#3564B8#3564B8

#3564B8 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.5% C 0.142 H 261.0°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#3564B8
RGB	rgb(53, 100, 184)
HSL	hsl(218, 55%, 46%)
HSV	hsv(218, 71%, 72%)
CMYK	cmyk(71.2%, 45.7%, 0%, 27.8%)
CIE-LAB	lab(43.26, 12.81, -49.13)
CIE-LCH	lch(43.26, 50.77, 284.62°)
OKLab	oklab(51.5% -0.0223 -0.1407)
OKLCH	oklch(51.5% 0.142 261)
XYZ	xyz(14.6740, 13.3304, 47.1378)
Luminance	0.1333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3564B8 #B88935

analogous

#35A6B8 #3564B8 #4835B8

triadic

#3564B8 #B83564 #64B835

tetradic

#3564B8 #B835A6 #B88935 #35B848

square

#3564B8 #B835A6 #B88935 #35B848

split-complementary

#3564B8 #B84835 #A6B835

monochromatic

#1A3059 #274A88 #3564B8 #5B85D0 #8AA8DD

Accessibility & contrast

On white

5.73

#3564B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#3564B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3564B8

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3564B8	#FFFFFF	#000000	##FFFFFF
##3564B8	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#396DBB

Deuteranopia (green-blind)

#1F61B6

Tritanopia (blue-blind)

#007885

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3564b8;
/* rgb */ color: rgb(53, 100, 184);
/* oklch */ color: oklch(51.5% 0.142 261.0);

Tailwind

colors: {
  custom: {
    50: '#7c8fce',
    500: '#3564b8',
    950: '#000000',
  },
}

SCSS

$custom: #3564b8;
$custom-light: #7c8fce;
$custom-dark: #000000;

JSON

{
  "hex": "#3564b8",
  "rgb": {
    "r": 53,
    "g": 100,
    "b": 184
  },
  "hsl": {
    "h": 218.473,
    "s": 55.274,
    "l": 46.471
  },
  "oklch": {
    "l": 0.51495,
    "c": 0.14244,
    "h": 261
  },
  "luminance": 0.13332
}

Semantic roles & 50–950 ramp

primary

#3564B8

secondary

#C7AE81

accent

#A949DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3564B8

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

Preview Lab → · Contrast checker → · Palette generator →