#355CC0#355CC0

#355CC0 is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.4% C 0.163 H 265.0°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#355CC0
RGB	rgb(53, 92, 192)
HSL	hsl(223, 57%, 48%)
HSV	hsv(223, 72%, 75%)
CMYK	cmyk(72.4%, 52.1%, 0%, 24.7%)
CIE-LAB	lab(41.56, 20.95, -56.53)
CIE-LCH	lch(41.56, 60.28, 290.33°)
OKLab	oklab(50.36% -0.0142 -0.1626)
OKLCH	oklch(50.36% 0.163 265)
XYZ	xyz(14.8064, 12.2154, 51.4364)
Luminance	0.1222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355CC0 #C09935

analogous

#35A2C0 #355CC0 #5335C0

triadic

#355CC0 #C0355C #5CC035

tetradic

#355CC0 #C035A2 #C09935 #35C053

square

#355CC0 #C035A2 #C09935 #35C053

split-complementary

#355CC0 #C05335 #A2C035

monochromatic

#1B2E60 #284590 #355CC0 #5F80D3 #8FA6E0

Accessibility & contrast

On white

6.10

#355CC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#355CC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355CC0

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355CC0	#FFFFFF	#000000	##FFFFFF
##355CC0	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A69C4

Deuteranopia (green-blind)

#005CBE

Tritanopia (blue-blind)

#007485

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #355cc0;
/* rgb */ color: rgb(53, 92, 192);
/* oklch */ color: oklch(50.4% 0.163 265.0);

Tailwind

colors: {
  custom: {
    50: '#7e89d4',
    500: '#355cc0',
    950: '#000000',
  },
}

SCSS

$custom: #355cc0;
$custom-light: #7e89d4;
$custom-dark: #000000;

JSON

{
  "hex": "#355cc0",
  "rgb": {
    "r": 53,
    "g": 92,
    "b": 192
  },
  "hsl": {
    "h": 223.165,
    "s": 56.735,
    "l": 48.039
  },
  "oklch": {
    "l": 0.50364,
    "c": 0.16321,
    "h": 265
  },
  "luminance": 0.12217
}

Semantic roles & 50–950 ramp

primary

#355CC0

secondary

#CBB786

accent

#B548E0

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #355CC0

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

Preview Lab → · Contrast checker → · Palette generator →