#3564B3#3564B3

#3564B3 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.2% C 0.136 H 260.1°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#3564B3
RGB	rgb(53, 100, 179)
HSL	hsl(218, 54%, 45%)
HSV	hsv(218, 70%, 70%)
CMYK	cmyk(70.4%, 44.1%, 0%, 29.8%)
CIE-LAB	lab(42.95, 10.96, -46.70)
CIE-LCH	lch(42.95, 47.97, 283.21°)
OKLab	oklab(51.16% -0.0232 -0.1335)
OKLCH	oklch(51.16% 0.136 260.1)
XYZ	xyz(14.1591, 13.1244, 44.4261)
Luminance	0.1313 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3564B3 #B38435

analogous

#35A3B3 #3564B3 #4535B3

triadic

#3564B3 #B33564 #64B335

tetradic

#3564B3 #B335A3 #B38435 #35B345

square

#3564B3 #B335A3 #B38435 #35B345

split-complementary

#3564B3 #B34535 #A3B335

monochromatic

#192F55 #274A84 #3564B3 #5884CD #87A6DB

Accessibility & contrast

On white

5.79

#3564B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#3564B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3564B3

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3564B3	#FFFFFF	#000000	##FFFFFF
##3564B3	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6CB6

Deuteranopia (green-blind)

#2760B1

Tritanopia (blue-blind)

#007683

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3564b3;
/* rgb */ color: rgb(53, 100, 179);
/* oklch */ color: oklch(51.2% 0.136 260.1);

Tailwind

colors: {
  custom: {
    50: '#7b8fca',
    500: '#3564b3',
    950: '#000000',
  },
}

SCSS

$custom: #3564b3;
$custom-light: #7b8fca;
$custom-dark: #000000;

JSON

{
  "hex": "#3564b3",
  "rgb": {
    "r": 53,
    "g": 100,
    "b": 179
  },
  "hsl": {
    "h": 217.619,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.5116,
    "c": 0.13555,
    "h": 260.1
  },
  "luminance": 0.13126
}

Semantic roles & 50–950 ramp

primary

#3564B3

secondary

#C5AB7F

accent

#A74ADE

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3564B3

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

Preview Lab → · Contrast checker → · Palette generator →