#18153D#18153D

#18153D is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.6% C 0.074 H 282.1°. Best body text is #FFFFFF at 17.31:1 contrast (WCAG AA passes).

Color values

HEX	#18153D
RGB	rgb(24, 21, 61)
HSL	hsl(245, 49%, 16%)
HSV	hsv(245, 66%, 24%)
CMYK	cmyk(60.7%, 65.6%, 0%, 76.1%)
CIE-LAB	lab(9.54, 14.96, -25.32)
CIE-LCH	lch(9.54, 29.41, 300.57°)
OKLab	oklab(22.63% 0.0155 -0.0725)
OKLCH	oklch(22.63% 0.074 282.1)
XYZ	xyz(1.4869, 1.0674, 4.5416)
Luminance	0.0107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18153D #3A3D15

analogous

#15263D #18153D #2C153D

triadic

#18153D #3D1815 #153D18

tetradic

#18153D #3D1526 #3A3D15 #153D2C

square

#18153D #3D1526 #3A3D15 #153D2C

split-complementary

#18153D #3D2C15 #263D15

monochromatic

#090817 #090817 #18153D #2A256B #3C3498

Accessibility & contrast

On white

17.31

#18153D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#18153D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18153D

17.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18153D	#FFFFFF	#000000	##FFFFFF
##18153D	1.00	17.31	1.21	17.31
#FFFFFF	17.31	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C3E

Deuteranopia (green-blind)

#00193C

Tritanopia (blue-blind)

#081E26

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #18153d;
/* rgb */ color: rgb(24, 21, 61);
/* oklch */ color: oklch(22.6% 0.074 282.1);

Tailwind

colors: {
  custom: {
    50: '#595273',
    500: '#18153d',
    950: '#000000',
  },
}

SCSS

$custom: #18153d;
$custom-light: #595273;
$custom-dark: #000000;

JSON

{
  "hex": "#18153d",
  "rgb": {
    "r": 24,
    "g": 21,
    "b": 61
  },
  "hsl": {
    "h": 244.5,
    "s": 48.78,
    "l": 16.078
  },
  "oklch": {
    "l": 0.22628,
    "c": 0.07414,
    "h": 282.1
  },
  "luminance": 0.01067
}

Semantic roles & 50–950 ramp

primary

#18153D

secondary

#707539

accent

#D84FCE

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040208

muted

#79787B

Preview Lab

Preview with #18153D

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

Preview Lab → · Contrast checker → · Palette generator →