#133B7C#133B7C

#133B7C is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.5% C 0.119 H 259.9°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX#133B7C
RGBrgb(19, 59, 124)
HSLhsl(217, 73%, 28%)
HSVhsv(217, 85%, 49%)
CMYKcmyk(84.7%, 52.4%, 0%, 51.4%)
CIE-LABlab(25.92, 12.33, -40.81)
CIE-LCHlch(25.92, 42.63, 286.81°)
OKLaboklab(36.54% -0.021 -0.1175)
OKLCHoklch(36.54% 0.119 259.9)
XYZxyz(5.4693, 4.7209, 19.6879)
Luminance0.0472 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#133B7C #7C5413
analogous
#136F7C #133B7C #1F137C
triadic
#133B7C #7C133B #3B7C13
tetradic
#133B7C #7C136F #7C5413 #137C1F
square
#133B7C #7C136F #7C5413 #137C1F
split-complementary
#133B7C #7C1F13 #6F7C13
monochromatic
#040D1B #0B2247 #133B7C #1B54B1 #2B6FDF

Accessibility & contrast

On white

10.80
#133B7C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.94
#133B7C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B7C
10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##133B7C#FFFFFF#000000##FFFFFF
##133B7C1.0010.801.9410.80
#FFFFFF10.801.0021.001.00
#0000001.9421.001.0021.00
##FFFFFF10.801.0021.001.00

Color blindness preview

Protanopia (red-blind)
#11427E
Deuteranopia (green-blind)
#00397B
Tritanopia (blue-blind)
#004B55
Achromatopsia (no color)
#3D3D3D

Design tokens & code

CSS
--color: #133b7c;
/* rgb */ color: rgb(19, 59, 124);
/* oklch */ color: oklch(36.5% 0.119 259.9);
Tailwind
colors: {
  custom: {
    50: '#6470a2',
    500: '#133b7c',
    950: '#000000',
  },
}
SCSS
$custom: #133b7c;
$custom-light: #6470a2;
$custom-dark: #000000;
JSON
{
  "hex": "#133b7c",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 124
  },
  "hsl": {
    "h": 217.143,
    "s": 73.427,
    "l": 28.039
  },
  "oklch": {
    "l": 0.36543,
    "c": 0.11939,
    "h": 259.9
  },
  "luminance": 0.04722
}

Semantic roles & 50–950 ramp

primary
#133B7C
secondary
#B28439
accent
#AA38F0
background
#F6F6FA
surface
#EBECF4
border
#C6C7CE
text
#06070F
muted
#7A7A7F

Preview Lab

Preview with #133B7C

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

Preview Lab → · Contrast checker → · Palette generator →

#133B7C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva