#18198B#18198B

#18198B is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.0% C 0.178 H 270.1°. Best body text is #FFFFFF at 13.54:1 contrast (WCAG AA passes).

Color values

HEX	#18198B
RGB	rgb(24, 25, 139)
HSL	hsl(239, 71%, 32%)
HSV	hsv(239, 83%, 55%)
CMYK	cmyk(82.7%, 82%, 0%, 45.5%)
CIE-LAB	lab(19.03, 41.04, -61.54)
CIE-LCH	lch(19.03, 73.97, 303.70°)
OKLab	oklab(31.97% 0.0002 -0.1782)
OKLCH	oklch(31.97% 0.178 270.1)
XYZ	xyz(5.3829, 2.7529, 24.6688)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18198B #8B8A18

analogous

#18538B #18198B #51188B

triadic

#18198B #8B1819 #198B18

tetradic

#18198B #8B1853 #8B8A18 #188B51

square

#18198B #8B1853 #8B8A18 #188B51

split-complementary

#18198B #8B5118 #538B18

monochromatic

#060623 #0F1057 #18198B #2122BF #3F41DE

Accessibility & contrast

On white

13.54

#18198B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#18198B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18198B

13.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18198B	#FFFFFF	#000000	##FFFFFF
##18198B	1.00	13.54	1.55	13.54
#FFFFFF	13.54	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348E

Deuteranopia (green-blind)

#002889

Tritanopia (blue-blind)

#003D52

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #18198b;
/* rgb */ color: rgb(24, 25, 139);
/* oklch */ color: oklch(32.0% 0.178 270.1);

Tailwind

colors: {
  custom: {
    50: '#6d58ae',
    500: '#18198b',
    950: '#000000',
  },
}

SCSS

$custom: #18198b;
$custom-light: #6d58ae;
$custom-dark: #000000;

JSON

{
  "hex": "#18198b",
  "rgb": {
    "r": 24,
    "g": 25,
    "b": 139
  },
  "hsl": {
    "h": 239.478,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.31969,
    "c": 0.17819,
    "h": 270.1
  },
  "luminance": 0.02754
}

Semantic roles & 50–950 ramp

primary

#18198B

secondary

#BEBD40

accent

#EC3AED

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#080310

muted

#7B787F

Preview Lab

Preview with #18198B

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

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