#18154D#18154D

#18154D is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.2% C 0.099 H 278.3°. Best body text is #FFFFFF at 16.76:1 contrast (WCAG AA passes).

Color values

HEX	#18154D
RGB	rgb(24, 21, 77)
HSL	hsl(243, 57%, 19%)
HSV	hsv(243, 73%, 30%)
CMYK	cmyk(68.8%, 72.7%, 0%, 69.8%)
CIE-LAB	lab(11.04, 21.13, -34.11)
CIE-LCH	lch(11.04, 40.12, 301.78°)
OKLab	oklab(24.19% 0.0144 -0.0983)
OKLCH	oklch(24.19% 0.099 278.3)
XYZ	xyz(1.9840, 1.2662, 7.1596)
Luminance	0.0127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18154D #4A4D15

analogous

#152E4D #18154D #34154D

triadic

#18154D #4D1815 #154D18

tetradic

#18154D #4D152E #4A4D15 #154D34

square

#18154D #4D152E #4A4D15 #154D34

split-complementary

#18154D #4D3415 #2E4D15

monochromatic

#070718 #09081D #18154D #27227D #362FAD

Accessibility & contrast

On white

16.76

#18154D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#18154D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18154D

16.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18154D	#FFFFFF	#000000	##FFFFFF
##18154D	1.00	16.76	1.25	16.76
#FFFFFF	16.76	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00204F

Deuteranopia (green-blind)

#001B4C

Tritanopia (blue-blind)

#00232E

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #18154d;
/* rgb */ color: rgb(24, 21, 77);
/* oklch */ color: oklch(24.2% 0.099 278.3);

Tailwind

colors: {
  custom: {
    50: '#5d527f',
    500: '#18154d',
    950: '#000000',
  },
}

SCSS

$custom: #18154d;
$custom-light: #5d527f;
$custom-dark: #000000;

JSON

{
  "hex": "#18154d",
  "rgb": {
    "r": 24,
    "g": 21,
    "b": 77
  },
  "hsl": {
    "h": 243.214,
    "s": 57.143,
    "l": 19.216
  },
  "oklch": {
    "l": 0.24192,
    "c": 0.09936,
    "h": 278.3
  },
  "luminance": 0.01266
}

Semantic roles & 50–950 ramp

primary

#18154D

secondary

#818539

accent

#E047D8

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #18154D

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

Preview Lab → · Contrast checker → · Palette generator →