66,
    "b": 194
  },
  "hsl": {
    "h": 235.252,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.45711,
    "c": 0.19676,
    "h": 272
  },
  "luminance": 0.08604
}

Semantic roles & 50–950 ramp

primary

#3742C2

secondary

#CBC689

accent

#D349DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3742C2

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

Preview Lab → · Contrast checker → · Palette generator →