#355BD0#355BD0

#355BD0 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.4% C 0.186 H 266.2°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#355BD0
RGB	rgb(53, 91, 208)
HSL	hsl(225, 62%, 51%)
HSV	hsv(225, 75%, 82%)
CMYK	cmyk(74.5%, 56.2%, 0%, 18.4%)
CIE-LAB	lab(42.45, 27.51, -64.33)
CIE-LCH	lch(42.45, 69.97, 293.15°)
OKLab	oklab(51.4% -0.0123 -0.1856)
OKLCH	oklch(51.4% 0.186 266.2)
XYZ	xyz(16.5905, 12.7913, 61.2569)
Luminance	0.1279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355BD0 #D0AA35

analogous

#35A9D0 #355BD0 #5C35D0

triadic

#355BD0 #D0355B #5BD035

tetradic

#355BD0 #D035A9 #D0AA35 #35D05C

square

#355BD0 #D035A9 #D0AA35 #35D05C

split-complementary

#355BD0 #D05C35 #A9D035

monochromatic

#1A2F70 #2644A2 #355BD0 #6783DC #98ACE7

Accessibility & contrast

On white

5.90

#355BD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#355BD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355BD0

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355BD0	#FFFFFF	#000000	##FFFFFF
##355BD0	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)

#006CD4

Deuteranopia (green-blind)

#005DCE

Tritanopia (blue-blind)

#00788C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #355bd0;
/* rgb */ color: rgb(53, 91, 208);
/* oklch */ color: oklch(51.4% 0.186 266.2);

Tailwind

colors: {
  custom: {
    50: '#8288df',
    500: '#355bd0',
    950: '#000000',
  },
}

SCSS

$custom: #355bd0;
$custom-light: #8288df;
$custom-dark: #000000;

JSON

{
  "hex": "#355bd0",
  "rgb": {
    "r": 53,
    "g": 91,
    "b": 208
  },
  "hsl": {
    "h": 225.29,
    "s": 62.249,
    "l": 51.176
  },
  "oklch": {
    "l": 0.51402,
    "c": 0.18597,
    "h": 266.2
  },
  "luminance": 0.12793
}

Semantic roles & 50–950 ramp

primary

#355BD0

secondary

#D3C28E

accent

#BD42E5

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #355BD0

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

Preview Lab → · Contrast checker → · Palette generator →