#133A7D#133A7D

#133A7D is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.4% C 0.122 H 260.5°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX#133A7D
RGBrgb(19, 58, 125)
HSLhsl(218, 74%, 28%)
HSVhsv(218, 85%, 49%)
CMYKcmyk(84.8%, 53.6%, 0%, 51%)
CIE-LABlab(25.70, 13.45, -41.81)
CIE-LCHlch(25.70, 43.92, 287.84°)
OKLaboklab(36.39% -0.0201 -0.1205)
OKLCHoklch(36.39% 0.122 260.5)
XYZxyz(5.4819, 4.6446, 20.0056)
Luminance0.0464 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#133A7D #7D5613
analogous
#136F7D #133A7D #21137D
triadic
#133A7D #7D133A #3A7D13
tetradic
#133A7D #7D136F #7D5613 #137D21
square
#133A7D #7D136F #7D5613 #137D21
split-complementary
#133A7D #7D2113 #6F7D13
monochromatic
#040C1B #0B2148 #133A7D #1B53B2 #2C6EDF

Accessibility & contrast

On white

10.89
#133A7D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.93
#133A7D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A7D
10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##133A7D#FFFFFF#000000##FFFFFF
##133A7D1.0010.891.9310.89
#FFFFFF10.891.0021.001.00
#0000001.9321.001.0021.00
##FFFFFF10.891.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0C427F
Deuteranopia (green-blind)
#00387C
Tritanopia (blue-blind)
#004A55
Achromatopsia (no color)
#3D3D3D

Design tokens & code

CSS
--color: #133a7d;
/* rgb */ color: rgb(19, 58, 125);
/* oklch */ color: oklch(36.4% 0.122 260.5);
Tailwind
colors: {
  custom: {
    50: '#656fa3',
    500: '#133a7d',
    950: '#000000',
  },
}
SCSS
$custom: #133a7d;
$custom-light: #656fa3;
$custom-dark: #000000;
JSON
{
  "hex": "#133a7d",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 125
  },
  "hsl": {
    "h": 217.925,
    "s": 73.611,
    "l": 28.235
  },
  "oklch": {
    "l": 0.36393,
    "c": 0.12214,
    "h": 260.5
  },
  "luminance": 0.04645
}

Semantic roles & 50–950 ramp

primary
#133A7D
secondary
#B38639
accent
#AC38F0
background
#F6F6FA
surface
#EBECF4
border
#C6C7CE
text
#06070F
muted
#7A7A7F

Preview Lab

Preview with #133A7D

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

Preview Lab → · Contrast checker → · Palette generator →

#133A7D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva