#181547#181547

#181547 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.6% C 0.090 H 279.6°. Best body text is #FFFFFF at 16.98:1 contrast (WCAG AA passes).

Color values

HEX	#181547
RGB	rgb(24, 21, 71)
HSL	hsl(244, 54%, 18%)
HSV	hsv(244, 70%, 28%)
CMYK	cmyk(66.2%, 70.4%, 0%, 72.2%)
CIE-LAB	lab(10.45, 18.82, -30.91)
CIE-LCH	lch(10.45, 36.19, 301.34°)
OKLab	oklab(23.58% 0.0151 -0.0889)
OKLCH	oklch(23.58% 0.09 279.6)
XYZ	xyz(1.7818, 1.1853, 6.0949)
Luminance	0.0118 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181547 #444715

analogous

#152B47 #181547 #311547

triadic

#181547 #471815 #154718

tetradic

#181547 #47152B #444715 #154731

square

#181547 #47152B #444715 #154731

split-complementary

#181547 #473115 #2B4715

monochromatic

#080718 #080718 #181547 #282376 #3831A5

Accessibility & contrast

On white

16.98

#181547 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#181547 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181547

16.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181547	#FFFFFF	#000000	##FFFFFF
##181547	1.00	16.98	1.24	16.98
#FFFFFF	16.98	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E49

Deuteranopia (green-blind)

#001A46

Tritanopia (blue-blind)

#00212B

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #181547;
/* rgb */ color: rgb(24, 21, 71);
/* oklch */ color: oklch(23.6% 0.090 279.6);

Tailwind

colors: {
  custom: {
    50: '#5b527b',
    500: '#181547',
    950: '#000000',
  },
}

SCSS

$custom: #181547;
$custom-light: #5b527b;
$custom-dark: #000000;

JSON

{
  "hex": "#181547",
  "rgb": {
    "r": 24,
    "g": 21,
    "b": 71
  },
  "hsl": {
    "h": 243.6,
    "s": 54.348,
    "l": 18.039
  },
  "oklch": {
    "l": 0.23581,
    "c": 0.09017,
    "h": 279.6
  },
  "luminance": 0.01185
}

Semantic roles & 50–950 ramp

primary

#181547

secondary

#7B7F39

accent

#DE4AD5

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#040209

muted

#79787B

Preview Lab

Preview with #181547

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

Preview Lab → · Contrast checker → · Palette generator →