#355DD1#355DD1

#355DD1 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.9% C 0.185 H 265.8°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#355DD1
RGB	rgb(53, 93, 209)
HSL	hsl(225, 63%, 51%)
HSV	hsv(225, 75%, 82%)
CMYK	cmyk(74.6%, 55.5%, 0%, 18%)
CIE-LAB	lab(43.04, 26.59, -63.94)
CIE-LCH	lch(43.04, 69.25, 292.58°)
OKLab	oklab(51.87% -0.0137 -0.1844)
OKLCH	oklch(51.87% 0.185 265.8)
XYZ	xyz(16.8871, 13.1872, 61.9646)
Luminance	0.1319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355DD1 #D1A935

analogous

#35ABD1 #355DD1 #5B35D1

triadic

#355DD1 #D1355D #5DD135

tetradic

#355DD1 #D135AB #D1A935 #35D15B

square

#355DD1 #D135AB #D1A935 #35D15B

split-complementary

#355DD1 #D15B35 #ABD135

monochromatic

#1A3072 #2546A4 #355DD1 #6785DC #99ADE8

Accessibility & contrast

On white

5.77

#355DD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#355DD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355DD1

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355DD1	#FFFFFF	#000000	##FFFFFF
##355DD1	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD5

Deuteranopia (green-blind)

#005FCF

Tritanopia (blue-blind)

#007A8E

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #355dd1;
/* rgb */ color: rgb(53, 93, 209);
/* oklch */ color: oklch(51.9% 0.185 265.8);

Tailwind

colors: {
  custom: {
    50: '#828ae0',
    500: '#355dd1',
    950: '#000000',
  },
}

SCSS

$custom: #355dd1;
$custom-light: #828ae0;
$custom-dark: #000000;

JSON

{
  "hex": "#355dd1",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 209
  },
  "hsl": {
    "h": 224.615,
    "s": 62.903,
    "l": 51.373
  },
  "oklch": {
    "l": 0.51874,
    "c": 0.18488,
    "h": 265.8
  },
  "luminance": 0.13189
}

Semantic roles & 50–950 ramp

primary

#355DD1

secondary

#D3C28F

accent

#BC42E6

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #355DD1

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

Preview Lab → · Contrast checker → · Palette generator →