#3558B4#3558B4

#3558B4 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.6% C 0.152 H 265.4°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#3558B4
RGB	rgb(53, 88, 180)
HSL	hsl(223, 55%, 46%)
HSV	hsv(223, 71%, 71%)
CMYK	cmyk(70.6%, 51.1%, 0%, 29.4%)
CIE-LAB	lab(39.63, 19.10, -52.62)
CIE-LCH	lch(39.63, 55.98, 289.94°)
OKLab	oklab(48.64% -0.0121 -0.1512)
OKLCH	oklch(48.64% 0.152 265.4)
XYZ	xyz(13.1933, 11.0303, 44.6049)
Luminance	0.1103 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3558B4 #B49135

analogous

#3597B4 #3558B4 #5235B4

triadic

#3558B4 #B43558 #58B435

tetradic

#3558B4 #B43597 #B49135 #35B452

square

#3558B4 #B43597 #B49135 #35B452

split-complementary

#3558B4 #B45235 #97B435

monochromatic

#192A55 #274185 #3558B4 #5879CE #889FDC

Accessibility & contrast

On white

6.55

#3558B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#3558B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3558B4

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3558B4	#FFFFFF	#000000	##FFFFFF
##3558B4	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2063B7

Deuteranopia (green-blind)

#0058B2

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3558b4;
/* rgb */ color: rgb(53, 88, 180);
/* oklch */ color: oklch(48.6% 0.152 265.4);

Tailwind

colors: {
  custom: {
    50: '#7c86cb',
    500: '#3558b4',
    950: '#000000',
  },
}

SCSS

$custom: #3558b4;
$custom-light: #7c86cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3558b4",
  "rgb": {
    "r": 53,
    "g": 88,
    "b": 180
  },
  "hsl": {
    "h": 223.465,
    "s": 54.506,
    "l": 45.686
  },
  "oklch": {
    "l": 0.48638,
    "c": 0.15164,
    "h": 265.4
  },
  "luminance": 0.11032
}

Semantic roles & 50–950 ramp

primary

#3558B4

secondary

#C6B27F

accent

#B54ADE

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3558B4

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

Preview Lab → · Contrast checker → · Palette generator →