#3751C2#3751C2

#3751C2 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.4% C 0.179 H 268.8°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#3751C2
RGB	rgb(55, 81, 194)
HSL	hsl(229, 56%, 49%)
HSV	hsv(229, 72%, 76%)
CMYK	cmyk(71.6%, 58.2%, 0%, 23.9%)
CIE-LAB	lab(38.88, 29.07, -62.03)
CIE-LCH	lch(38.88, 68.50, 295.11°)
OKLab	oklab(48.42% -0.0036 -0.1789)
OKLCH	oklch(48.42% 0.179 268.8)
XYZ	xyz(14.2522, 10.5907, 52.3216)
Luminance	0.1059 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3751C2 #C2A837

analogous

#3797C2 #3751C2 #6337C2

triadic

#3751C2 #C23751 #51C237

tetradic

#3751C2 #C23797 #C2A837 #37C263

square

#3751C2 #C23797 #C2A837 #37C263

split-complementary

#3751C2 #C26337 #97C237

monochromatic

#1C2963 #293D92 #3751C2 #6378D3 #93A1E0

Accessibility & contrast

On white

6.73

#3751C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3751C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3751C2

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3751C2	#FFFFFF	#000000	##FFFFFF
##3751C2	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C6

Deuteranopia (green-blind)

#0055C0

Tritanopia (blue-blind)

#006D81

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3751c2;
/* rgb */ color: rgb(55, 81, 194);
/* oklch */ color: oklch(48.4% 0.179 268.8);

Tailwind

colors: {
  custom: {
    50: '#8081d5',
    500: '#3751c2',
    950: '#000000',
  },
}

SCSS

$custom: #3751c2;
$custom-light: #8081d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3751c2",
  "rgb": {
    "r": 55,
    "g": 81,
    "b": 194
  },
  "hsl": {
    "h": 228.777,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.48422,
    "c": 0.17893,
    "h": 268.8
  },
  "luminance": 0.10592
}

Semantic roles & 50–950 ramp

primary

#3751C2

secondary

#CBBF89

accent

#C349DF

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3751C2

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

Preview Lab → · Contrast checker → · Palette generator →