#3750C4#3750C4

#3750C4 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.4% C 0.183 H 269.1°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#3750C4
RGB	rgb(55, 80, 196)
HSL	hsl(229, 56%, 49%)
HSV	hsv(229, 72%, 77%)
CMYK	cmyk(71.9%, 59.2%, 0%, 23.1%)
CIE-LAB	lab(38.78, 30.44, -63.35)
CIE-LCH	lch(38.78, 70.29, 295.66°)
OKLab	oklab(48.4% -0.0028 -0.1828)
OKLCH	oklch(48.4% 0.183 269.1)
XYZ	xyz(14.4046, 10.5336, 53.4879)
Luminance	0.1053 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3750C4 #C4AB37

analogous

#3797C4 #3750C4 #6537C4

triadic

#3750C4 #C43750 #50C437

tetradic

#3750C4 #C43797 #C4AB37 #37C465

square

#3750C4 #C43797 #C4AB37 #37C465

split-complementary

#3750C4 #C46537 #97C437

monochromatic

#1C2964 #2A3C94 #3750C4 #6578D4 #94A2E1

Accessibility & contrast

On white

6.76

#3750C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3750C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3750C4

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3750C4	#FFFFFF	#000000	##FFFFFF
##3750C4	1.00	6.76	3.11	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C8

Deuteranopia (green-blind)

#0055C2

Tritanopia (blue-blind)

#006D82

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3750c4;
/* rgb */ color: rgb(55, 80, 196);
/* oklch */ color: oklch(48.4% 0.183 269.1);

Tailwind

colors: {
  custom: {
    50: '#8180d7',
    500: '#3750c4',
    950: '#000000',
  },
}

SCSS

$custom: #3750c4;
$custom-light: #8180d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3750c4",
  "rgb": {
    "r": 55,
    "g": 80,
    "b": 196
  },
  "hsl": {
    "h": 229.362,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.48397,
    "c": 0.18282,
    "h": 269.1
  },
  "luminance": 0.10535
}

Semantic roles & 50–950 ramp

primary

#3750C4

secondary

#CCC18B

accent

#C548DF

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3750C4

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

Preview Lab → · Contrast checker → · Palette generator →