#18133D#18133D

#18133D is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.2% C 0.077 H 283.5°. Best body text is #FFFFFF at 17.51:1 contrast (WCAG AA passes).

Color values

HEX	#18133D
RGB	rgb(24, 19, 61)
HSL	hsl(247, 53%, 16%)
HSV	hsv(247, 69%, 24%)
CMYK	cmyk(60.7%, 68.9%, 0%, 76.1%)
CIE-LAB	lab(8.96, 16.45, -26.26)
CIE-LCH	lch(8.96, 30.98, 302.06°)
OKLab	oklab(22.2% 0.0181 -0.0753)
OKLCH	oklch(22.2% 0.077 283.5)
XYZ	xyz(1.4516, 0.9968, 4.5299)
Luminance	0.0100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18133D #383D13

analogous

#13233D #18133D #2D133D

triadic

#18133D #3D1813 #133D18

tetradic

#18133D #3D1323 #383D13 #133D2D

square

#18133D #3D1323 #383D13 #133D2D

split-complementary

#18133D #3D2D13 #233D13

monochromatic

#090717 #090717 #18133D #2A226C #3D309A

Accessibility & contrast

On white

17.51

#18133D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#18133D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18133D

17.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18133D	#FFFFFF	#000000	##FFFFFF
##18133D	1.00	17.51	1.20	17.51
#FFFFFF	17.51	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B3E

Deuteranopia (green-blind)

#00183C

Tritanopia (blue-blind)

#091D25

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #18133d;
/* rgb */ color: rgb(24, 19, 61);
/* oklch */ color: oklch(22.2% 0.077 283.5);

Tailwind

colors: {
  custom: {
    50: '#595073',
    500: '#18133d',
    950: '#000000',
  },
}

SCSS

$custom: #18133d;
$custom-light: #595073;
$custom-dark: #000000;

JSON

{
  "hex": "#18133d",
  "rgb": {
    "r": 24,
    "g": 19,
    "b": 61
  },
  "hsl": {
    "h": 247.143,
    "s": 52.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.22203,
    "c": 0.0774,
    "h": 283.5
  },
  "luminance": 0.00997
}

Semantic roles & 50–950 ramp

primary

#18133D

secondary

#6E7536

accent

#DC4CCB

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040208

muted

#79787B

Preview Lab

Preview with #18133D

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

Preview Lab → · Contrast checker → · Palette generator →