#3558DA#3558DA

#3558DA is a mid, highly saturated blue. Relative luminance 0.128; OKLCH L 51.6% C 0.203 H 267.2°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#3558DA
RGB	rgb(53, 88, 218)
HSL	hsl(227, 69%, 53%)
HSV	hsv(227, 76%, 85%)
CMYK	cmyk(75.7%, 59.6%, 0%, 14.5%)
CIE-LAB	lab(42.45, 33.07, -70.05)
CIE-LCH	lch(42.45, 77.47, 295.27°)
OKLab	oklab(51.65% -0.0099 -0.2024)
OKLCH	oklch(51.65% 0.203 267.2)
XYZ	xyz(17.6084, 12.7963, 67.8580)
Luminance	0.1280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3558DA #DAB735

analogous

#35AADA #3558DA #6435DA

triadic

#3558DA #DA3558 #58DA35

tetradic

#3558DA #DA35AA #DAB735 #35DA64

square

#3558DA #DA35AA #DAB735 #35DA64

split-complementary

#3558DA #DA6435 #AADA35

monochromatic

#172D7E #203FB1 #3558DA #6983E3 #9CAEED

Accessibility & contrast

On white

5.90

#3558DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#3558DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3558DA

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3558DA	#FFFFFF	#000000	##FFFFFF
##3558DA	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CDE

Deuteranopia (green-blind)

#005DD7

Tritanopia (blue-blind)

#007990

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3558da;
/* rgb */ color: rgb(53, 88, 218);
/* oklch */ color: oklch(51.6% 0.203 267.2);

Tailwind

colors: {
  custom: {
    50: '#8486e6',
    500: '#3558da',
    950: '#000000',
  },
}

SCSS

$custom: #3558da;
$custom-light: #8486e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3558da",
  "rgb": {
    "r": 53,
    "g": 88,
    "b": 218
  },
  "hsl": {
    "h": 227.273,
    "s": 69.038,
    "l": 53.137
  },
  "oklch": {
    "l": 0.51649,
    "c": 0.20264,
    "h": 267.2
  },
  "luminance": 0.12798
}

Semantic roles & 50–950 ramp

primary

#3558DA

secondary

#D9CA92

accent

#C73CEC

background

#F8F8FE

surface

#F0EFFC

border

#CBCAD5

text

#0D0B16

muted

#7D7C84

Preview Lab

Preview with #3558DA

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

Preview Lab → · Contrast checker → · Palette generator →