#355CD3#355CD3

#355CD3 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.8% C 0.189 H 266.1°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#355CD3
RGB	rgb(53, 92, 211)
HSL	hsl(225, 64%, 52%)
HSV	hsv(225, 75%, 83%)
CMYK	cmyk(74.9%, 56.4%, 0%, 17.3%)
CIE-LAB	lab(42.93, 27.97, -65.27)
CIE-LCH	lch(42.93, 71.01, 293.19°)
OKLab	oklab(51.84% -0.0128 -0.1883)
OKLCH	oklch(51.84% 0.189 266.1)
XYZ	xyz(17.0491, 13.1124, 63.2478)
Luminance	0.1311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355CD3 #D3AC35

analogous

#35ABD3 #355CD3 #5D35D3

triadic

#355CD3 #D3355C #5CD335

tetradic

#355CD3 #D335AB #D3AC35 #35D35D

square

#355CD3 #D335AB #D3AC35 #35D35D

split-complementary

#355CD3 #D35D35 #ABD335

monochromatic

#193074 #2444A7 #355CD3 #6785DE #9AADE9

Accessibility & contrast

On white

5.80

#355CD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#355CD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355CD3

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355CD3	#FFFFFF	#000000	##FFFFFF
##355CD3	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD7

Deuteranopia (green-blind)

#005ED1

Tritanopia (blue-blind)

#007A8E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #355cd3;
/* rgb */ color: rgb(53, 92, 211);
/* oklch */ color: oklch(51.8% 0.189 266.1);

Tailwind

colors: {
  custom: {
    50: '#8289e1',
    500: '#355cd3',
    950: '#000000',
  },
}

SCSS

$custom: #355cd3;
$custom-light: #8289e1;
$custom-dark: #000000;

JSON

{
  "hex": "#355cd3",
  "rgb": {
    "r": 53,
    "g": 92,
    "b": 211
  },
  "hsl": {
    "h": 225.19,
    "s": 64.228,
    "l": 51.765
  },
  "oklch": {
    "l": 0.51837,
    "c": 0.18873,
    "h": 266.1
  },
  "luminance": 0.13114
}

Semantic roles & 50–950 ramp

primary

#355CD3

secondary

#D5C38F

accent

#BE41E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #355CD3

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

Preview Lab → · Contrast checker → · Palette generator →