#3559CD#3559CD

#3559CD is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.8% C 0.184 H 266.6°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#3559CD
RGB	rgb(53, 89, 205)
HSL	hsl(226, 60%, 51%)
HSV	hsv(226, 74%, 80%)
CMYK	cmyk(74.1%, 56.6%, 0%, 19.6%)
CIE-LAB	lab(41.70, 27.69, -63.82)
CIE-LCH	lch(41.70, 69.57, 293.45°)
OKLab	oklab(50.77% -0.011 -0.1841)
OKLCH	oklch(50.77% 0.184 266.6)
XYZ	xyz(16.0562, 12.3077, 59.2752)
Luminance	0.1231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3559CD #CDA935

analogous

#35A5CD #3559CD #5D35CD

triadic

#3559CD #CD3559 #59CD35

tetradic

#3559CD #CD35A5 #CDA935 #35CD5D

square

#3559CD #CD35A5 #CDA935 #35CD5D

split-complementary

#3559CD #CD5D35 #A5CD35

monochromatic

#1B2E6D #27439E #3559CD #6681D9 #97AAE5

Accessibility & contrast

On white

6.07

#3559CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#3559CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3559CD

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3559CD	#FFFFFF	#000000	##FFFFFF
##3559CD	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD1

Deuteranopia (green-blind)

#005CCB

Tritanopia (blue-blind)

#00768A

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3559cd;
/* rgb */ color: rgb(53, 89, 205);
/* oklch */ color: oklch(50.8% 0.184 266.6);

Tailwind

colors: {
  custom: {
    50: '#8187dd',
    500: '#3559cd',
    950: '#000000',
  },
}

SCSS

$custom: #3559cd;
$custom-light: #8187dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3559cd",
  "rgb": {
    "r": 53,
    "g": 89,
    "b": 205
  },
  "hsl": {
    "h": 225.789,
    "s": 60.317,
    "l": 50.588
  },
  "oklch": {
    "l": 0.50771,
    "c": 0.18442,
    "h": 266.6
  },
  "luminance": 0.12309
}

Semantic roles & 50–950 ramp

primary

#3559CD

secondary

#D1C18D

accent

#BE44E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3559CD

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

Preview Lab → · Contrast checker → · Palette generator →