#3559C9#3559C9

#3559C9 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.5% C 0.179 H 266.4°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#3559C9
RGB	rgb(53, 89, 201)
HSL	hsl(225, 58%, 50%)
HSV	hsv(225, 74%, 79%)
CMYK	cmyk(73.6%, 55.7%, 0%, 21.2%)
CIE-LAB	lab(41.40, 26.22, -62.00)
CIE-LCH	lch(41.40, 67.31, 292.92°)
OKLab	oklab(50.45% -0.0112 -0.1787)
OKLCH	oklch(50.45% 0.179 266.4)
XYZ	xyz(15.5795, 12.1170, 56.7648)
Luminance	0.1212 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3559C9 #C9A535

analogous

#35A3C9 #3559C9 #5B35C9

triadic

#3559C9 #C93559 #59C935

tetradic

#3559C9 #C935A3 #C9A535 #35C95B

square

#3559C9 #C935A3 #C9A535 #35C95B

split-complementary

#3559C9 #C95B35 #A3C935

monochromatic

#1B2E68 #284499 #3559C9 #6580D6 #95A8E3

Accessibility & contrast

On white

6.13

#3559C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#3559C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3559C9

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3559C9	#FFFFFF	#000000	##FFFFFF
##3559C9	1.00	6.13	3.42	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CD

Deuteranopia (green-blind)

#005BC7

Tritanopia (blue-blind)

#007588

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3559c9;
/* rgb */ color: rgb(53, 89, 201);
/* oklch */ color: oklch(50.5% 0.179 266.4);

Tailwind

colors: {
  custom: {
    50: '#8087da',
    500: '#3559c9',
    950: '#000000',
  },
}

SCSS

$custom: #3559c9;
$custom-light: #8087da;
$custom-dark: #000000;

JSON

{
  "hex": "#3559c9",
  "rgb": {
    "r": 53,
    "g": 89,
    "b": 201
  },
  "hsl": {
    "h": 225.405,
    "s": 58.268,
    "l": 49.804
  },
  "oklch": {
    "l": 0.50451,
    "c": 0.17908,
    "h": 266.4
  },
  "luminance": 0.12119
}

Semantic roles & 50–950 ramp

primary

#3559C9

secondary

#CEBE8B

accent

#BC46E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3559C9

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

Preview Lab → · Contrast checker → · Palette generator →