#3756C8#3756C8

#3756C8 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.9% C 0.181 H 267.7°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#3756C8
RGB	rgb(55, 86, 200)
HSL	hsl(227, 57%, 50%)
HSV	hsv(227, 73%, 78%)
CMYK	cmyk(72.5%, 57%, 0%, 21.6%)
CIE-LAB	lab(40.63, 28.03, -62.67)
CIE-LCH	lch(40.63, 68.65, 294.10°)
OKLab	oklab(49.88% -0.0072 -0.1807)
OKLCH	oklch(49.88% 0.181 267.7)
XYZ	xyz(15.3250, 11.6363, 56.0708)
Luminance	0.1164 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3756C8 #C8A937

analogous

#379FC8 #3756C8 #6037C8

triadic

#3756C8 #C83756 #56C837

tetradic

#3756C8 #C8379F #C8A937 #37C860

square

#3756C8 #C8379F #C8A937 #37C860

split-complementary

#3756C8 #C86037 #9FC837

monochromatic

#1D2D68 #2A4198 #3756C8 #677FD5 #97A7E2

Accessibility & contrast

On white

6.31

#3756C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#3756C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3756C8

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3756C8	#FFFFFF	#000000	##FFFFFF
##3756C8	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CC

Deuteranopia (green-blind)

#0059C6

Tritanopia (blue-blind)

#007286

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3756c8;
/* rgb */ color: rgb(55, 86, 200);
/* oklch */ color: oklch(49.9% 0.181 267.7);

Tailwind

colors: {
  custom: {
    50: '#8185da',
    500: '#3756c8',
    950: '#000000',
  },
}

SCSS

$custom: #3756c8;
$custom-light: #8185da;
$custom-dark: #000000;

JSON

{
  "hex": "#3756c8",
  "rgb": {
    "r": 55,
    "g": 86,
    "b": 200
  },
  "hsl": {
    "h": 227.172,
    "s": 56.863,
    "l": 50
  },
  "oklch": {
    "l": 0.49875,
    "c": 0.18084,
    "h": 267.7
  },
  "luminance": 0.11638
}

Semantic roles & 50–950 ramp

primary

#3756C8

secondary

#CEC08D

accent

#C048E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3756C8

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

Preview Lab → · Contrast checker → · Palette generator →