#355EB9#355EB9

#355EB9 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.3% C 0.151 H 263.6°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX#355EB9
RGBrgb(53, 94, 185)
HSLhsl(221, 55%, 47%)
HSVhsv(221, 71%, 73%)
CMYKcmyk(71.4%, 49.2%, 0%, 27.5%)
CIE-LABlab(41.63, 17.05, -52.33)
CIE-LCHlch(41.63, 55.03, 288.05°)
OKLaboklab(50.27% -0.0167 -0.1502)
OKLCHoklch(50.27% 0.151 263.6)
XYZxyz(14.2248, 12.2636, 47.5070)
Luminance0.1226 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#355EB9 #B99035
analogous
#35A0B9 #355EB9 #4E35B9
triadic
#355EB9 #B9355E #5EB935
tetradic
#355EB9 #B935A0 #B99035 #35B94E
square
#355EB9 #B935A0 #B99035 #35B94E
split-complementary
#355EB9 #B94E35 #A0B935
monochromatic
#1A2E5A #274689 #355EB9 #5B7FD0 #8BA4DE

Accessibility & contrast

On white

6.08
#355EB9 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.45
#355EB9 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355EB9
6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##355EB9#FFFFFF#000000##FFFFFF
##355EB91.006.083.456.08
#FFFFFF6.081.0021.001.00
#0000003.4521.001.0021.00
##FFFFFF6.081.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2B69BC
Deuteranopia (green-blind)
#005DB7
Tritanopia (blue-blind)
#007382
Achromatopsia (no color)
#626262

Design tokens & code

CSS
--color: #355eb9;
/* rgb */ color: rgb(53, 94, 185);
/* oklch */ color: oklch(50.3% 0.151 263.6);
Tailwind
colors: {
  custom: {
    50: '#7d8bcf',
    500: '#355eb9',
    950: '#000000',
  },
}
SCSS
$custom: #355eb9;
$custom-light: #7d8bcf;
$custom-dark: #000000;
JSON
{
  "hex": "#355eb9",
  "rgb": {
    "r": 53,
    "g": 94,
    "b": 185
  },
  "hsl": {
    "h": 221.364,
    "s": 55.462,
    "l": 46.667
  },
  "oklch": {
    "l": 0.5027,
    "c": 0.15112,
    "h": 263.6
  },
  "luminance": 0.12265
}

Semantic roles & 50–950 ramp

primary
#355EB9
secondary
#C8B282
accent
#B049DF
background
#F8F8FC
surface
#EFF0F9
border
#CACBD2
text
#0B0B14
muted
#7C7C82

Preview Lab

Preview with #355EB9

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

Preview Lab → · Contrast checker → · Palette generator →

#355EB9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva