#3765BC#3765BC

#3765BC is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.1% C 0.146 H 261.8°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#3765BC
RGB	rgb(55, 101, 188)
HSL	hsl(219, 55%, 48%)
HSV	hsv(219, 71%, 74%)
CMYK	cmyk(70.7%, 46.3%, 0%, 26.3%)
CIE-LAB	lab(43.87, 13.95, -50.47)
CIE-LCH	lch(43.87, 52.36, 285.45°)
OKLab	oklab(52.07% -0.021 -0.1446)
OKLCH	oklch(52.07% 0.146 261.8)
XYZ	xyz(15.3031, 13.7488, 49.4145)
Luminance	0.1375 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3765BC #BC8E37

analogous

#37A8BC #3765BC #4B37BC

triadic

#3765BC #BC3765 #65BC37

tetradic

#3765BC #BC37A8 #BC8E37 #37BC4B

square

#3765BC #BC37A8 #BC8E37 #37BC4B

split-complementary

#3765BC #BC4B37 #A8BC37

monochromatic

#1B325D #294C8D #3765BC #6087D0 #8FABDE

Accessibility & contrast

On white

5.60

#3765BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#3765BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3765BC

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3765BC	#FFFFFF	#000000	##FFFFFF
##3765BC	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386EBF

Deuteranopia (green-blind)

#1C62BA

Tritanopia (blue-blind)

#007987

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3765bc;
/* rgb */ color: rgb(55, 101, 188);
/* oklch */ color: oklch(52.1% 0.146 261.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3765bc",
  "rgb": {
    "r": 55,
    "g": 101,
    "b": 188
  },
  "hsl": {
    "h": 219.248,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.5207,
    "c": 0.14609,
    "h": 261.8
  },
  "luminance": 0.1375
}

Semantic roles & 50–950 ramp

primary

#3765BC

secondary

#C9B286

accent

#AB4ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3765BC

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

Preview Lab → · Contrast checker → · Palette generator →