#3559B5#3559B5

#3559B5 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.9% C 0.152 H 265.1°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#3559B5
RGB	rgb(53, 89, 181)
HSL	hsl(223, 55%, 46%)
HSV	hsv(223, 71%, 71%)
CMYK	cmyk(70.7%, 50.8%, 0%, 29%)
CIE-LAB	lab(39.98, 18.81, -52.65)
CIE-LCH	lch(39.98, 55.91, 289.66°)
OKLab	oklab(48.92% -0.0129 -0.1512)
OKLCH	oklch(48.92% 0.152 265.1)
XYZ	xyz(13.3781, 11.2365, 45.1709)
Luminance	0.1124 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3559B5 #B59135

analogous

#3599B5 #3559B5 #5135B5

triadic

#3559B5 #B53559 #59B535

tetradic

#3559B5 #B53599 #B59135 #35B551

square

#3559B5 #B53599 #B59135 #35B551

split-complementary

#3559B5 #B55135 #99B535

monochromatic

#192A56 #274286 #3559B5 #597ACE #88A0DC

Accessibility & contrast

On white

6.47

#3559B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#3559B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3559B5

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3559B5	#FFFFFF	#000000	##FFFFFF
##3559B5	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2264B8

Deuteranopia (green-blind)

#0059B3

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3559b5;
/* rgb */ color: rgb(53, 89, 181);
/* oklch */ color: oklch(48.9% 0.152 265.1);

Tailwind

colors: {
  custom: {
    50: '#7c87cc',
    500: '#3559b5',
    950: '#000000',
  },
}

SCSS

$custom: #3559b5;
$custom-light: #7c87cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3559b5",
  "rgb": {
    "r": 53,
    "g": 89,
    "b": 181
  },
  "hsl": {
    "h": 223.125,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.48921,
    "c": 0.15179,
    "h": 265.1
  },
  "luminance": 0.11238
}

Semantic roles & 50–950 ramp

primary

#3559B5

secondary

#C6B280

accent

#B44ADE

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3559B5

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

Preview Lab → · Contrast checker → · Palette generator →