#355EB5#355EB5

#355EB5 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.0% C 0.146 H 263.2°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#355EB5
RGB	rgb(53, 94, 181)
HSL	hsl(221, 55%, 46%)
HSV	hsv(221, 71%, 71%)
CMYK	cmyk(70.7%, 48.1%, 0%, 29%)
CIE-LAB	lab(41.37, 15.56, -50.41)
CIE-LCH	lch(41.37, 52.76, 287.16°)
OKLab	oklab(49.99% -0.0173 -0.1446)
OKLCH	oklch(49.99% 0.146 263.2)
XYZ	xyz(13.8084, 12.0971, 45.3143)
Luminance	0.1210 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355EB5 #B58C35

analogous

#359EB5 #355EB5 #4C35B5

triadic

#355EB5 #B5355E #5EB535

tetradic

#355EB5 #B5359E #B58C35 #35B54C

square

#355EB5 #B5359E #B58C35 #35B54C

split-complementary

#355EB5 #B54C35 #9EB535

monochromatic

#192D56 #274586 #355EB5 #597ECE #88A3DC

Accessibility & contrast

On white

6.14

#355EB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#355EB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355EB5

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355EB5	#FFFFFF	#000000	##FFFFFF
##355EB5	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F68B8

Deuteranopia (green-blind)

#0D5CB3

Tritanopia (blue-blind)

#007281

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #355eb5;
/* rgb */ color: rgb(53, 94, 181);
/* oklch */ color: oklch(50.0% 0.146 263.2);

Tailwind

colors: {
  custom: {
    50: '#7c8bcc',
    500: '#355eb5',
    950: '#000000',
  },
}

SCSS

$custom: #355eb5;
$custom-light: #7c8bcc;
$custom-dark: #000000;

JSON

{
  "hex": "#355eb5",
  "rgb": {
    "r": 53,
    "g": 94,
    "b": 181
  },
  "hsl": {
    "h": 220.781,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.49985,
    "c": 0.14558,
    "h": 263.2
  },
  "luminance": 0.12098
}

Semantic roles & 50–950 ramp

primary

#355EB5

secondary

#C6B080

accent

#AF4ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #355EB5

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

Preview Lab → · Contrast checker → · Palette generator →