#355EC3#355EC3

#355EC3 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.0% C 0.165 H 264.6°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#355EC3
RGB	rgb(53, 94, 195)
HSL	hsl(223, 57%, 49%)
HSV	hsv(223, 73%, 76%)
CMYK	cmyk(72.8%, 51.8%, 0%, 23.5%)
CIE-LAB	lab(42.31, 20.76, -57.05)
CIE-LCH	lch(42.31, 60.72, 290.00°)
OKLab	oklab(51% -0.0156 -0.1641)
OKLCH	oklch(51% 0.165 264.6)
XYZ	xyz(15.3178, 12.7008, 53.2634)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355EC3 #C39A35

analogous

#35A5C3 #355EC3 #5335C3

triadic

#355EC3 #C3355E #5EC335

tetradic

#355EC3 #C335A5 #C39A35 #35C353

square

#355EC3 #C335A5 #C39A35 #35C353

split-complementary

#355EC3 #C35335 #A5C335

monochromatic

#1B3063 #284793 #355EC3 #6182D4 #91A8E1

Accessibility & contrast

On white

5.93

#355EC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#355EC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355EC3

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355EC3	#FFFFFF	#000000	##FFFFFF
##355EC3	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C6BC7

Deuteranopia (green-blind)

#005EC1

Tritanopia (blue-blind)

#007687

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #355ec3;
/* rgb */ color: rgb(53, 94, 195);
/* oklch */ color: oklch(51.0% 0.165 264.6);

Tailwind

colors: {
  custom: {
    50: '#7f8bd6',
    500: '#355ec3',
    950: '#000000',
  },
}

SCSS

$custom: #355ec3;
$custom-light: #7f8bd6;
$custom-dark: #000000;

JSON

{
  "hex": "#355ec3",
  "rgb": {
    "r": 53,
    "g": 94,
    "b": 195
  },
  "hsl": {
    "h": 222.676,
    "s": 57.258,
    "l": 48.627
  },
  "oklch": {
    "l": 0.51001,
    "c": 0.16485,
    "h": 264.6
  },
  "luminance": 0.12702
}

Semantic roles & 50–950 ramp

primary

#355EC3

secondary

#CCB888

accent

#B447E1

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #355EC3

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

Preview Lab → · Contrast checker → · Palette generator →