#355AB5#355AB5

#355AB5 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.1% C 0.151 H 264.8°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#355AB5
RGB	rgb(53, 90, 181)
HSL	hsl(223, 55%, 46%)
HSV	hsv(223, 71%, 71%)
CMYK	cmyk(70.7%, 50.3%, 0%, 29%)
CIE-LAB	lab(40.25, 18.16, -52.21)
CIE-LCH	lch(40.25, 55.28, 289.18°)
OKLab	oklab(49.13% -0.0137 -0.1499)
OKLCH	oklch(49.13% 0.151 264.8)
XYZ	xyz(13.4619, 11.4040, 45.1988)
Luminance	0.1140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355AB5 #B59035

analogous

#359AB5 #355AB5 #5035B5

triadic

#355AB5 #B5355A #5AB535

tetradic

#355AB5 #B5359A #B59035 #35B550

square

#355AB5 #B5359A #B59035 #35B550

split-complementary

#355AB5 #B55035 #9AB535

monochromatic

#192B56 #274286 #355AB5 #597BCE #88A0DC

Accessibility & contrast

On white

6.40

#355AB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#355AB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355AB5

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355AB5	#FFFFFF	#000000	##FFFFFF
##355AB5	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2565B8

Deuteranopia (green-blind)

#0059B3

Tritanopia (blue-blind)

#00707F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #355ab5;
/* rgb */ color: rgb(53, 90, 181);
/* oklch */ color: oklch(49.1% 0.151 264.8);

Tailwind

colors: {
  custom: {
    50: '#7c88cc',
    500: '#355ab5',
    950: '#000000',
  },
}

SCSS

$custom: #355ab5;
$custom-light: #7c88cc;
$custom-dark: #000000;

JSON

{
  "hex": "#355ab5",
  "rgb": {
    "r": 53,
    "g": 90,
    "b": 181
  },
  "hsl": {
    "h": 222.656,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.49132,
    "c": 0.15054,
    "h": 264.8
  },
  "luminance": 0.11405
}

Semantic roles & 50–950 ramp

primary

#355AB5

secondary

#C6B280

accent

#B34ADE

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #355AB5

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

Preview Lab → · Contrast checker → · Palette generator →