#19183F#19183F

#19183F is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.6% C 0.072 H 280.4°. Best body text is #FFFFFF at 16.88:1 contrast (WCAG AA passes).

Color values

HEX	#19183F
RGB	rgb(25, 24, 63)
HSL	hsl(242, 45%, 17%)
HSV	hsv(242, 62%, 25%)
CMYK	cmyk(60.3%, 61.9%, 0%, 75.3%)
CIE-LAB	lab(10.69, 13.73, -24.88)
CIE-LCH	lch(10.69, 28.42, 298.90°)
OKLab	oklab(23.56% 0.0131 -0.0711)
OKLCH	oklch(23.56% 0.072 280.4)
XYZ	xyz(1.6245, 1.2187, 4.8513)
Luminance	0.0122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#19183F #3E3F18

analogous

#182B3F #19183F #2D183F

triadic

#19183F #3F1918 #183F19

tetradic

#19183F #3F182B #3E3F18 #183F2D

square

#19183F #3F182B #3E3F18 #183F2D

split-complementary

#19183F #3F2D18 #2B3F18

monochromatic

#090816 #090816 #19183F #2B296B #3C3A98

Accessibility & contrast

On white

16.88

#19183F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#19183F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #19183F

16.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##19183F	#FFFFFF	#000000	##FFFFFF
##19183F	1.00	16.88	1.24	16.88
#FFFFFF	16.88	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#031E40

Deuteranopia (green-blind)

#001B3E

Tritanopia (blue-blind)

#092128

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #19183f;
/* rgb */ color: rgb(25, 24, 63);
/* oklch */ color: oklch(23.6% 0.072 280.4);

Tailwind

colors: {
  custom: {
    50: '#5a5474',
    500: '#19183f',
    950: '#000000',
  },
}

SCSS

$custom: #19183f;
$custom-light: #5a5474;
$custom-dark: #000000;

JSON

{
  "hex": "#19183f",
  "rgb": {
    "r": 25,
    "g": 24,
    "b": 63
  },
  "hsl": {
    "h": 241.538,
    "s": 44.828,
    "l": 17.059
  },
  "oklch": {
    "l": 0.23563,
    "c": 0.07232,
    "h": 280.4
  },
  "luminance": 0.01219
}

Semantic roles & 50–950 ramp

primary

#19183F

secondary

#74753D

accent

#D553D1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040208

muted

#79787B

Preview Lab

Preview with #19183F

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

Preview Lab → · Contrast checker → · Palette generator →