#181D56#181D56

#181D56 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.7% C 0.102 H 273.4°. Best body text is #FFFFFF at 15.57:1 contrast (WCAG AA passes).

Color values

HEX	#181D56
RGB	rgb(24, 29, 86)
HSL	hsl(235, 56%, 22%)
HSV	hsv(235, 72%, 34%)
CMYK	cmyk(72.1%, 66.3%, 0%, 66.3%)
CIE-LAB	lab(14.09, 18.92, -35.27)
CIE-LCH	lch(14.09, 40.03, 298.21°)
OKLab	oklab(26.69% 0.0061 -0.1017)
OKLCH	oklch(26.69% 0.102 273.4)
XYZ	xyz(2.4952, 1.7446, 9.0075)
Luminance	0.0175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D56 #565118

analogous

#183C56 #181D56 #321856

triadic

#181D56 #56181D #1D5618

tetradic

#181D56 #56183C #565118 #185632

square

#181D56 #56183C #565118 #185632

split-complementary

#181D56 #563218 #3C5618

monochromatic

#070818 #0B0D26 #181D56 #252D86 #333DB6

Accessibility & contrast

On white

15.57

#181D56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#181D56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D56

15.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D56	#FFFFFF	#000000	##FFFFFF
##181D56	1.00	15.57	1.35	15.57
#FFFFFF	15.57	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002758

Deuteranopia (green-blind)

#002155

Tritanopia (blue-blind)

#002B36

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #181d56;
/* rgb */ color: rgb(24, 29, 86);
/* oklch */ color: oklch(26.7% 0.102 273.4);

Tailwind

colors: {
  custom: {
    50: '#5e5886',
    500: '#181d56',
    950: '#000000',
  },
}

SCSS

$custom: #181d56;
$custom-light: #5e5886;
$custom-dark: #000000;

JSON

{
  "hex": "#181d56",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 86
  },
  "hsl": {
    "h": 235.161,
    "s": 56.364,
    "l": 21.569
  },
  "oklch": {
    "l": 0.26692,
    "c": 0.10186,
    "h": 273.4
  },
  "luminance": 0.01745
}

Semantic roles & 50–950 ramp

primary

#181D56

secondary

#8D863D

accent

#D348E0

background

#F5F5F8

surface

#EAE9EF

border

#C6C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #181D56

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

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