#355B9A#355B9A

#355B9A is a mid, moderate blue. Relative luminance 0.106; OKLCH L 47.5% C 0.111 H 260.0°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#355B9A
RGB	rgb(53, 91, 154)
HSL	hsl(217, 49%, 41%)
HSV	hsv(217, 66%, 60%)
CMYK	cmyk(65.6%, 40.9%, 0%, 39.6%)
CIE-LAB	lab(38.85, 7.54, -38.44)
CIE-LCH	lch(38.85, 39.17, 281.10°)
OKLab	oklab(47.51% -0.0194 -0.1094)
OKLCH	oklch(47.51% 0.111 260)
XYZ	xyz(11.0399, 10.5711, 32.0242)
Luminance	0.1057 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355B9A #9A7435

analogous

#358D9A #355B9A #42359A

triadic

#355B9A #9A355B #5B9A35

tetradic

#355B9A #9A358D #9A7435 #359A42

square

#355B9A #9A358D #9A7435 #359A42

split-complementary

#355B9A #9A4235 #8D9A35

monochromatic

#16253F #25406C #355B9A #4B77C1 #799AD1

Accessibility & contrast

On white

6.74

#355B9A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#355B9A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355B9A

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355B9A	#FFFFFF	#000000	##FFFFFF
##355B9A	1.00	6.74	3.11	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F619C

Deuteranopia (green-blind)

#305799

Tritanopia (blue-blind)

#006973

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #355b9a;
/* rgb */ color: rgb(53, 91, 154);
/* oklch */ color: oklch(47.5% 0.111 260.0);

Tailwind

colors: {
  custom: {
    50: '#7789b8',
    500: '#355b9a',
    950: '#000000',
  },
}

SCSS

$custom: #355b9a;
$custom-light: #7789b8;
$custom-dark: #000000;

JSON

{
  "hex": "#355b9a",
  "rgb": {
    "r": 53,
    "g": 91,
    "b": 154
  },
  "hsl": {
    "h": 217.426,
    "s": 48.792,
    "l": 40.588
  },
  "oklch": {
    "l": 0.47508,
    "c": 0.11113,
    "h": 260
  },
  "luminance": 0.10572
}

Semantic roles & 50–950 ramp

primary

#355B9A

secondary

#B99E71

accent

#A54FD8

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #355B9A

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

Preview Lab → · Contrast checker → · Palette generator →