#355FB1#355FB1

#355FB1 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 49.9% C 0.139 H 262.2°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#355FB1
RGB	rgb(53, 95, 177)
HSL	hsl(220, 54%, 45%)
HSV	hsv(220, 70%, 69%)
CMYK	cmyk(70.1%, 46.3%, 0%, 30.6%)
CIE-LAB	lab(41.40, 13.43, -48.02)
CIE-LCH	lch(41.40, 49.86, 285.63°)
OKLab	oklab(49.92% -0.0189 -0.1375)
OKLCH	oklch(49.92% 0.139 262.2)
XYZ	xyz(13.4934, 12.1142, 43.2136)
Luminance	0.1212 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FB1 #B18735

analogous

#359DB1 #355FB1 #4935B1

triadic

#355FB1 #B1355F #5FB135

tetradic

#355FB1 #B1359D #B18735 #35B149

square

#355FB1 #B1359D #B18735 #35B149

split-complementary

#355FB1 #B14935 #9DB135

monochromatic

#192C53 #274682 #355FB1 #577FCD #86A2DB

Accessibility & contrast

On white

6.13

#355FB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#355FB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FB1

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FB1	#FFFFFF	#000000	##FFFFFF
##355FB1	1.00	6.13	3.42	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3568B4

Deuteranopia (green-blind)

#1C5CAF

Tritanopia (blue-blind)

#00727F

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #355fb1;
/* rgb */ color: rgb(53, 95, 177);
/* oklch */ color: oklch(49.9% 0.139 262.2);

Tailwind

colors: {
  custom: {
    50: '#7b8bc9',
    500: '#355fb1',
    950: '#000000',
  },
}

SCSS

$custom: #355fb1;
$custom-light: #7b8bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#355fb1",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 177
  },
  "hsl": {
    "h": 219.677,
    "s": 53.913,
    "l": 45.098
  },
  "oklch": {
    "l": 0.49924,
    "c": 0.13879,
    "h": 262.2
  },
  "luminance": 0.12116
}

Semantic roles & 50–950 ramp

primary

#355FB1

secondary

#C4AC7D

accent

#AC4BDD

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #355FB1

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

Preview Lab → · Contrast checker → · Palette generator →