#3750C3#3750C3

#3750C3 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.3% C 0.181 H 269.1°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#3750C3
RGB	rgb(55, 80, 195)
HSL	hsl(229, 56%, 49%)
HSV	hsv(229, 72%, 76%)
CMYK	cmyk(71.8%, 59%, 0%, 23.5%)
CIE-LAB	lab(38.70, 30.08, -62.90)
CIE-LCH	lch(38.70, 69.72, 295.56°)
OKLab	oklab(48.31% -0.0029 -0.1815)
OKLCH	oklch(48.31% 0.181 269.1)
XYZ	xyz(14.2911, 10.4882, 52.8904)
Luminance	0.1049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3750C3 #C3AA37

analogous

#3796C3 #3750C3 #6437C3

triadic

#3750C3 #C33750 #50C337

tetradic

#3750C3 #C33796 #C3AA37 #37C364

square

#3750C3 #C33796 #C3AA37 #37C364

split-complementary

#3750C3 #C36437 #96C337

monochromatic

#1C2964 #2A3C93 #3750C3 #6478D3 #94A1E1

Accessibility & contrast

On white

6.78

#3750C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#3750C3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3750C3

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3750C3	#FFFFFF	#000000	##FFFFFF
##3750C3	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C7

Deuteranopia (green-blind)

#0055C1

Tritanopia (blue-blind)

#006D82

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3750c3;
/* rgb */ color: rgb(55, 80, 195);
/* oklch */ color: oklch(48.3% 0.181 269.1);

Tailwind

colors: {
  custom: {
    50: '#8080d6',
    500: '#3750c3',
    950: '#000000',
  },
}

SCSS

$custom: #3750c3;
$custom-light: #8080d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3750c3",
  "rgb": {
    "r": 55,
    "g": 80,
    "b": 195
  },
  "hsl": {
    "h": 229.286,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.48314,
    "c": 0.18148,
    "h": 269.1
  },
  "luminance": 0.1049
}

Semantic roles & 50–950 ramp

primary

#3750C3

secondary

#CCC08A

accent

#C449DF

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3750C3

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

Preview Lab → · Contrast checker → · Palette generator →