#355FC7#355FC7

#355FC7 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.5% C 0.169 H 264.6°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#355FC7
RGB	rgb(53, 95, 199)
HSL	hsl(223, 58%, 49%)
HSV	hsv(223, 73%, 78%)
CMYK	cmyk(73.4%, 52.3%, 0%, 22%)
CIE-LAB	lab(42.86, 21.60, -58.48)
CIE-LCH	lch(42.86, 62.34, 290.27°)
OKLab	oklab(51.51% -0.016 -0.1683)
OKLCH	oklch(51.51% 0.169 264.6)
XYZ	xyz(15.8656, 13.0631, 55.7070)
Luminance	0.1306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FC7 #C79D35

analogous

#35A8C7 #355FC7 #5435C7

triadic

#355FC7 #C7355F #5FC735

tetradic

#355FC7 #C735A8 #C79D35 #35C754

square

#355FC7 #C735A8 #C79D35 #35C754

split-complementary

#355FC7 #C75435 #A8C735

monochromatic

#1B3166 #284897 #355FC7 #6484D6 #94ABE2

Accessibility & contrast

On white

5.81

#355FC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#355FC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FC7

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FC7	#FFFFFF	#000000	##FFFFFF
##355FC7	1.00	5.81	3.61	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#186CCB

Deuteranopia (green-blind)

#005FC5

Tritanopia (blue-blind)

#00788A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #355fc7;
/* rgb */ color: rgb(53, 95, 199);
/* oklch */ color: oklch(51.5% 0.169 264.6);

Tailwind

colors: {
  custom: {
    50: '#808bd9',
    500: '#355fc7',
    950: '#000000',
  },
}

SCSS

$custom: #355fc7;
$custom-light: #808bd9;
$custom-dark: #000000;

JSON

{
  "hex": "#355fc7",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 199
  },
  "hsl": {
    "h": 222.74,
    "s": 57.937,
    "l": 49.412
  },
  "oklch": {
    "l": 0.51506,
    "c": 0.16905,
    "h": 264.6
  },
  "luminance": 0.13065
}

Semantic roles & 50–950 ramp

primary

#355FC7

secondary

#CEBA8A

accent

#B547E1

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #355FC7

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

Preview Lab → · Contrast checker → · Palette generator →