#3749C6#3749C6

#3749C6 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 47.3% C 0.194 H 270.6°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#3749C6
RGB	rgb(55, 73, 198)
HSL	hsl(232, 57%, 50%)
HSV	hsv(232, 72%, 78%)
CMYK	cmyk(72.2%, 63.1%, 0%, 22.4%)
CIE-LAB	lab(37.21, 35.62, -67.08)
CIE-LCH	lch(37.21, 75.95, 297.97°)
OKLab	oklab(47.29% 0.0021 -0.1938)
OKLCH	oklch(47.29% 0.194 270.6)
XYZ	xyz(14.1477, 9.6531, 54.5328)
Luminance	0.0965 (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

#3749C6 #C6B437

analogous

#3790C6 #3749C6 #6D37C6

triadic

#3749C6 #C63749 #49C637

tetradic

#3749C6 #C63790 #C6B437 #37C66D

square

#3749C6 #C63790 #C6B437 #37C66D

split-complementary

#3749C6 #C66D37 #90C637

monochromatic

#1C2666 #2A3796 #3749C6 #6674D4 #969FE2

Accessibility & contrast

On white

7.16

#3749C6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#3749C6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3749C6

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3749C6	#FFFFFF	#000000	##FFFFFF
##3749C6	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ECA

Deuteranopia (green-blind)

#0051C4

Tritanopia (blue-blind)

#006981

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3749c6;
/* rgb */ color: rgb(55, 73, 198);
/* oklch */ color: oklch(47.3% 0.194 270.6);

Tailwind

colors: {
  custom: {
    50: '#827bd8',
    500: '#3749c6',
    950: '#000000',
  },
}

SCSS

$custom: #3749c6;
$custom-light: #827bd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3749c6",
  "rgb": {
    "r": 55,
    "g": 73,
    "b": 198
  },
  "hsl": {
    "h": 232.448,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.47286,
    "c": 0.19382,
    "h": 270.6
  },
  "luminance": 0.09655
}

Semantic roles & 50–950 ramp

primary

#3749C6

secondary

#CDC58C

accent

#CD48E0

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3749C6

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

Preview Lab → · Contrast checker → · Palette generator →