#133B53#133B53

#133B53 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.7% C 0.061 H 238.8°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX#133B53
RGBrgb(19, 59, 83)
HSLhsl(203, 63%, 20%)
HSVhsv(203, 77%, 33%)
CMYKcmyk(77.1%, 28.9%, 0%, 67.5%)
CIE-LABlab(23.31, -4.79, -18.55)
CIE-LCHlch(23.31, 19.16, 255.53°)
OKLaboklab(33.66% -0.0316 -0.0523)
OKLCHoklch(33.66% 0.061 238.8)
XYZxyz(3.3932, 3.8905, 8.7541)
Luminance0.0389 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#133B53 #532B13
analogous
#13534B #133B53 #131B53
triadic
#133B53 #53133B #3B5313
tetradic
#133B53 #4B1353 #532B13 #1B5313
square
#133B53 #4B1353 #532B13 #1B5313
split-complementary
#133B53 #53131B #534B13
monochromatic
#061219 #081821 #133B53 #1E5E85 #2A82B7

Accessibility & contrast

On white

11.81
#133B53 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.78
#133B53 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B53
11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##133B53#FFFFFF#000000##FFFFFF
##133B531.0011.811.7811.81
#FFFFFF11.811.0021.001.00
#0000001.7821.001.0021.00
##FFFFFF11.811.0021.001.00

Color blindness preview

Protanopia (red-blind)
#303B54
Deuteranopia (green-blind)
#273553
Tritanopia (blue-blind)
#004143
Achromatopsia (no color)
#383838

Design tokens & code

CSS
--color: #133b53;
/* rgb */ color: rgb(19, 59, 83);
/* oklch */ color: oklch(33.7% 0.061 238.8);
Tailwind
colors: {
  custom: {
    50: '#5a7083',
    500: '#133b53',
    950: '#000000',
  },
}
SCSS
$custom: #133b53;
$custom-light: #5a7083;
$custom-dark: #000000;
JSON
{
  "hex": "#133b53",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 83
  },
  "hsl": {
    "h": 202.5,
    "s": 62.745,
    "l": 20
  },
  "oklch": {
    "l": 0.33657,
    "c": 0.06112,
    "h": 238.8
  },
  "luminance": 0.03891
}

Semantic roles & 50–950 ramp

primary
#133B53
secondary
#8B5636
accent
#7F42E6
background
#F5F6F8
surface
#E9ECEF
border
#C5C7CA
text
#04070A
muted
#797A7C

Preview Lab

Preview with #133B53

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

Preview Lab → · Contrast checker → · Palette generator →

#133B53 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva