#355FB8#355FB8

#355FB8 is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.4% C 0.149 H 263.1°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#355FB8
RGB	rgb(53, 95, 184)
HSL	hsl(221, 55%, 46%)
HSV	hsv(221, 71%, 72%)
CMYK	cmyk(71.2%, 48.4%, 0%, 27.8%)
CIE-LAB	lab(41.85, 16.03, -51.40)
CIE-LCH	lch(41.85, 53.84, 287.32°)
OKLab	oklab(50.41% -0.0178 -0.1474)
OKLCH	oklch(50.41% 0.149 263.1)
XYZ	xyz(14.2091, 12.4005, 46.9828)
Luminance	0.1240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FB8 #B88E35

analogous

#35A1B8 #355FB8 #4D35B8

triadic

#355FB8 #B8355F #5FB835

tetradic

#355FB8 #B835A1 #B88E35 #35B84D

square

#355FB8 #B835A1 #B88E35 #35B84D

split-complementary

#355FB8 #B84D35 #A1B835

monochromatic

#1A2E59 #274688 #355FB8 #5B80D0 #8AA5DD

Accessibility & contrast

On white

6.03

#355FB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#355FB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FB8

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FB8	#FFFFFF	#000000	##FFFFFF
##355FB8	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E69BB

Deuteranopia (green-blind)

#085DB6

Tritanopia (blue-blind)

#007482

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #355fb8;
/* rgb */ color: rgb(53, 95, 184);
/* oklch */ color: oklch(50.4% 0.149 263.1);

Tailwind

colors: {
  custom: {
    50: '#7c8bce',
    500: '#355fb8',
    950: '#000000',
  },
}

SCSS

$custom: #355fb8;
$custom-light: #7c8bce;
$custom-dark: #000000;

JSON

{
  "hex": "#355fb8",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 184
  },
  "hsl": {
    "h": 220.763,
    "s": 55.274,
    "l": 46.471
  },
  "oklch": {
    "l": 0.50412,
    "c": 0.14851,
    "h": 263.1
  },
  "luminance": 0.12402
}

Semantic roles & 50–950 ramp

primary

#355FB8

secondary

#C7B181

accent

#AF49DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #355FB8

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

Preview Lab → · Contrast checker → · Palette generator →