#3765BD#3765BD

#3765BD is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.1% C 0.147 H 261.9°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#3765BD
RGB	rgb(55, 101, 189)
HSL	hsl(219, 55%, 48%)
HSV	hsv(219, 71%, 74%)
CMYK	cmyk(70.9%, 46.6%, 0%, 25.9%)
CIE-LAB	lab(43.93, 14.32, -50.95)
CIE-LCH	lch(43.93, 52.92, 285.69°)
OKLab	oklab(52.14% -0.0208 -0.146)
OKLCH	oklch(52.14% 0.147 261.9)
XYZ	xyz(15.4113, 13.7921, 49.9842)
Luminance	0.1379 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3765BD #BD8F37

analogous

#37A8BD #3765BD #4C37BD

triadic

#3765BD #BD3765 #65BD37

tetradic

#3765BD #BD37A8 #BD8F37 #37BD4C

square

#3765BD #BD37A8 #BD8F37 #37BD4C

split-complementary

#3765BD #BD4C37 #A8BD37

monochromatic

#1B325E #294C8E #3765BD #6087D1 #90ABDF

Accessibility & contrast

On white

5.59

#3765BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#3765BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3765BD

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3765BD	#FFFFFF	#000000	##FFFFFF
##3765BD	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#376EC0

Deuteranopia (green-blind)

#1A62BB

Tritanopia (blue-blind)

#007A88

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3765bd;
/* rgb */ color: rgb(55, 101, 189);
/* oklch */ color: oklch(52.1% 0.147 261.9);

Tailwind

colors: {
  custom: {
    50: '#7e90d1',
    500: '#3765bd',
    950: '#000000',
  },
}

SCSS

$custom: #3765bd;
$custom-light: #7e90d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3765bd",
  "rgb": {
    "r": 55,
    "g": 101,
    "b": 189
  },
  "hsl": {
    "h": 219.403,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.52138,
    "c": 0.14746,
    "h": 261.9
  },
  "luminance": 0.13794
}

Semantic roles & 50–950 ramp

primary

#3765BD

secondary

#C9B286

accent

#AB4ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3765BD

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

Preview Lab → · Contrast checker → · Palette generator →