#133181#133181

#133181 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.8% C 0.140 H 264.4°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX#133181
RGBrgb(19, 49, 129)
HSLhsl(224, 74%, 29%)
HSVhsv(224, 85%, 51%)
CMYKcmyk(85.3%, 62%, 0%, 49.4%)
CIE-LABlab(23.40, 21.51, -48.06)
CIE-LCHlch(23.40, 52.65, 294.12°)
OKLaboklab(34.76% -0.0135 -0.139)
OKLCHoklch(34.76% 0.14 264.4)
XYZxyz(5.3279, 3.9194, 21.2403)
Luminance0.0392 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#133181 #816313
analogous
#136881 #133181 #2C1381
triadic
#133181 #811331 #318113
tetradic
#133181 #811368 #816313 #13812C
square
#133181 #811368 #816313 #13812C
split-complementary
#133181 #812C13 #688113
monochromatic
#040A1B #0B1D4C #133181 #1B45B6 #2E5FE0

Accessibility & contrast

On white

11.77
#133181 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.78
#133181 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133181
11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##133181#FFFFFF#000000##FFFFFF
##1331811.0011.771.7811.77
#FFFFFF11.771.0021.001.00
#0000001.7821.001.0021.00
##FFFFFF11.771.0021.001.00

Color blindness preview

Protanopia (red-blind)
#003D84
Deuteranopia (green-blind)
#00337F
Tritanopia (blue-blind)
#004654
Achromatopsia (no color)
#383838

Design tokens & code

CSS
--color: #133181;
/* rgb */ color: rgb(19, 49, 129);
/* oklch */ color: oklch(34.8% 0.140 264.4);
Tailwind
colors: {
  custom: {
    50: '#6668a6',
    500: '#133181',
    950: '#000000',
  },
}
SCSS
$custom: #133181;
$custom-light: #6668a6;
$custom-dark: #000000;
JSON
{
  "hex": "#133181",
  "rgb": {
    "r": 19,
    "g": 49,
    "b": 129
  },
  "hsl": {
    "h": 223.636,
    "s": 74.324,
    "l": 29.02
  },
  "oklch": {
    "l": 0.34764,
    "c": 0.13967,
    "h": 264.4
  },
  "luminance": 0.0392
}

Semantic roles & 50–950 ramp

primary
#133181
secondary
#B6943A
accent
#BE37F1
background
#F6F6FA
surface
#EBEBF4
border
#C6C6CE
text
#07060F
muted
#7A7A7F

Preview Lab

Preview with #133181

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

Preview Lab → · Contrast checker → · Palette generator →

#133181 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva