#355FD3#355FD3

#355FD3 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.4% C 0.185 H 265.4°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#355FD3
RGB	rgb(53, 95, 211)
HSL	hsl(224, 64%, 52%)
HSV	hsv(224, 75%, 83%)
CMYK	cmyk(74.9%, 55%, 0%, 17.3%)
CIE-LAB	lab(43.72, 26.04, -63.99)
CIE-LCH	lch(43.72, 69.09, 292.14°)
OKLab	oklab(52.43% -0.015 -0.1845)
OKLCH	oklch(52.43% 0.185 265.4)
XYZ	xyz(17.3141, 13.6425, 63.3362)
Luminance	0.1364 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FD3 #D3A935

analogous

#35AED3 #355FD3 #5A35D3

triadic

#355FD3 #D3355F #5FD335

tetradic

#355FD3 #D335AE #D3A935 #35D35A

square

#355FD3 #D335AE #D3A935 #35D35A

split-complementary

#355FD3 #D35A35 #AED335

monochromatic

#193274 #2447A7 #355FD3 #6787DE #9AAFE9

Accessibility & contrast

On white

5.63

#355FD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#355FD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FD3

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FD3	#FFFFFF	#000000	##FFFFFF
##355FD3	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FD7

Deuteranopia (green-blind)

#0060D1

Tritanopia (blue-blind)

#007C90

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #355fd3;
/* rgb */ color: rgb(53, 95, 211);
/* oklch */ color: oklch(52.4% 0.185 265.4);

Tailwind

colors: {
  custom: {
    50: '#828be1',
    500: '#355fd3',
    950: '#000000',
  },
}

SCSS

$custom: #355fd3;
$custom-light: #828be1;
$custom-dark: #000000;

JSON

{
  "hex": "#355fd3",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 211
  },
  "hsl": {
    "h": 224.051,
    "s": 64.228,
    "l": 51.765
  },
  "oklch": {
    "l": 0.52427,
    "c": 0.18511,
    "h": 265.4
  },
  "luminance": 0.13644
}

Semantic roles & 50–950 ramp

primary

#355FD3

secondary

#D5C28F

accent

#BB41E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #355FD3

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

Preview Lab → · Contrast checker → · Palette generator →