#355FC5#355FC5

#355FC5 is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.4% C 0.166 H 264.4°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#355FC5
RGB	rgb(53, 95, 197)
HSL	hsl(223, 58%, 49%)
HSV	hsv(223, 73%, 77%)
CMYK	cmyk(73.1%, 51.8%, 0%, 22.7%)
CIE-LAB	lab(42.72, 20.86, -57.55)
CIE-LCH	lch(42.72, 61.21, 289.93°)
OKLab	oklab(51.36% -0.0162 -0.1655)
OKLCH	oklch(51.36% 0.166 264.4)
XYZ	xyz(15.6349, 12.9708, 54.4921)
Luminance	0.1297 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FC5 #C59B35

analogous

#35A7C5 #355FC5 #5335C5

triadic

#355FC5 #C5355F #5FC535

tetradic

#355FC5 #C535A7 #C59B35 #35C553

square

#355FC5 #C535A7 #C59B35 #35C553

split-complementary

#355FC5 #C55335 #A7C535

monochromatic

#1B3065 #284895 #355FC5 #6284D5 #93AAE2

Accessibility & contrast

On white

5.84

#355FC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#355FC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FC5

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FC5	#FFFFFF	#000000	##FFFFFF
##355FC5	1.00	5.84	3.59	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C6CC9

Deuteranopia (green-blind)

#005FC3

Tritanopia (blue-blind)

#007789

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #355fc5;
/* rgb */ color: rgb(53, 95, 197);
/* oklch */ color: oklch(51.4% 0.166 264.4);

Tailwind

colors: {
  custom: {
    50: '#7f8bd7',
    500: '#355fc5',
    950: '#000000',
  },
}

SCSS

$custom: #355fc5;
$custom-light: #7f8bd7;
$custom-dark: #000000;

JSON

{
  "hex": "#355fc5",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 197
  },
  "hsl": {
    "h": 222.5,
    "s": 57.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.51357,
    "c": 0.16633,
    "h": 264.4
  },
  "luminance": 0.12973
}

Semantic roles & 50–950 ramp

primary

#355FC5

secondary

#CDB989

accent

#B447E1

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #355FC5

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

Preview Lab → · Contrast checker → · Palette generator →