#3748C6#3748C6

#3748C6 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 47.1% C 0.195 H 270.8°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#3748C6
RGB	rgb(55, 72, 198)
HSL	hsl(233, 57%, 50%)
HSV	hsv(233, 72%, 78%)
CMYK	cmyk(72.2%, 63.6%, 0%, 22.4%)
CIE-LAB	lab(36.97, 36.25, -67.48)
CIE-LCH	lch(36.97, 76.60, 298.25°)
OKLab	oklab(47.11% 0.0027 -0.195)
OKLCH	oklch(47.11% 0.195 270.8)
XYZ	xyz(14.0825, 9.5227, 54.5110)
Luminance	0.0952 (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

#3748C6 #C6B537

analogous

#3790C6 #3748C6 #6D37C6

triadic

#3748C6 #C63748 #48C637

tetradic

#3748C6 #C63790 #C6B537 #37C66D

square

#3748C6 #C63790 #C6B537 #37C66D

split-complementary

#3748C6 #C66D37 #90C637

monochromatic

#1C2566 #2A3796 #3748C6 #6673D4 #969FE2

Accessibility & contrast

On white

7.23

#3748C6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#3748C6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3748C6

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3748C6	#FFFFFF	#000000	##FFFFFF
##3748C6	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ECA

Deuteranopia (green-blind)

#0050C4

Tritanopia (blue-blind)

#006980

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3748c6;
/* rgb */ color: rgb(55, 72, 198);
/* oklch */ color: oklch(47.1% 0.195 270.8);

Tailwind

colors: {
  custom: {
    50: '#827bd8',
    500: '#3748c6',
    950: '#000000',
  },
}

SCSS

$custom: #3748c6;
$custom-light: #827bd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3748c6",
  "rgb": {
    "r": 55,
    "g": 72,
    "b": 198
  },
  "hsl": {
    "h": 232.867,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.47109,
    "c": 0.19499,
    "h": 270.8
  },
  "luminance": 0.09524
}

Semantic roles & 50–950 ramp

primary

#3748C6

secondary

#CDC58C

accent

#CE48E0

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3748C6

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

Preview Lab → · Contrast checker → · Palette generator →