#355FB5#355FB5

#355FB5 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.2% C 0.144 H 262.7°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#355FB5
RGB	rgb(53, 95, 181)
HSL	hsl(220, 55%, 46%)
HSV	hsv(220, 71%, 71%)
CMYK	cmyk(70.7%, 47.5%, 0%, 29%)
CIE-LAB	lab(41.65, 14.92, -49.95)
CIE-LCH	lch(41.65, 52.13, 286.63°)
OKLab	oklab(50.2% -0.0182 -0.1432)
OKLCH	oklch(50.2% 0.144 262.7)
XYZ	xyz(13.8979, 12.2761, 45.3442)
Luminance	0.1228 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FB5 #B58B35

analogous

#359FB5 #355FB5 #4B35B5

triadic

#355FB5 #B5355F #5FB535

tetradic

#355FB5 #B5359F #B58B35 #35B54B

square

#355FB5 #B5359F #B58B35 #35B54B

split-complementary

#355FB5 #B54B35 #9FB535

monochromatic

#192D56 #274686 #355FB5 #597FCE #88A4DC

Accessibility & contrast

On white

6.08

#355FB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#355FB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FB5

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FB5	#FFFFFF	#000000	##FFFFFF
##355FB5	1.00	6.08	3.46	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3169B8

Deuteranopia (green-blind)

#125DB3

Tritanopia (blue-blind)

#007381

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #355fb5;
/* rgb */ color: rgb(53, 95, 181);
/* oklch */ color: oklch(50.2% 0.144 262.7);

Tailwind

colors: {
  custom: {
    50: '#7c8bcc',
    500: '#355fb5',
    950: '#000000',
  },
}

SCSS

$custom: #355fb5;
$custom-light: #7c8bcc;
$custom-dark: #000000;

JSON

{
  "hex": "#355fb5",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 181
  },
  "hsl": {
    "h": 220.313,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.50201,
    "c": 0.14435,
    "h": 262.7
  },
  "luminance": 0.12277
}

Semantic roles & 50–950 ramp

primary

#355FB5

secondary

#C6AF80

accent

#AD4ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #355FB5

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

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