#3751C3#3751C3

#3751C3 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.5% C 0.180 H 268.9°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#3751C3
RGB	rgb(55, 81, 195)
HSL	hsl(229, 56%, 49%)
HSV	hsv(229, 72%, 76%)
CMYK	cmyk(71.8%, 58.5%, 0%, 23.5%)
CIE-LAB	lab(38.96, 29.44, -62.48)
CIE-LCH	lch(38.96, 69.07, 295.23°)
OKLab	oklab(48.5% -0.0036 -0.1802)
OKLCH	oklch(48.5% 0.18 268.9)
XYZ	xyz(14.3649, 10.6357, 52.9150)
Luminance	0.1064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3751C3 #C3A937

analogous

#3797C3 #3751C3 #6337C3

triadic

#3751C3 #C33751 #51C337

tetradic

#3751C3 #C33797 #C3A937 #37C363

square

#3751C3 #C33797 #C3A937 #37C363

split-complementary

#3751C3 #C36337 #97C337

monochromatic

#1C2964 #2A3D93 #3751C3 #6479D3 #94A2E1

Accessibility & contrast

On white

6.71

#3751C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#3751C3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3751C3

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3751C3	#FFFFFF	#000000	##FFFFFF
##3751C3	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C7

Deuteranopia (green-blind)

#0055C1

Tritanopia (blue-blind)

#006D82

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3751c3;
/* rgb */ color: rgb(55, 81, 195);
/* oklch */ color: oklch(48.5% 0.180 268.9);

Tailwind

colors: {
  custom: {
    50: '#8081d6',
    500: '#3751c3',
    950: '#000000',
  },
}

SCSS

$custom: #3751c3;
$custom-light: #8081d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3751c3",
  "rgb": {
    "r": 55,
    "g": 81,
    "b": 195
  },
  "hsl": {
    "h": 228.857,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.48504,
    "c": 0.18027,
    "h": 268.9
  },
  "luminance": 0.10637
}

Semantic roles & 50–950 ramp

primary

#3751C3

secondary

#CCC08A

accent

#C349DF

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3751C3

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

Preview Lab → · Contrast checker → · Palette generator →