#181D47#181D47

#181D47 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.3% C 0.078 H 274.3°. Best body text is #FFFFFF at 16.08:1 contrast (WCAG AA passes).

Color values

HEX	#181D47
RGB	rgb(24, 29, 71)
HSL	hsl(234, 49%, 19%)
HSV	hsv(234, 66%, 28%)
CMYK	cmyk(66.2%, 59.2%, 0%, 72.2%)
CIE-LAB	lab(12.78, 12.88, -27.12)
CIE-LCH	lch(12.78, 30.02, 295.41°)
OKLab	oklab(25.31% 0.0059 -0.0777)
OKLCH	oklch(25.31% 0.078 274.3)
XYZ	xyz(1.9530, 1.5277, 6.1520)
Luminance	0.0153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D47 #474218

analogous

#183447 #181D47 #2A1847

triadic

#181D47 #47181D #1D4718

tetradic

#181D47 #471834 #474218 #18472A

square

#181D47 #471834 #474218 #18472A

split-complementary

#181D47 #472A18 #344718

monochromatic

#080917 #090A19 #181D47 #273075 #3742A2

Accessibility & contrast

On white

16.08

#181D47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#181D47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D47

16.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D47	#FFFFFF	#000000	##FFFFFF
##181D47	1.00	16.08	1.31	16.08
#FFFFFF	16.08	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#052348

Deuteranopia (green-blind)

#001F46

Tritanopia (blue-blind)

#00272E

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #181d47;
/* rgb */ color: rgb(24, 29, 71);
/* oklch */ color: oklch(25.3% 0.078 274.3);

Tailwind

colors: {
  custom: {
    50: '#5a587a',
    500: '#181d47',
    950: '#000000',
  },
}

SCSS

$custom: #181d47;
$custom-light: #5a587a;
$custom-dark: #000000;

JSON

{
  "hex": "#181d47",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 71
  },
  "hsl": {
    "h": 233.617,
    "s": 49.474,
    "l": 18.627
  },
  "oklch": {
    "l": 0.25312,
    "c": 0.07791,
    "h": 274.3
  },
  "luminance": 0.01528
}

Semantic roles & 50–950 ramp

primary

#181D47

secondary

#7E773D

accent

#CA4FD9

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040309

muted

#79787B

Preview Lab

Preview with #181D47

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

Preview Lab → · Contrast checker → · Palette generator →