#181742#181742

#181742 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.5% C 0.079 H 279.4°. Best body text is #FFFFFF at 16.94:1 contrast (WCAG AA passes).

Color values

HEX	#181742
RGB	rgb(24, 23, 66)
HSL	hsl(241, 48%, 17%)
HSV	hsv(241, 65%, 26%)
CMYK	cmyk(63.6%, 65.2%, 0%, 74.1%)
CIE-LAB	lab(10.56, 15.41, -27.22)
CIE-LCH	lch(10.56, 31.28, 299.51°)
OKLab	oklab(23.52% 0.013 -0.0781)
OKLCH	oklch(23.52% 0.079 279.4)
XYZ	xyz(1.6661, 1.2002, 5.2971)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181742 #414217

analogous

#172C42 #181742 #2D1742

triadic

#181742 #421817 #174218

tetradic

#181742 #42172C #414217 #17422D

square

#181742 #42172C #414217 #17422D

split-complementary

#181742 #422D17 #2C4217

monochromatic

#080817 #080817 #181742 #29276F #39379D

Accessibility & contrast

On white

16.94

#181742 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#181742 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181742

16.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181742	#FFFFFF	#000000	##FFFFFF
##181742	1.00	16.94	1.24	16.94
#FFFFFF	16.94	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E43

Deuteranopia (green-blind)

#001B41

Tritanopia (blue-blind)

#042129

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #181742;
/* rgb */ color: rgb(24, 23, 66);
/* oklch */ color: oklch(23.5% 0.079 279.4);

Tailwind

colors: {
  custom: {
    50: '#5a5477',
    500: '#181742',
    950: '#000000',
  },
}

SCSS

$custom: #181742;
$custom-light: #5a5477;
$custom-dark: #000000;

JSON

{
  "hex": "#181742",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 66
  },
  "hsl": {
    "h": 241.395,
    "s": 48.315,
    "l": 17.451
  },
  "oklch": {
    "l": 0.23519,
    "c": 0.07913,
    "h": 279.4
  },
  "luminance": 0.012
}

Semantic roles & 50–950 ramp

primary

#181742

secondary

#78793C

accent

#D850D5

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040208

muted

#79787B

Preview Lab

Preview with #181742

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

Preview Lab → · Contrast checker → · Palette generator →