#3565BB#3565BB

#3565BB is a mid, vivid blue. Relative luminance 0.137; OKLCH L 51.9% C 0.145 H 261.0°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#3565BB
RGB	rgb(53, 101, 187)
HSL	hsl(219, 56%, 47%)
HSV	hsv(219, 72%, 73%)
CMYK	cmyk(71.7%, 46%, 0%, 26.7%)
CIE-LAB	lab(43.73, 13.28, -50.12)
CIE-LCH	lch(43.73, 51.85, 284.84°)
OKLab	oklab(51.92% -0.0227 -0.1436)
OKLCH	oklch(51.92% 0.145 261)
XYZ	xyz(15.0883, 13.6505, 48.8437)
Luminance	0.1365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3565BB #BB8B35

analogous

#35A8BB #3565BB #4835BB

triadic

#3565BB #BB3565 #65BB35

tetradic

#3565BB #BB35A8 #BB8B35 #35BB48

square

#3565BB #BB35A8 #BB8B35 #35BB48

split-complementary

#3565BB #BB4835 #A8BB35

monochromatic

#1A315C #274B8B #3565BB #5C86D1 #8CAADE

Accessibility & contrast

On white

5.63

#3565BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#3565BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3565BB

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3565BB	#FFFFFF	#000000	##FFFFFF
##3565BB	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#396EBE

Deuteranopia (green-blind)

#1C62B9

Tritanopia (blue-blind)

#007987

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3565bb;
/* rgb */ color: rgb(53, 101, 187);
/* oklch */ color: oklch(51.9% 0.145 261.0);

Tailwind

colors: {
  custom: {
    50: '#7d90d0',
    500: '#3565bb',
    950: '#000000',
  },
}

SCSS

$custom: #3565bb;
$custom-light: #7d90d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3565bb",
  "rgb": {
    "r": 53,
    "g": 101,
    "b": 187
  },
  "hsl": {
    "h": 218.507,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.51917,
    "c": 0.14537,
    "h": 261
  },
  "luminance": 0.13652
}

Semantic roles & 50–950 ramp

primary

#3565BB

secondary

#C9B083

accent

#A949DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3565BB

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

Preview Lab → · Contrast checker → · Palette generator →