#355CB2#355CB2

#355CB2 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.3% C 0.144 H 263.6°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#355CB2
RGB	rgb(53, 92, 178)
HSL	hsl(221, 54%, 45%)
HSV	hsv(221, 70%, 70%)
CMYK	cmyk(70.2%, 48.3%, 0%, 30.2%)
CIE-LAB	lab(40.61, 15.75, -49.87)
CIE-LCH	lch(40.61, 52.29, 287.53°)
OKLab	oklab(49.34% -0.0159 -0.143)
OKLCH	oklch(49.34% 0.144 263.6)
XYZ	xyz(13.3284, 11.6242, 43.6521)
Luminance	0.1163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355CB2 #B28B35

analogous

#359AB2 #355CB2 #4C35B2

triadic

#355CB2 #B2355C #5CB235

tetradic

#355CB2 #B2359A #B28B35 #35B24C

square

#355CB2 #B2359A #B28B35 #35B24C

split-complementary

#355CB2 #B24C35 #9AB235

monochromatic

#192B54 #274483 #355CB2 #577CCD #86A1DB

Accessibility & contrast

On white

6.32

#355CB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#355CB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355CB2

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355CB2	#FFFFFF	#000000	##FFFFFF
##355CB2	1.00	6.32	3.33	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E66B5

Deuteranopia (green-blind)

#0C5AB0

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #355cb2;
/* rgb */ color: rgb(53, 92, 178);
/* oklch */ color: oklch(49.3% 0.144 263.6);

Tailwind

colors: {
  custom: {
    50: '#7b89ca',
    500: '#355cb2',
    950: '#000000',
  },
}

SCSS

$custom: #355cb2;
$custom-light: #7b89ca;
$custom-dark: #000000;

JSON

{
  "hex": "#355cb2",
  "rgb": {
    "r": 53,
    "g": 92,
    "b": 178
  },
  "hsl": {
    "h": 221.28,
    "s": 54.113,
    "l": 45.294
  },
  "oklch": {
    "l": 0.49343,
    "c": 0.14386,
    "h": 263.6
  },
  "luminance": 0.11626
}

Semantic roles & 50–950 ramp

primary

#355CB2

secondary

#C5AF7E

accent

#B04ADD

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #355CB2

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

Preview Lab → · Contrast checker → · Palette generator →