#3558BF#3558BF

#3558BF is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.5% C 0.167 H 266.2°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#3558BF
RGB	rgb(53, 88, 191)
HSL	hsl(225, 57%, 48%)
HSV	hsv(225, 72%, 75%)
CMYK	cmyk(72.3%, 53.9%, 0%, 25.1%)
CIE-LAB	lab(40.40, 23.17, -57.81)
CIE-LCH	lch(40.40, 62.28, 291.84°)
OKLab	oklab(49.47% -0.0111 -0.1664)
OKLCH	oklch(49.47% 0.167 266.2)
XYZ	xyz(14.3586, 11.4964, 50.7424)
Luminance	0.1150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3558BF #BF9C35

analogous

#359DBF #3558BF #5735BF

triadic

#3558BF #BF3558 #58BF35

tetradic

#3558BF #BF359D #BF9C35 #35BF57

square

#3558BF #BF359D #BF9C35 #35BF57

split-complementary

#3558BF #BF5735 #9DBF35

monochromatic

#1A2C5F #28428F #3558BF #5F7CD3 #8FA3E0

Accessibility & contrast

On white

6.36

#3558BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#3558BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3558BF

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3558BF	#FFFFFF	#000000	##FFFFFF
##3558BF	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0566C3

Deuteranopia (green-blind)

#0059BD

Tritanopia (blue-blind)

#007183

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3558bf;
/* rgb */ color: rgb(53, 88, 191);
/* oklch */ color: oklch(49.5% 0.167 266.2);

Tailwind

colors: {
  custom: {
    50: '#7e86d3',
    500: '#3558bf',
    950: '#000000',
  },
}

SCSS

$custom: #3558bf;
$custom-light: #7e86d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3558bf",
  "rgb": {
    "r": 53,
    "g": 88,
    "b": 191
  },
  "hsl": {
    "h": 224.783,
    "s": 56.557,
    "l": 47.843
  },
  "oklch": {
    "l": 0.49469,
    "c": 0.1668,
    "h": 266.2
  },
  "luminance": 0.11498
}

Semantic roles & 50–950 ramp

primary

#3558BF

secondary

#CAB985

accent

#B948E0

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3558BF

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

Preview Lab → · Contrast checker → · Palette generator →