#133F7F#133F7F

#133F7F is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.7% C 0.119 H 258.5°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX#133F7F
RGBrgb(19, 63, 127)
HSLhsl(216, 74%, 29%)
HSVhsv(216, 85%, 50%)
CMYKcmyk(85%, 50.4%, 0%, 50.2%)
CIE-LABlab(27.37, 10.77, -40.37)
CIE-LCHlch(27.37, 41.78, 284.94°)
OKLaboklab(37.72% -0.0237 -0.1161)
OKLCHoklch(37.72% 0.119 258.5)
XYZxyz(5.8754, 5.2250, 20.7734)
Luminance0.0523 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#133F7F #7F5313
analogous
#13757F #133F7F #1D137F
triadic
#133F7F #7F133F #3F7F13
tetradic
#133F7F #7F1375 #7F5313 #137F1D
square
#133F7F #7F1375 #7F5313 #137F1D
split-complementary
#133F7F #7F1D13 #757F13
monochromatic
#040D1B #0B254A #133F7F #1B59B4 #2D76E0

Accessibility & contrast

On white

10.27
#133F7F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.05
#133F7F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133F7F
10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##133F7F#FFFFFF#000000##FFFFFF
##133F7F1.0010.272.0510.27
#FFFFFF10.271.0021.001.00
#0000002.0521.001.0021.00
##FFFFFF10.271.0021.001.00

Color blindness preview

Protanopia (red-blind)
#194681
Deuteranopia (green-blind)
#003C7E
Tritanopia (blue-blind)
#004E59
Achromatopsia (no color)
#414141

Design tokens & code

CSS
--color: #133f7f;
/* rgb */ color: rgb(19, 63, 127);
/* oklch */ color: oklch(37.7% 0.119 258.5);
Tailwind
colors: {
  custom: {
    50: '#6573a5',
    500: '#133f7f',
    950: '#000000',
  },
}
SCSS
$custom: #133f7f;
$custom-light: #6573a5;
$custom-dark: #000000;
JSON
{
  "hex": "#133f7f",
  "rgb": {
    "r": 19,
    "g": 63,
    "b": 127
  },
  "hsl": {
    "h": 215.556,
    "s": 73.973,
    "l": 28.627
  },
  "oklch": {
    "l": 0.37719,
    "c": 0.11852,
    "h": 258.5
  },
  "luminance": 0.05226
}

Semantic roles & 50–950 ramp

primary
#133F7F
secondary
#B48239
accent
#A537F1
background
#F6F6FA
surface
#EBECF4
border
#C6C7CE
text
#07080F
muted
#7A7B7F

Preview Lab

Preview with #133F7F

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

Preview Lab → · Contrast checker → · Palette generator →

#133F7F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva