#133A57#133A57

#133A57 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.6% C 0.067 H 244.4°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX#133A57
RGBrgb(19, 58, 87)
HSLhsl(206, 64%, 21%)
HSVhsv(206, 78%, 34%)
CMYKcmyk(78.2%, 33.3%, 0%, 65.9%)
CIE-LABlab(23.18, -2.50, -21.39)
CIE-LCHlch(23.18, 21.53, 263.33°)
OKLaboklab(33.63% -0.029 -0.0605)
OKLCHoklch(33.63% 0.067 244.4)
XYZxyz(3.5013, 3.8523, 9.5740)
Luminance0.0385 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#133A57 #573013
analogous
#135752 #133A57 #131857
triadic
#133A57 #57133A #3A5713
tetradic
#133A57 #521357 #573013 #185713
square
#133A57 #521357 #573013 #185713
split-complementary
#133A57 #571318 #575213
monochromatic
#051119 #081925 #133A57 #1E5B89 #297DBB

Accessibility & contrast

On white

11.86
#133A57 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.77
#133A57 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A57
11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##133A57#FFFFFF#000000##FFFFFF
##133A571.0011.861.7711.86
#FFFFFF11.861.0021.001.00
#0000001.7721.001.0021.00
##FFFFFF11.861.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2D3B58
Deuteranopia (green-blind)
#233456
Tritanopia (blue-blind)
#004144
Achromatopsia (no color)
#373737

Design tokens & code

CSS
--color: #133a57;
/* rgb */ color: rgb(19, 58, 87);
/* oklch */ color: oklch(33.6% 0.067 244.4);
Tailwind
colors: {
  custom: {
    50: '#5b6f86',
    500: '#133a57',
    950: '#000000',
  },
}
SCSS
$custom: #133a57;
$custom-light: #5b6f86;
$custom-dark: #000000;
JSON
{
  "hex": "#133a57",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 87
  },
  "hsl": {
    "h": 205.588,
    "s": 64.151,
    "l": 20.784
  },
  "oklch": {
    "l": 0.33625,
    "c": 0.06714,
    "h": 244.4
  },
  "luminance": 0.03853
}

Semantic roles & 50–950 ramp

primary
#133A57
secondary
#8F5C36
accent
#8841E7
background
#F5F6F8
surface
#E9ECEF
border
#C5C7CA
text
#04070B
muted
#797A7C

Preview Lab

Preview with #133A57

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

Preview Lab → · Contrast checker → · Palette generator →

#133A57 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva