#3558A4#3558A4

#3558A4 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.5% C 0.129 H 263.6°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#3558A4
RGB	rgb(53, 88, 164)
HSL	hsl(221, 51%, 43%)
HSV	hsv(221, 68%, 64%)
CMYK	cmyk(67.7%, 46.3%, 0%, 35.7%)
CIE-LAB	lab(38.58, 13.17, -44.85)
CIE-LCH	lch(38.58, 46.74, 286.36°)
OKLab	oklab(47.5% -0.0143 -0.1283)
OKLCH	oklch(47.5% 0.129 263.6)
XYZ	xyz(11.6564, 10.4155, 36.5109)
Luminance	0.1042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3558A4 #A48135

analogous

#3590A4 #3558A4 #4935A4

triadic

#3558A4 #A43558 #58A435

tetradic

#3558A4 #A43590 #A48135 #35A449

square

#3558A4 #A43590 #A48135 #35A449

split-complementary

#3558A4 #A44935 #90A435

monochromatic

#172647 #263F76 #3558A4 #5075C6 #7E9AD5

Accessibility & contrast

On white

6.81

#3558A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#3558A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3558A4

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3558A4	#FFFFFF	#000000	##FFFFFF
##3558A4	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3260A7

Deuteranopia (green-blind)

#1D56A2

Tritanopia (blue-blind)

#006A76

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3558a4;
/* rgb */ color: rgb(53, 88, 164);
/* oklch */ color: oklch(47.5% 0.129 263.6);

Tailwind

colors: {
  custom: {
    50: '#7986bf',
    500: '#3558a4',
    950: '#000000',
  },
}

SCSS

$custom: #3558a4;
$custom-light: #7986bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3558a4",
  "rgb": {
    "r": 53,
    "g": 88,
    "b": 164
  },
  "hsl": {
    "h": 221.081,
    "s": 51.152,
    "l": 42.549
  },
  "oklch": {
    "l": 0.47495,
    "c": 0.12909,
    "h": 263.6
  },
  "luminance": 0.10417
}

Semantic roles & 50–950 ramp

primary

#3558A4

secondary

#BEA876

accent

#AE4DDB

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3558A4

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

Preview Lab → · Contrast checker → · Palette generator →