#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
RGB	rgb(25, 23, 59)
HSL	hsl(243, 44%, 16%)
HSV	hsv(243, 61%, 23%)
CMYK	cmyk(57.6%, 61%, 0%, 76.9%)
CIE-LAB	lab(10.07, 12.95, -23.04)
CIE-LCH	lch(10.07, 26.43, 299.33°)
OKLab	oklab(22.99% 0.0143 -0.0657)
OKLCH	oklch(22.99% 0.067 282.2)
XYZ	xyz(1.4965, 1.1352, 4.2771)
Luminance	0.0114 (WCAG relative)
Temperature	cool
Family	blue

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
##19173B	1.00	17.11	1.23	17.11
#FFFFFF	17.11	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.11	1.00	21.00	1.00

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 →