#133A8E#133A8E

#133A8E is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.9% C 0.146 H 262.8°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX#133A8E
RGBrgb(19, 58, 142)
HSLhsl(221, 76%, 32%)
HSVhsv(221, 87%, 56%)
CMYKcmyk(86.6%, 59.2%, 0%, 44.3%)
CIE-LABlab(27.06, 20.53, -50.18)
CIE-LCHlch(27.06, 54.22, 292.25°)
OKLaboklab(37.86% -0.0184 -0.1451)
OKLCHoklch(37.86% 0.146 262.8)
XYZxyz(6.6623, 5.1167, 26.2224)
Luminance0.0512 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#133A8E #8E6713
analogous
#13788E #133A8E #2A138E
triadic
#133A8E #8E133A #3A8E13
tetradic
#133A8E #8E1378 #8E6713 #138E2A
square
#133A8E #8E1378 #8E6713 #138E2A
split-complementary
#133A8E #8E2A13 #788E13
monochromatic
#050E22 #0C2458 #133A8E #1A50C4 #376EE4

Accessibility & contrast

On white

10.38
#133A8E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.02
#133A8E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A8E
10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##133A8E#FFFFFF#000000##FFFFFF
##133A8E1.0010.382.0210.38
#FFFFFF10.381.0021.001.00
#0000002.0221.001.0021.00
##FFFFFF10.381.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004691
Deuteranopia (green-blind)
#003B8C
Tritanopia (blue-blind)
#004F5E
Achromatopsia (no color)
#404040

Design tokens & code

CSS
--color: #133a8e;
/* rgb */ color: rgb(19, 58, 142);
/* oklch */ color: oklch(37.9% 0.146 262.8);
Tailwind
colors: {
  custom: {
    50: '#696fb0',
    500: '#133a8e',
    950: '#000000',
  },
}
SCSS
$custom: #133a8e;
$custom-light: #696fb0;
$custom-dark: #000000;
JSON
{
  "hex": "#133a8e",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 142
  },
  "hsl": {
    "h": 220.976,
    "s": 76.398,
    "l": 31.569
  },
  "oklch": {
    "l": 0.3786,
    "c": 0.14627,
    "h": 262.8
  },
  "luminance": 0.05118
}

Semantic roles & 50–950 ramp

primary
#133A8E
secondary
#C2973B
accent
#B735F3
background
#F6F6FA
surface
#ECECF5
border
#C7C7CF
text
#080710
muted
#7A7A7F

Preview Lab

Preview with #133A8E

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

Preview Lab → · Contrast checker → · Palette generator →

#133A8E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva