#355FC8#355FC8

#355FC8 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.6% C 0.170 H 264.7°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#355FC8
RGB	rgb(53, 95, 200)
HSL	hsl(223, 58%, 50%)
HSV	hsv(223, 74%, 78%)
CMYK	cmyk(73.5%, 52.5%, 0%, 21.6%)
CIE-LAB	lab(42.93, 21.97, -58.95)
CIE-LCH	lch(42.93, 62.91, 290.44°)
OKLab	oklab(51.58% -0.0159 -0.1696)
OKLCH	oklch(51.58% 0.17 264.7)
XYZ	xyz(15.9821, 13.1097, 56.3205)
Luminance	0.1311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FC8 #C89E35

analogous

#35A9C8 #355FC8 #5435C8

triadic

#355FC8 #C8355F #5FC835

tetradic

#355FC8 #C835A9 #C89E35 #35C854

square

#355FC8 #C835A9 #C89E35 #35C854

split-complementary

#355FC8 #C85435 #A9C835

monochromatic

#1B3167 #284898 #355FC8 #6485D6 #95ABE3

Accessibility & contrast

On white

5.80

#355FC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#355FC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FC8

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FC8	#FFFFFF	#000000	##FFFFFF
##355FC8	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#156CCC

Deuteranopia (green-blind)

#005FC6

Tritanopia (blue-blind)

#00788A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #355fc8;
/* rgb */ color: rgb(53, 95, 200);
/* oklch */ color: oklch(51.6% 0.170 264.7);

Tailwind

colors: {
  custom: {
    50: '#808bd9',
    500: '#355fc8',
    950: '#000000',
  },
}

SCSS

$custom: #355fc8;
$custom-light: #808bd9;
$custom-dark: #000000;

JSON

{
  "hex": "#355fc8",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 200
  },
  "hsl": {
    "h": 222.857,
    "s": 58.103,
    "l": 49.608
  },
  "oklch": {
    "l": 0.51582,
    "c": 0.17039,
    "h": 264.7
  },
  "luminance": 0.13111
}

Semantic roles & 50–950 ramp

primary

#355FC8

secondary

#CEBB8B

accent

#B546E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #355FC8

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

Preview Lab → · Contrast checker → · Palette generator →