#3558BC#3558BC

#3558BC is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.2% C 0.163 H 266.0°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#3558BC
RGB	rgb(53, 88, 188)
HSL	hsl(224, 56%, 47%)
HSV	hsv(224, 72%, 74%)
CMYK	cmyk(71.8%, 53.2%, 0%, 26.3%)
CIE-LAB	lab(40.19, 22.06, -56.41)
CIE-LCH	lch(40.19, 60.57, 291.36°)
OKLab	oklab(49.24% -0.0113 -0.1623)
OKLCH	oklch(49.24% 0.163 266)
XYZ	xyz(14.0318, 11.3657, 49.0215)
Luminance	0.1137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3558BC #BC9935

analogous

#359CBC #3558BC #5535BC

triadic

#3558BC #BC3558 #58BC35

tetradic

#3558BC #BC359C #BC9935 #35BC55

square

#3558BC #BC359C #BC9935 #35BC55

split-complementary

#3558BC #BC5535 #9CBC35

monochromatic

#1A2B5D #28428C #3558BC #5D7BD1 #8DA2DF

Accessibility & contrast

On white

6.42

#3558BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#3558BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3558BC

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3558BC	#FFFFFF	#000000	##FFFFFF
##3558BC	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)

#1065C0

Deuteranopia (green-blind)

#0059BA

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3558bc;
/* rgb */ color: rgb(53, 88, 188);
/* oklch */ color: oklch(49.2% 0.163 266.0);

Tailwind

colors: {
  custom: {
    50: '#7e86d1',
    500: '#3558bc',
    950: '#000000',
  },
}

SCSS

$custom: #3558bc;
$custom-light: #7e86d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3558bc",
  "rgb": {
    "r": 53,
    "g": 88,
    "b": 188
  },
  "hsl": {
    "h": 224.444,
    "s": 56.017,
    "l": 47.255
  },
  "oklch": {
    "l": 0.49239,
    "c": 0.16269,
    "h": 266
  },
  "luminance": 0.11367
}

Semantic roles & 50–950 ramp

primary

#3558BC

secondary

#C9B784

accent

#B848DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3558BC

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

Preview Lab → · Contrast checker → · Palette generator →