#3756C4#3756C4

#3756C4 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.6% C 0.175 H 267.6°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#3756C4
RGB	rgb(55, 86, 196)
HSL	hsl(227, 56%, 49%)
HSV	hsv(227, 72%, 77%)
CMYK	cmyk(71.9%, 56.1%, 0%, 23.1%)
CIE-LAB	lab(40.33, 26.57, -60.84)
CIE-LCH	lch(40.33, 66.39, 293.60°)
OKLab	oklab(49.55% -0.0074 -0.1753)
OKLCH	oklch(49.55% 0.175 267.6)
XYZ	xyz(14.8637, 11.4518, 53.6409)
Luminance	0.1145 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3756C4 #C4A537

analogous

#379CC4 #3756C4 #5F37C4

triadic

#3756C4 #C43756 #56C437

tetradic

#3756C4 #C4379C #C4A537 #37C45F

square

#3756C4 #C4379C #C4A537 #37C45F

split-complementary

#3756C4 #C45F37 #9CC437

monochromatic

#1C2C64 #2A4194 #3756C4 #657DD4 #94A5E1

Accessibility & contrast

On white

6.38

#3756C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#3756C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3756C4

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3756C4	#FFFFFF	#000000	##FFFFFF
##3756C4	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066C8

Deuteranopia (green-blind)

#0059C2

Tritanopia (blue-blind)

#007184

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3756c4;
/* rgb */ color: rgb(55, 86, 196);
/* oklch */ color: oklch(49.6% 0.175 267.6);

Tailwind

colors: {
  custom: {
    50: '#8085d7',
    500: '#3756c4',
    950: '#000000',
  },
}

SCSS

$custom: #3756c4;
$custom-light: #8085d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3756c4",
  "rgb": {
    "r": 55,
    "g": 86,
    "b": 196
  },
  "hsl": {
    "h": 226.809,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.49554,
    "c": 0.17548,
    "h": 267.6
  },
  "luminance": 0.11453
}

Semantic roles & 50–950 ramp

primary

#3756C4

secondary

#CCBE8B

accent

#BE48DF

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3756C4

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

Preview Lab → · Contrast checker → · Palette generator →