#18133A#18133A

#18133A is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.9% C 0.073 H 284.5°. Best body text is #FFFFFF at 17.60:1 contrast (WCAG AA passes).

Color values

HEX	#18133A
RGB	rgb(24, 19, 58)
HSL	hsl(248, 51%, 15%)
HSV	hsv(248, 67%, 23%)
CMYK	cmyk(58.6%, 67.2%, 0%, 77.3%)
CIE-LAB	lab(8.70, 15.31, -24.54)
CIE-LCH	lch(8.70, 28.92, 301.96°)
OKLab	oklab(21.92% 0.0182 -0.0702)
OKLCH	oklch(21.92% 0.073 284.5)
XYZ	xyz(1.3731, 0.9654, 4.1161)
Luminance	0.0097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18133A #353A13

analogous

#13223A #18133A #2B133A

triadic

#18133A #3A1813 #133A18

tetradic

#18133A #3A1322 #353A13 #133A2B

square

#18133A #3A1322 #353A13 #133A2B

split-complementary

#18133A #3A2B13 #223A13

monochromatic

#0A0817 #0A0817 #18133A #2B2268 #3E3196

Accessibility & contrast

On white

17.60

#18133A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#18133A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18133A

17.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18133A	#FFFFFF	#000000	##FFFFFF
##18133A	1.00	17.60	1.19	17.60
#FFFFFF	17.60	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3B

Deuteranopia (green-blind)

#001839

Tritanopia (blue-blind)

#0B1C24

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #18133a;
/* rgb */ color: rgb(24, 19, 58);
/* oklch */ color: oklch(21.9% 0.073 284.5);

Tailwind

colors: {
  custom: {
    50: '#585070',
    500: '#18133a',
    950: '#000000',
  },
}

SCSS

$custom: #18133a;
$custom-light: #585070;
$custom-dark: #000000;

JSON

{
  "hex": "#18133a",
  "rgb": {
    "r": 24,
    "g": 19,
    "b": 58
  },
  "hsl": {
    "h": 247.692,
    "s": 50.649,
    "l": 15.098
  },
  "oklch": {
    "l": 0.21924,
    "c": 0.07252,
    "h": 284.5
  },
  "luminance": 0.00965
}

Semantic roles & 50–950 ramp

primary

#18133A

secondary

#6B7236

accent

#DA4EC8

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030207

muted

#78787A

Preview Lab

Preview with #18133A

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

Preview Lab → · Contrast checker → · Palette generator →