#19183B#19183B

#19183B is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.2% C 0.066 H 281.3°. Best body text is #FFFFFF at 17.00:1 contrast (WCAG AA passes).

Color values

HEX	#19183B
RGB	rgb(25, 24, 59)
HSL	hsl(242, 42%, 16%)
HSV	hsv(242, 59%, 23%)
CMYK	cmyk(57.6%, 59.3%, 0%, 76.9%)
CIE-LAB	lab(10.38, 12.19, -22.55)
CIE-LCH	lch(10.38, 25.63, 298.40°)
OKLab	oklab(23.22% 0.0128 -0.0643)
OKLCH	oklch(23.22% 0.066 281.3)
XYZ	xyz(1.5167, 1.1756, 4.2838)
Luminance	0.0118 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#19183B #3A3B18

analogous

#18293B #19183B #2B183B

triadic

#19183B #3B1918 #183B19

tetradic

#19183B #3B1829 #3A3B18 #183B2B

square

#19183B #3B1829 #3A3B18 #183B2B

split-complementary

#19183B #3B2B18 #293B18

monochromatic

#090916 #090916 #19183B #2B2A67 #3E3B92

Accessibility & contrast

On white

17.00

#19183B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#19183B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #19183B

17.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##19183B	#FFFFFF	#000000	##FFFFFF
##19183B	1.00	17.00	1.24	17.00
#FFFFFF	17.00	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	17.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#071E3C

Deuteranopia (green-blind)

#051B3A

Tritanopia (blue-blind)

#0C2026

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #19183b;
/* rgb */ color: rgb(25, 24, 59);
/* oklch */ color: oklch(23.2% 0.066 281.3);

Tailwind

colors: {
  custom: {
    50: '#595471',
    500: '#19183b',
    950: '#000000',
  },
}

SCSS

$custom: #19183b;
$custom-light: #595471;
$custom-dark: #000000;

JSON

{
  "hex": "#19183b",
  "rgb": {
    "r": 25,
    "g": 24,
    "b": 59
  },
  "hsl": {
    "h": 241.714,
    "s": 42.169,
    "l": 16.275
  },
  "oklch": {
    "l": 0.23223,
    "c": 0.06554,
    "h": 281.3
  },
  "luminance": 0.01176
}

Semantic roles & 50–950 ramp

primary

#19183B

secondary

#70713E

accent

#D256CE

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040207

muted

#79787A

Preview Lab

Preview with #19183B

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

Preview Lab → · Contrast checker → · Palette generator →