#133B7F#133B7F

#133B7F is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.8% C 0.124 H 260.4°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX#133B7F
RGBrgb(19, 59, 127)
HSLhsl(218, 74%, 29%)
HSVhsv(218, 85%, 50%)
CMYKcmyk(85%, 53.5%, 0%, 50.2%)
CIE-LABlab(26.15, 13.59, -42.33)
CIE-LCHlch(26.15, 44.46, 287.80°)
OKLaboklab(36.79% -0.0206 -0.122)
OKLCHoklch(36.79% 0.124 260.4)
XYZxyz(5.6619, 4.7980, 20.7023)
Luminance0.0480 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#133B7F #7F5713
analogous
#13717F #133B7F #21137F
triadic
#133B7F #7F133B #3B7F13
tetradic
#133B7F #7F1371 #7F5713 #137F21
square
#133B7F #7F1371 #7F5713 #137F21
split-complementary
#133B7F #7F2113 #717F13
monochromatic
#040C1B #0B224A #133B7F #1B54B4 #2D6FE0

Accessibility & contrast

On white

10.72
#133B7F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.96
#133B7F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B7F
10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##133B7F#FFFFFF#000000##FFFFFF
##133B7F1.0010.721.9610.72
#FFFFFF10.721.0021.001.00
#0000001.9621.001.0021.00
##FFFFFF10.721.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0C4381
Deuteranopia (green-blind)
#00397E
Tritanopia (blue-blind)
#004C57
Achromatopsia (no color)
#3E3E3E

Design tokens & code

CSS
--color: #133b7f;
/* rgb */ color: rgb(19, 59, 127);
/* oklch */ color: oklch(36.8% 0.124 260.4);
Tailwind
colors: {
  custom: {
    50: '#6570a5',
    500: '#133b7f',
    950: '#000000',
  },
}
SCSS
$custom: #133b7f;
$custom-light: #6570a5;
$custom-dark: #000000;
JSON
{
  "hex": "#133b7f",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 127
  },
  "hsl": {
    "h": 217.778,
    "s": 73.973,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36788,
    "c": 0.12372,
    "h": 260.4
  },
  "luminance": 0.04799
}

Semantic roles & 50–950 ramp

primary
#133B7F
secondary
#B48739
accent
#AC37F1
background
#F6F6FA
surface
#EBECF4
border
#C6C7CE
text
#07070F
muted
#7A7A7F

Preview Lab

Preview with #133B7F

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

Preview Lab → · Contrast checker → · Palette generator →

#133B7F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva