#19173B#19173B

#19173B is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.0% C 0.067 H 282.2°. Best body text is #FFFFFF at 17.11:1 contrast (WCAG AA passes).

Color values

HEX#19173B
RGBrgb(25, 23, 59)
HSLhsl(243, 44%, 16%)
HSVhsv(243, 61%, 23%)
CMYKcmyk(57.6%, 61%, 0%, 76.9%)
CIE-LABlab(10.07, 12.95, -23.04)
CIE-LCHlch(10.07, 26.43, 299.33°)
OKLaboklab(22.99% 0.0143 -0.0657)
OKLCHoklch(22.99% 0.067 282.2)
XYZxyz(1.4965, 1.1352, 4.2771)
Luminance0.0114 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#19173B #393B17
analogous
#17273B #19173B #2B173B
triadic
#19173B #3B1917 #173B19
tetradic
#19173B #3B1727 #393B17 #173B2B
square
#19173B #3B1727 #393B17 #173B2B
split-complementary
#19173B #3B2B17 #273B17
monochromatic
#090916 #090916 #19173B #2C2867 #3E3993

Accessibility & contrast

On white

17.11
#19173B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.23
#19173B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #19173B
17.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##19173B#FFFFFF#000000##FFFFFF
##19173B1.0017.111.2317.11
#FFFFFF17.111.0021.001.00
#0000001.2321.001.0021.00
##FFFFFF17.111.0021.001.00

Color blindness preview

Protanopia (red-blind)
#051D3C
Deuteranopia (green-blind)
#031A3A
Tritanopia (blue-blind)
#0C1F26
Achromatopsia (no color)
#1C1C1C

Design tokens & code

CSS
--color: #19173b;
/* rgb */ color: rgb(25, 23, 59);
/* oklch */ color: oklch(23.0% 0.067 282.2);
Tailwind
colors: {
  custom: {
    50: '#595371',
    500: '#19173b',
    950: '#000000',
  },
}
SCSS
$custom: #19173b;
$custom-light: #595371;
$custom-dark: #000000;
JSON
{
  "hex": "#19173b",
  "rgb": {
    "r": 25,
    "g": 23,
    "b": 59
  },
  "hsl": {
    "h": 243.333,
    "s": 43.902,
    "l": 16.078
  },
  "oklch": {
    "l": 0.22994,
    "c": 0.06725,
    "h": 282.2
  },
  "luminance": 0.01135
}

Semantic roles & 50–950 ramp

primary
#19173B
secondary
#6F723C
accent
#D454CD
background
#F5F4F6
surface
#E9E7EC
border
#C5C3C7
text
#040207
muted
#79787A

Preview Lab

Preview with #19173B

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

Preview Lab → · Contrast checker → · Palette generator →

#19173B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva