#3559B3#3559B3

#3559B3 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.8% C 0.149 H 265.0°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#3559B3
RGB	rgb(53, 89, 179)
HSL	hsl(223, 54%, 45%)
HSV	hsv(223, 70%, 70%)
CMYK	cmyk(70.4%, 50.3%, 0%, 29.8%)
CIE-LAB	lab(39.84, 18.07, -51.70)
CIE-LCH	lch(39.84, 54.76, 289.27°)
OKLab	oklab(48.78% -0.0131 -0.1484)
OKLCH	oklch(48.78% 0.149 265)
XYZ	xyz(13.1744, 11.1550, 44.0979)
Luminance	0.1116 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3559B3 #B38F35

analogous

#3598B3 #3559B3 #5035B3

triadic

#3559B3 #B33559 #59B335

tetradic

#3559B3 #B33598 #B38F35 #35B350

square

#3559B3 #B33598 #B38F35 #35B350

split-complementary

#3559B3 #B35035 #98B335

monochromatic

#192A55 #274284 #3559B3 #5879CD #879FDB

Accessibility & contrast

On white

6.50

#3559B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3559B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3559B3

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3559B3	#FFFFFF	#000000	##FFFFFF
##3559B3	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2564B6

Deuteranopia (green-blind)

#0058B1

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3559b3;
/* rgb */ color: rgb(53, 89, 179);
/* oklch */ color: oklch(48.8% 0.149 265.0);

Tailwind

colors: {
  custom: {
    50: '#7c87ca',
    500: '#3559b3',
    950: '#000000',
  },
}

SCSS

$custom: #3559b3;
$custom-light: #7c87ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3559b3",
  "rgb": {
    "r": 53,
    "g": 89,
    "b": 179
  },
  "hsl": {
    "h": 222.857,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.48775,
    "c": 0.149,
    "h": 265
  },
  "luminance": 0.11156
}

Semantic roles & 50–950 ramp

primary

#3559B3

secondary

#C5B17F

accent

#B44ADE

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3559B3

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

Preview Lab → · Contrast checker → · Palette generator →