#355DC4#355DC4

#355DC4 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 50.9% C 0.167 H 265.0°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#355DC4
RGB	rgb(53, 93, 196)
HSL	hsl(223, 57%, 49%)
HSV	hsv(223, 73%, 77%)
CMYK	cmyk(73%, 52.6%, 0%, 23.1%)
CIE-LAB	lab(42.11, 21.78, -57.96)
CIE-LCH	lch(42.11, 61.92, 290.60°)
OKLab	oklab(50.87% -0.0147 -0.1668)
OKLCH	oklch(50.87% 0.167 265)
XYZ	xyz(15.3428, 12.5695, 53.8314)
Luminance	0.1257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355DC4 #C49C35

analogous

#35A5C4 #355DC4 #5535C4

triadic

#355DC4 #C4355D #5DC435

tetradic

#355DC4 #C435A5 #C49C35 #35C455

square

#355DC4 #C435A5 #C49C35 #35C455

split-complementary

#355DC4 #C45535 #A5C435

monochromatic

#1B2F64 #284694 #355DC4 #6282D4 #92A8E1

Accessibility & contrast

On white

5.98

#355DC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#355DC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355DC4

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355DC4	#FFFFFF	#000000	##FFFFFF
##355DC4	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#156AC8

Deuteranopia (green-blind)

#005DC2

Tritanopia (blue-blind)

#007687

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #355dc4;
/* rgb */ color: rgb(53, 93, 196);
/* oklch */ color: oklch(50.9% 0.167 265.0);

Tailwind

colors: {
  custom: {
    50: '#7f8ad7',
    500: '#355dc4',
    950: '#000000',
  },
}

SCSS

$custom: #355dc4;
$custom-light: #7f8ad7;
$custom-dark: #000000;

JSON

{
  "hex": "#355dc4",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 196
  },
  "hsl": {
    "h": 223.217,
    "s": 57.43,
    "l": 48.824
  },
  "oklch": {
    "l": 0.5087,
    "c": 0.16743,
    "h": 265
  },
  "luminance": 0.12571
}

Semantic roles & 50–950 ramp

primary

#355DC4

secondary

#CCB988

accent

#B647E1

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #355DC4

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

Preview Lab → · Contrast checker → · Palette generator →