#355CB5#355CB5

#355CB5 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.6% C 0.148 H 264.0°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#355CB5
RGB	rgb(53, 92, 181)
HSL	hsl(222, 55%, 46%)
HSV	hsv(222, 71%, 71%)
CMYK	cmyk(70.7%, 49.2%, 0%, 29%)
CIE-LAB	lab(40.81, 16.86, -51.31)
CIE-LCH	lch(40.81, 54.01, 288.19°)
OKLab	oklab(49.56% -0.0155 -0.1472)
OKLCH	oklch(49.56% 0.148 264)
XYZ	xyz(13.6329, 11.7460, 45.2558)
Luminance	0.1175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355CB5 #B58E35

analogous

#359CB5 #355CB5 #4E35B5

triadic

#355CB5 #B5355C #5CB535

tetradic

#355CB5 #B5359C #B58E35 #35B54E

square

#355CB5 #B5359C #B58E35 #35B54E

split-complementary

#355CB5 #B54E35 #9CB535

monochromatic

#192C56 #274486 #355CB5 #597DCE #88A2DC

Accessibility & contrast

On white

6.27

#355CB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#355CB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355CB5

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355CB5	#FFFFFF	#000000	##FFFFFF
##355CB5	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A66B8

Deuteranopia (green-blind)

#005BB3

Tritanopia (blue-blind)

#007180

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #355cb5;
/* rgb */ color: rgb(53, 92, 181);
/* oklch */ color: oklch(49.6% 0.148 264.0);

Tailwind

colors: {
  custom: {
    50: '#7c89cc',
    500: '#355cb5',
    950: '#000000',
  },
}

SCSS

$custom: #355cb5;
$custom-light: #7c89cc;
$custom-dark: #000000;

JSON

{
  "hex": "#355cb5",
  "rgb": {
    "r": 53,
    "g": 92,
    "b": 181
  },
  "hsl": {
    "h": 221.719,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.49557,
    "c": 0.14805,
    "h": 264
  },
  "luminance": 0.11747
}

Semantic roles & 50–950 ramp

primary

#355CB5

secondary

#C6B180

accent

#B14ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #355CB5

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

Preview Lab → · Contrast checker → · Palette generator →