#3756C0#3756C0

#3756C0 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.2% C 0.170 H 267.4°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#3756C0
RGB	rgb(55, 86, 192)
HSL	hsl(226, 55%, 48%)
HSV	hsv(226, 71%, 75%)
CMYK	cmyk(71.4%, 55.2%, 0%, 24.7%)
CIE-LAB	lab(40.03, 25.11, -58.99)
CIE-LCH	lch(40.03, 64.11, 293.06°)
OKLab	oklab(49.24% -0.0076 -0.1699)
OKLCH	oklch(49.24% 0.17 267.4)
XYZ	xyz(14.4145, 11.2721, 51.2750)
Luminance	0.1127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3756C0 #C0A137

analogous

#379AC0 #3756C0 #5C37C0

triadic

#3756C0 #C03756 #56C037

tetradic

#3756C0 #C0379A #C0A137 #37C05C

square

#3756C0 #C0379A #C0A137 #37C05C

split-complementary

#3756C0 #C05C37 #9AC037

monochromatic

#1C2B61 #294190 #3756C0 #627BD2 #92A3E0

Accessibility & contrast

On white

6.45

#3756C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#3756C0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3756C0

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3756C0	#FFFFFF	#000000	##FFFFFF
##3756C0	1.00	6.45	3.25	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C4

Deuteranopia (green-blind)

#0058BE

Tritanopia (blue-blind)

#007082

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3756c0;
/* rgb */ color: rgb(55, 86, 192);
/* oklch */ color: oklch(49.2% 0.170 267.4);

Tailwind

colors: {
  custom: {
    50: '#7f85d4',
    500: '#3756c0',
    950: '#000000',
  },
}

SCSS

$custom: #3756c0;
$custom-light: #7f85d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3756c0",
  "rgb": {
    "r": 55,
    "g": 86,
    "b": 192
  },
  "hsl": {
    "h": 226.423,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.49238,
    "c": 0.17006,
    "h": 267.4
  },
  "luminance": 0.11274
}

Semantic roles & 50–950 ramp

primary

#3756C0

secondary

#CBBC88

accent

#BD49DF

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3756C0

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

Preview Lab → · Contrast checker → · Palette generator →