#3550B5#3550B5

#3550B5 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.1% C 0.163 H 268.2°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX#3550B5
RGBrgb(53, 80, 181)
HSLhsl(227, 55%, 46%)
HSVhsv(227, 71%, 71%)
CMYKcmyk(70.7%, 55.8%, 0%, 29%)
CIE-LABlab(37.53, 24.70, -56.61)
CIE-LCHlch(37.53, 61.76, 293.57°)
OKLaboklab(47.08% -0.0052 -0.163)
OKLCHoklch(47.08% 0.163 268.2)
XYZxyz(12.6745, 9.8291, 44.9364)
Luminance0.0983 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3550B5 #B59A35
analogous
#3590B5 #3550B5 #5A35B5
triadic
#3550B5 #B53550 #50B535
tetradic
#3550B5 #B53590 #B59A35 #35B55A
square
#3550B5 #B53590 #B59A35 #35B55A
split-complementary
#3550B5 #B55A35 #90B535
monochromatic
#192656 #273B86 #3550B5 #5972CE #889ADC

Accessibility & contrast

On white

7.08
#3550B5 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.97
#3550B5 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3550B5
7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3550B5#FFFFFF#000000##FFFFFF
##3550B51.007.082.977.08
#FFFFFF7.081.0021.001.00
#0000002.9721.001.0021.00
##FFFFFF7.081.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005EB8
Deuteranopia (green-blind)
#0053B3
Tritanopia (blue-blind)
#00697A
Achromatopsia (no color)
#585858

Design tokens & code

CSS
--color: #3550b5;
/* rgb */ color: rgb(53, 80, 181);
/* oklch */ color: oklch(47.1% 0.163 268.2);
Tailwind
colors: {
  custom: {
    50: '#7d80cc',
    500: '#3550b5',
    950: '#000000',
  },
}
SCSS
$custom: #3550b5;
$custom-light: #7d80cc;
$custom-dark: #000000;
JSON
{
  "hex": "#3550b5",
  "rgb": {
    "r": 53,
    "g": 80,
    "b": 181
  },
  "hsl": {
    "h": 227.344,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.47075,
    "c": 0.16309,
    "h": 268.2
  },
  "luminance": 0.0983
}

Semantic roles & 50–950 ramp

primary
#3550B5
secondary
#C6B780
accent
#BF4ADE
background
#F8F7FC
surface
#EFEEF9
border
#CAC9D2
text
#0B0A13
muted
#7C7C82

Preview Lab

Preview with #3550B5

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

Preview Lab → · Contrast checker → · Palette generator →

#3550B5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva