#355ECD#355ECD

#355ECD is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.8% C 0.178 H 265.3°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#355ECD
RGB	rgb(53, 94, 205)
HSL	hsl(224, 60%, 51%)
HSV	hsv(224, 74%, 80%)
CMYK	cmyk(74.1%, 54.1%, 0%, 19.6%)
CIE-LAB	lab(43.02, 24.47, -61.69)
CIE-LCH	lch(43.02, 66.36, 291.64°)
OKLab	oklab(51.76% -0.0147 -0.1777)
OKLCH	oklch(51.76% 0.178 265.3)
XYZ	xyz(16.4865, 13.1683, 59.4186)
Luminance	0.1317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355ECD #CDA435

analogous

#35AACD #355ECD #5835CD

triadic

#355ECD #CD355E #5ECD35

tetradic

#355ECD #CD35AA #CDA435 #35CD58

square

#355ECD #CD35AA #CDA435 #35CD58

split-complementary

#355ECD #CD5835 #AACD35

monochromatic

#1B316D #27479E #355ECD #6685D9 #97ACE5

Accessibility & contrast

On white

5.78

#355ECD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#355ECD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355ECD

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355ECD	#FFFFFF	#000000	##FFFFFF
##355ECD	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD1

Deuteranopia (green-blind)

#005FCB

Tritanopia (blue-blind)

#00798C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #355ecd;
/* rgb */ color: rgb(53, 94, 205);
/* oklch */ color: oklch(51.8% 0.178 265.3);

Tailwind

colors: {
  custom: {
    50: '#818bdd',
    500: '#355ecd',
    950: '#000000',
  },
}

SCSS

$custom: #355ecd;
$custom-light: #818bdd;
$custom-dark: #000000;

JSON

{
  "hex": "#355ecd",
  "rgb": {
    "r": 53,
    "g": 94,
    "b": 205
  },
  "hsl": {
    "h": 223.816,
    "s": 60.317,
    "l": 50.588
  },
  "oklch": {
    "l": 0.51761,
    "c": 0.17833,
    "h": 265.3
  },
  "luminance": 0.1317
}

Semantic roles & 50–950 ramp

primary

#355ECD

secondary

#D1BE8D

accent

#B944E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #355ECD

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

Preview Lab → · Contrast checker → · Palette generator →