#3559B8#3559B8

#3559B8 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.1% C 0.156 H 265.4°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#3559B8
RGB	rgb(53, 89, 184)
HSL	hsl(224, 55%, 46%)
HSV	hsv(224, 71%, 72%)
CMYK	cmyk(71.2%, 51.6%, 0%, 27.8%)
CIE-LAB	lab(40.18, 19.93, -54.08)
CIE-LCH	lch(40.18, 57.64, 290.23°)
OKLab	oklab(49.14% -0.0125 -0.1554)
OKLCH	oklch(49.14% 0.156 265.4)
XYZ	xyz(13.6893, 11.3609, 46.8095)
Luminance	0.1136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3559B8 #B89435

analogous

#359BB8 #3559B8 #5235B8

triadic

#3559B8 #B83559 #59B835

tetradic

#3559B8 #B8359B #B89435 #35B852

square

#3559B8 #B8359B #B89435 #35B852

split-complementary

#3559B8 #B85235 #9BB835

monochromatic

#1A2B59 #274288 #3559B8 #5B7BD0 #8AA1DD

Accessibility & contrast

On white

6.42

#3559B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#3559B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3559B8

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3559B8	#FFFFFF	#000000	##FFFFFF
##3559B8	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D65BB

Deuteranopia (green-blind)

#0059B6

Tritanopia (blue-blind)

#007080

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3559b8;
/* rgb */ color: rgb(53, 89, 184);
/* oklch */ color: oklch(49.1% 0.156 265.4);

Tailwind

colors: {
  custom: {
    50: '#7d87ce',
    500: '#3559b8',
    950: '#000000',
  },
}

SCSS

$custom: #3559b8;
$custom-light: #7d87ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3559b8",
  "rgb": {
    "r": 53,
    "g": 89,
    "b": 184
  },
  "hsl": {
    "h": 223.511,
    "s": 55.274,
    "l": 46.471
  },
  "oklch": {
    "l": 0.49143,
    "c": 0.15594,
    "h": 265.4
  },
  "luminance": 0.11362
}

Semantic roles & 50–950 ramp

primary

#3559B8

secondary

#C7B481

accent

#B649DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3559B8

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

Preview Lab → · Contrast checker → · Palette generator →