#3558B3#3558B3

#3558B3 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.6% C 0.150 H 265.3°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#3558B3
RGB	rgb(53, 88, 179)
HSL	hsl(223, 54%, 45%)
HSV	hsv(223, 70%, 70%)
CMYK	cmyk(70.4%, 50.8%, 0%, 29.8%)
CIE-LAB	lab(39.56, 18.72, -52.14)
CIE-LCH	lch(39.56, 55.40, 289.75°)
OKLab	oklab(48.56% -0.0122 -0.1498)
OKLCH	oklch(48.56% 0.15 265.3)
XYZ	xyz(13.0918, 10.9897, 44.0704)
Luminance	0.1099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3558B3 #B39035

analogous

#3597B3 #3558B3 #5135B3

triadic

#3558B3 #B33558 #58B335

tetradic

#3558B3 #B33597 #B39035 #35B351

square

#3558B3 #B33597 #B39035 #35B351

split-complementary

#3558B3 #B35135 #97B335

monochromatic

#192A55 #274184 #3558B3 #5878CD #879EDB

Accessibility & contrast

On white

6.57

#3558B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3558B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3558B3

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3558B3	#FFFFFF	#000000	##FFFFFF
##3558B3	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2263B6

Deuteranopia (green-blind)

#0058B1

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3558b3;
/* rgb */ color: rgb(53, 88, 179);
/* oklch */ color: oklch(48.6% 0.150 265.3);

Tailwind

colors: {
  custom: {
    50: '#7c86ca',
    500: '#3558b3',
    950: '#000000',
  },
}

SCSS

$custom: #3558b3;
$custom-light: #7c86ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3558b3",
  "rgb": {
    "r": 53,
    "g": 88,
    "b": 179
  },
  "hsl": {
    "h": 223.333,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.48564,
    "c": 0.15026,
    "h": 265.3
  },
  "luminance": 0.10991
}

Semantic roles & 50–950 ramp

primary

#3558B3

secondary

#C5B27F

accent

#B54ADE

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3558B3

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

Preview Lab → · Contrast checker → · Palette generator →