#19178A#19178A

#19178A is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.7% C 0.178 H 270.7°. Best body text is #FFFFFF at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#19178A
RGB	rgb(25, 23, 138)
HSL	hsl(241, 71%, 32%)
HSV	hsv(241, 83%, 54%)
CMYK	cmyk(81.9%, 83.3%, 0%, 45.9%)
CIE-LAB	lab(18.60, 41.80, -61.61)
CIE-LCH	lch(18.60, 74.45, 304.15°)
OKLab	oklab(31.65% 0.002 -0.1784)
OKLCH	oklch(31.65% 0.178 270.7)
XYZ	xyz(5.2932, 2.6538, 24.2731)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#19178A #888A17

analogous

#174F8A #19178A #53178A

triadic

#19178A #8A1917 #178A19

tetradic

#19178A #8A174F #888A17 #178A53

square

#19178A #8A174F #888A17 #178A53

split-complementary

#19178A #8A5317 #4F8A17

monochromatic

#060621 #0F0E56 #19178A #2320BE #403DDF

Accessibility & contrast

On white

13.72

#19178A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#19178A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #19178A

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##19178A	#FFFFFF	#000000	##FFFFFF
##19178A	1.00	13.72	1.53	13.72
#FFFFFF	13.72	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338D

Deuteranopia (green-blind)

#002788

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #19178a;
/* rgb */ color: rgb(25, 23, 138);
/* oklch */ color: oklch(31.7% 0.178 270.7);

Tailwind

colors: {
  custom: {
    50: '#6d57ad',
    500: '#19178a',
    950: '#000000',
  },
}

SCSS

$custom: #19178a;
$custom-light: #6d57ad;
$custom-dark: #000000;

JSON

{
  "hex": "#19178a",
  "rgb": {
    "r": 25,
    "g": 23,
    "b": 138
  },
  "hsl": {
    "h": 241.043,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.31651,
    "c": 0.17837,
    "h": 270.7
  },
  "luminance": 0.02654
}

Semantic roles & 50–950 ramp

primary

#19178A

secondary

#BBBE3F

accent

#EE3AEB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #19178A

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

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