#355DC3#355DC3

#355DC3 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.8% C 0.166 H 264.9°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#355DC3
RGB	rgb(53, 93, 195)
HSL	hsl(223, 57%, 49%)
HSV	hsv(223, 73%, 76%)
CMYK	cmyk(72.8%, 52.3%, 0%, 23.5%)
CIE-LAB	lab(42.04, 21.41, -57.49)
CIE-LCH	lch(42.04, 61.35, 290.43°)
OKLab	oklab(50.8% -0.0147 -0.1654)
OKLCH	oklch(50.8% 0.166 264.9)
XYZ	xyz(15.2294, 12.5241, 53.2339)
Luminance	0.1253 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355DC3 #C39B35

analogous

#35A4C3 #355DC3 #5435C3

triadic

#355DC3 #C3355D #5DC335

tetradic

#355DC3 #C335A4 #C39B35 #35C354

square

#355DC3 #C335A4 #C39B35 #35C354

split-complementary

#355DC3 #C35435 #A4C335

monochromatic

#1B2F63 #284693 #355DC3 #6181D4 #91A8E1

Accessibility & contrast

On white

5.99

#355DC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#355DC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355DC3

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355DC3	#FFFFFF	#000000	##FFFFFF
##355DC3	1.00	5.99	3.51	5.99
#FFFFFF	5.99	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#176AC7

Deuteranopia (green-blind)

#005DC1

Tritanopia (blue-blind)

#007687

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #355dc3;
/* rgb */ color: rgb(53, 93, 195);
/* oklch */ color: oklch(50.8% 0.166 264.9);

Tailwind

colors: {
  custom: {
    50: '#7f8ad6',
    500: '#355dc3',
    950: '#000000',
  },
}

SCSS

$custom: #355dc3;
$custom-light: #7f8ad6;
$custom-dark: #000000;

JSON

{
  "hex": "#355dc3",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 195
  },
  "hsl": {
    "h": 223.099,
    "s": 57.258,
    "l": 48.627
  },
  "oklch": {
    "l": 0.50795,
    "c": 0.16607,
    "h": 264.9
  },
  "luminance": 0.12526
}

Semantic roles & 50–950 ramp

primary

#355DC3

secondary

#CCB988

accent

#B547E1

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #355DC3

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

Preview Lab → · Contrast checker → · Palette generator →