#181055#181055

#181055 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 24.2% C 0.117 H 278.3°. Best body text is #FFFFFF at 16.88:1 contrast (WCAG AA passes).

Color values

HEX	#181055
RGB	rgb(24, 16, 85)
HSL	hsl(247, 68%, 20%)
HSV	hsv(247, 81%, 33%)
CMYK	cmyk(71.8%, 81.2%, 0%, 66.7%)
CIE-LAB	lab(10.71, 27.40, -40.13)
CIE-LCH	lch(10.71, 48.59, 304.32°)
OKLab	oklab(24.22% 0.0169 -0.1159)
OKLCH	oklch(24.22% 0.117 278.3)
XYZ	xyz(2.2011, 1.2205, 8.7121)
Luminance	0.0122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181055 #4D5510

analogous

#102A55 #181055 #3B1055

triadic

#181055 #551810 #105518

tetradic

#181055 #55102A #4D5510 #10553B

square

#181055 #55102A #4D5510 #10553B

split-complementary

#181055 #553B10 #2A5510

monochromatic

#07051A #090621 #181055 #271A89 #3523BC

Accessibility & contrast

On white

16.88

#181055 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#181055 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181055

16.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181055	#FFFFFF	#000000	##FFFFFF
##181055	1.00	16.88	1.24	16.88
#FFFFFF	16.88	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002057

Deuteranopia (green-blind)

#001A54

Tritanopia (blue-blind)

#002431

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #181055;
/* rgb */ color: rgb(24, 16, 85);
/* oklch */ color: oklch(24.2% 0.117 278.3);

Tailwind

colors: {
  custom: {
    50: '#5f4f86',
    500: '#181055',
    950: '#000000',
  },
}

SCSS

$custom: #181055;
$custom-light: #5f4f86;
$custom-dark: #000000;

JSON

{
  "hex": "#181055",
  "rgb": {
    "r": 24,
    "g": 16,
    "b": 85
  },
  "hsl": {
    "h": 246.957,
    "s": 68.317,
    "l": 19.804
  },
  "oklch": {
    "l": 0.24219,
    "c": 0.11713,
    "h": 278.3
  },
  "luminance": 0.01221
}

Semantic roles & 50–950 ramp

primary

#181055

secondary

#848F32

accent

#EB3DD7

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #181055

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

Preview Lab → · Contrast checker → · Palette generator →