#355AA9#355AA9

#355AA9 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.3% C 0.134 H 263.4°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#355AA9
RGB	rgb(53, 90, 169)
HSL	hsl(221, 52%, 44%)
HSV	hsv(221, 69%, 66%)
CMYK	cmyk(68.6%, 46.7%, 0%, 33.7%)
CIE-LAB	lab(39.47, 13.71, -46.39)
CIE-LCH	lch(39.47, 48.38, 286.46°)
OKLab	oklab(48.28% -0.0154 -0.1328)
OKLCH	oklch(48.28% 0.134 263.4)
XYZ	xyz(12.2833, 10.9326, 38.9913)
Luminance	0.1093 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355AA9 #A98435

analogous

#3594A9 #355AA9 #4A35A9

triadic

#355AA9 #A9355A #5AA935

tetradic

#355AA9 #A93594 #A98435 #35A94A

square

#355AA9 #A93594 #A98435 #35A94A

split-complementary

#355AA9 #A94A35 #94A935

monochromatic

#18284C #26417A #355AA9 #5278C9 #819DD7

Accessibility & contrast

On white

6.59

#355AA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#355AA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355AA9

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355AA9	#FFFFFF	#000000	##FFFFFF
##355AA9	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3263AC

Deuteranopia (green-blind)

#1A58A7

Tritanopia (blue-blind)

#006C79

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #355aa9;
/* rgb */ color: rgb(53, 90, 169);
/* oklch */ color: oklch(48.3% 0.134 263.4);

Tailwind

colors: {
  custom: {
    50: '#7a88c3',
    500: '#355aa9',
    950: '#000000',
  },
}

SCSS

$custom: #355aa9;
$custom-light: #7a88c3;
$custom-dark: #000000;

JSON

{
  "hex": "#355aa9",
  "rgb": {
    "r": 53,
    "g": 90,
    "b": 169
  },
  "hsl": {
    "h": 220.862,
    "s": 52.252,
    "l": 43.529
  },
  "oklch": {
    "l": 0.48279,
    "c": 0.13369,
    "h": 263.4
  },
  "luminance": 0.10934
}

Semantic roles & 50–950 ramp

primary

#355AA9

secondary

#C1AA79

accent

#AE4CDC

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #355AA9

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

Preview Lab → · Contrast checker → · Palette generator →