#355AA5#355AA5

#355AA5 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.0% C 0.128 H 262.8°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#355AA5
RGB	rgb(53, 90, 165)
HSL	hsl(220, 51%, 43%)
HSV	hsv(220, 68%, 65%)
CMYK	cmyk(67.9%, 45.5%, 0%, 35.3%)
CIE-LAB	lab(39.22, 12.23, -44.42)
CIE-LCH	lch(39.22, 46.07, 285.39°)
OKLab	oklab(48.01% -0.0161 -0.127)
OKLCH	oklch(48.01% 0.128 262.8)
XYZ	xyz(11.9135, 10.7847, 37.0438)
Luminance	0.1079 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355AA5 #A58035

analogous

#3592A5 #355AA5 #4835A5

triadic

#355AA5 #A5355A #5AA535

tetradic

#355AA5 #A53592 #A58035 #35A548

square

#355AA5 #A53592 #A58035 #35A548

split-complementary

#355AA5 #A54835 #92A535

monochromatic

#172748 #264177 #355AA5 #5077C7 #7F9BD6

Accessibility & contrast

On white

6.65

#355AA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#355AA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355AA5

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355AA5	#FFFFFF	#000000	##FFFFFF
##355AA5	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3562A8

Deuteranopia (green-blind)

#2158A3

Tritanopia (blue-blind)

#006B77

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #355aa5;
/* rgb */ color: rgb(53, 90, 165);
/* oklch */ color: oklch(48.0% 0.128 262.8);

Tailwind

colors: {
  custom: {
    50: '#7988c0',
    500: '#355aa5',
    950: '#000000',
  },
}

SCSS

$custom: #355aa5;
$custom-light: #7988c0;
$custom-dark: #000000;

JSON

{
  "hex": "#355aa5",
  "rgb": {
    "r": 53,
    "g": 90,
    "b": 165
  },
  "hsl": {
    "h": 220.179,
    "s": 51.376,
    "l": 42.745
  },
  "oklch": {
    "l": 0.48005,
    "c": 0.12803,
    "h": 262.8
  },
  "luminance": 0.10786
}

Semantic roles & 50–950 ramp

primary

#355AA5

secondary

#BFA777

accent

#AC4DDB

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #355AA5

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

Preview Lab → · Contrast checker → · Palette generator →