#3750C0#3750C0

#3750C0 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.1% C 0.177 H 269.1°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#3750C0
RGB	rgb(55, 80, 192)
HSL	hsl(229, 55%, 48%)
HSV	hsv(229, 71%, 75%)
CMYK	cmyk(71.4%, 58.3%, 0%, 24.7%)
CIE-LAB	lab(38.47, 28.99, -61.53)
CIE-LCH	lch(38.47, 68.02, 295.23°)
OKLab	oklab(48.07% -0.0029 -0.1774)
OKLCH	oklch(48.07% 0.177 269.1)
XYZ	xyz(13.9554, 10.3539, 51.1220)
Luminance	0.1036 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3750C0 #C0A737

analogous

#3794C0 #3750C0 #6237C0

triadic

#3750C0 #C03750 #50C037

tetradic

#3750C0 #C03794 #C0A737 #37C062

square

#3750C0 #C03794 #C0A737 #37C062

split-complementary

#3750C0 #C06237 #94C037

monochromatic

#1C2861 #293C90 #3750C0 #6277D2 #92A0E0

Accessibility & contrast

On white

6.84

#3750C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3750C0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3750C0

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3750C0	#FFFFFF	#000000	##FFFFFF
##3750C0	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C4

Deuteranopia (green-blind)

#0054BE

Tritanopia (blue-blind)

#006C80

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3750c0;
/* rgb */ color: rgb(55, 80, 192);
/* oklch */ color: oklch(48.1% 0.177 269.1);

Tailwind

colors: {
  custom: {
    50: '#8080d4',
    500: '#3750c0',
    950: '#000000',
  },
}

SCSS

$custom: #3750c0;
$custom-light: #8080d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3750c0",
  "rgb": {
    "r": 55,
    "g": 80,
    "b": 192
  },
  "hsl": {
    "h": 229.051,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.48066,
    "c": 0.17747,
    "h": 269.1
  },
  "luminance": 0.10355
}

Semantic roles & 50–950 ramp

primary

#3750C0

secondary

#CBBF88

accent

#C349DF

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3750C0

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

Preview Lab → · Contrast checker → · Palette generator →