#181856#181856

#181856 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.7% C 0.109 H 275.6°. Best body text is #FFFFFF at 16.11:1 contrast (WCAG AA passes).

Color values

HEX	#181856
RGB	rgb(24, 24, 86)
HSL	hsl(240, 56%, 22%)
HSV	hsv(240, 72%, 34%)
CMYK	cmyk(72.1%, 72.1%, 0%, 66.3%)
CIE-LAB	lab(12.73, 22.50, -37.49)
CIE-LCH	lch(12.73, 43.72, 300.97°)
OKLab	oklab(25.7% 0.0106 -0.1082)
OKLCH	oklch(25.7% 0.109 275.6)
XYZ	xyz(2.3825, 1.5191, 8.9700)
Luminance	0.0152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181856 #565618

analogous

#183756 #181856 #371856

triadic

#181856 #561818 #185618

tetradic

#181856 #561837 #565618 #185637

square

#181856 #561837 #565618 #185637

split-complementary

#181856 #563718 #375618

monochromatic

#070718 #0B0B26 #181856 #252586 #3333B6

Accessibility & contrast

On white

16.11

#181856 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#181856 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181856

16.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181856	#FFFFFF	#000000	##FFFFFF
##181856	1.00	16.11	1.30	16.11
#FFFFFF	16.11	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002458

Deuteranopia (green-blind)

#001E55

Tritanopia (blue-blind)

#002834

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #181856;
/* rgb */ color: rgb(24, 24, 86);
/* oklch */ color: oklch(25.7% 0.109 275.6);

Tailwind

colors: {
  custom: {
    50: '#5f5586',
    500: '#181856',
    950: '#000000',
  },
}

SCSS

$custom: #181856;
$custom-light: #5f5586;
$custom-dark: #000000;

JSON

{
  "hex": "#181856",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 86
  },
  "hsl": {
    "h": 240,
    "s": 56.364,
    "l": 21.569
  },
  "oklch": {
    "l": 0.25699,
    "c": 0.10872,
    "h": 275.6
  },
  "luminance": 0.01519
}

Semantic roles & 50–950 ramp

primary

#181856

secondary

#8D8D3D

accent

#E048E0

background

#F5F4F8

surface

#EAE8EF

border

#C6C4CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #181856

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

Preview Lab → · Contrast checker → · Palette generator →