#3566C9#3566C9

#3566C9 is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.1% C 0.163 H 262.5°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3566C9
RGB	rgb(53, 102, 201)
HSL	hsl(220, 58%, 50%)
HSV	hsv(220, 74%, 79%)
CMYK	cmyk(73.6%, 49.3%, 0%, 21.2%)
CIE-LAB	lab(44.91, 17.84, -56.33)
CIE-LCH	lch(44.91, 59.09, 287.58°)
OKLab	oklab(53.11% -0.0214 -0.1618)
OKLCH	oklch(53.11% 0.163 262.5)
XYZ	xyz(16.7584, 14.4748, 57.1577)
Luminance	0.1448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3566C9 #C99835

analogous

#35B0C9 #3566C9 #4E35C9

triadic

#3566C9 #C93566 #66C935

tetradic

#3566C9 #C935B0 #C99835 #35C94E

square

#3566C9 #C935B0 #C99835 #35C94E

split-complementary

#3566C9 #C94E35 #B0C935

monochromatic

#1B3568 #284D99 #3566C9 #658AD6 #95AFE3

Accessibility & contrast

On white

5.39

#3566C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#3566C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3566C9

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3566C9	#FFFFFF	#000000	##FFFFFF
##3566C9	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C71CD

Deuteranopia (green-blind)

#0064C7

Tritanopia (blue-blind)

#007E8E

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3566c9;
/* rgb */ color: rgb(53, 102, 201);
/* oklch */ color: oklch(53.1% 0.163 262.5);

Tailwind

colors: {
  custom: {
    50: '#8091da',
    500: '#3566c9',
    950: '#000000',
  },
}

SCSS

$custom: #3566c9;
$custom-light: #8091da;
$custom-dark: #000000;

JSON

{
  "hex": "#3566c9",
  "rgb": {
    "r": 53,
    "g": 102,
    "b": 201
  },
  "hsl": {
    "h": 220.135,
    "s": 58.268,
    "l": 49.804
  },
  "oklch": {
    "l": 0.5311,
    "c": 0.16323,
    "h": 262.5
  },
  "luminance": 0.14477
}

Semantic roles & 50–950 ramp

primary

#3566C9

secondary

#CEB88B

accent

#AE46E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3566C9

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

Preview Lab → · Contrast checker → · Palette generator →