#133B8E#133B8E

#133B8E is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.1% C 0.145 H 262.4°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX#133B8E
RGBrgb(19, 59, 142)
HSLhsl(220, 76%, 32%)
HSVhsv(220, 87%, 56%)
CMYKcmyk(86.6%, 58.5%, 0%, 44.3%)
CIE-LABlab(27.35, 19.83, -49.72)
CIE-LCHlch(27.35, 53.53, 291.75°)
OKLaboklab(38.07% -0.0191 -0.1437)
OKLCHoklch(38.07% 0.145 262.4)
XYZxyz(6.7132, 5.2185, 26.2394)
Luminance0.0522 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#133B8E #8E6613
analogous
#13798E #133B8E #29138E
triadic
#133B8E #8E133B #3B8E13
tetradic
#133B8E #8E1379 #8E6613 #138E29
square
#133B8E #8E1379 #8E6613 #138E29
split-complementary
#133B8E #8E2913 #798E13
monochromatic
#050E22 #0C2558 #133B8E #1A51C4 #376FE4

Accessibility & contrast

On white

10.27
#133B8E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.04
#133B8E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B8E
10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##133B8E#FFFFFF#000000##FFFFFF
##133B8E1.0010.272.0410.27
#FFFFFF10.271.0021.001.00
#0000002.0421.001.0021.00
##FFFFFF10.271.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004691
Deuteranopia (green-blind)
#003B8C
Tritanopia (blue-blind)
#00505E
Achromatopsia (no color)
#414141

Design tokens & code

CSS
--color: #133b8e;
/* rgb */ color: rgb(19, 59, 142);
/* oklch */ color: oklch(38.1% 0.145 262.4);
Tailwind
colors: {
  custom: {
    50: '#6970b0',
    500: '#133b8e',
    950: '#000000',
  },
}
SCSS
$custom: #133b8e;
$custom-light: #6970b0;
$custom-dark: #000000;
JSON
{
  "hex": "#133b8e",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 142
  },
  "hsl": {
    "h": 220.488,
    "s": 76.398,
    "l": 31.569
  },
  "oklch": {
    "l": 0.38073,
    "c": 0.14498,
    "h": 262.4
  },
  "luminance": 0.05219
}

Semantic roles & 50–950 ramp

primary
#133B8E
secondary
#C2963B
accent
#B535F3
background
#F6F6FA
surface
#ECECF5
border
#C7C7CF
text
#080710
muted
#7A7A7F

Preview Lab

Preview with #133B8E

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

Preview Lab → · Contrast checker → · Palette generator →

#133B8E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva