#3559B7#3559B7

#3559B7 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.1% C 0.155 H 265.3°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#3559B7
RGB	rgb(53, 89, 183)
HSL	hsl(223, 55%, 46%)
HSV	hsv(223, 71%, 72%)
CMYK	cmyk(71%, 51.4%, 0%, 28.2%)
CIE-LAB	lab(40.11, 19.56, -53.61)
CIE-LCH	lch(40.11, 57.06, 290.04°)
OKLab	oklab(49.07% -0.0126 -0.154)
OKLCH	oklch(49.07% 0.155 265.3)
XYZ	xyz(13.5848, 11.3191, 46.2594)
Luminance	0.1132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3559B7 #B79335

analogous

#359AB7 #3559B7 #5235B7

triadic

#3559B7 #B73559 #59B735

tetradic

#3559B7 #B7359A #B79335 #35B752

square

#3559B7 #B7359A #B79335 #35B752

split-complementary

#3559B7 #B75235 #9AB735

monochromatic

#1A2B58 #274288 #3559B7 #5A7ACF #89A1DD

Accessibility & contrast

On white

6.43

#3559B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#3559B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3559B7

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3559B7	#FFFFFF	#000000	##FFFFFF
##3559B7	1.00	6.43	3.26	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F65BA

Deuteranopia (green-blind)

#0059B5

Tritanopia (blue-blind)

#006F7F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3559b7;
/* rgb */ color: rgb(53, 89, 183);
/* oklch */ color: oklch(49.1% 0.155 265.3);

Tailwind

colors: {
  custom: {
    50: '#7c87cd',
    500: '#3559b7',
    950: '#000000',
  },
}

SCSS

$custom: #3559b7;
$custom-light: #7c87cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3559b7",
  "rgb": {
    "r": 53,
    "g": 89,
    "b": 183
  },
  "hsl": {
    "h": 223.385,
    "s": 55.085,
    "l": 46.275
  },
  "oklch": {
    "l": 0.49069,
    "c": 0.15456,
    "h": 265.3
  },
  "luminance": 0.11321
}

Semantic roles & 50–950 ramp

primary

#3559B7

secondary

#C7B481

accent

#B549DE

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3559B7

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

Preview Lab → · Contrast checker → · Palette generator →