#355FA9#355FA9

#355FA9 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.4% C 0.128 H 260.8°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#355FA9
RGB	rgb(53, 95, 169)
HSL	hsl(218, 52%, 44%)
HSV	hsv(218, 69%, 66%)
CMYK	cmyk(68.6%, 43.8%, 0%, 33.7%)
CIE-LAB	lab(40.90, 10.47, -44.09)
CIE-LCH	lch(40.90, 45.32, 283.36°)
OKLab	oklab(49.39% -0.0203 -0.126)
OKLCH	oklch(49.39% 0.128 260.8)
XYZ	xyz(12.7193, 11.8046, 39.1366)
Luminance	0.1181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FA9 #A97F35

analogous

#3599A9 #355FA9 #4535A9

triadic

#355FA9 #A9355F #5FA935

tetradic

#355FA9 #A93599 #A97F35 #35A945

square

#355FA9 #A93599 #A97F35 #35A945

split-complementary

#355FA9 #A94535 #99A935

monochromatic

#182B4C #26457A #355FA9 #527DC9 #81A0D7

Accessibility & contrast

On white

6.25

#355FA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#355FA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FA9

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FA9	#FFFFFF	#000000	##FFFFFF
##355FA9	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C66AC

Deuteranopia (green-blind)

#285BA7

Tritanopia (blue-blind)

#00707C

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #355fa9;
/* rgb */ color: rgb(53, 95, 169);
/* oklch */ color: oklch(49.4% 0.128 260.8);

Tailwind

colors: {
  custom: {
    50: '#798bc3',
    500: '#355fa9',
    950: '#000000',
  },
}

SCSS

$custom: #355fa9;
$custom-light: #798bc3;
$custom-dark: #000000;

JSON

{
  "hex": "#355fa9",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 169
  },
  "hsl": {
    "h": 218.276,
    "s": 52.252,
    "l": 43.529
  },
  "oklch": {
    "l": 0.49385,
    "c": 0.12759,
    "h": 260.8
  },
  "luminance": 0.11806
}

Semantic roles & 50–950 ramp

primary

#355FA9

secondary

#C1A779

accent

#A84CDC

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #355FA9

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

Preview Lab → · Contrast checker → · Palette generator →