#183063#183063

#183063 is a dark, moderate blue. Relative luminance 0.032; OKLCH L 32.1% C 0.095 H 263.1°. Best body text is #FFFFFF at 12.79:1 contrast (WCAG AA passes).

Color values

HEX	#183063
RGB	rgb(24, 48, 99)
HSL	hsl(221, 61%, 24%)
HSV	hsv(221, 76%, 39%)
CMYK	cmyk(75.8%, 51.5%, 0%, 61.2%)
CIE-LAB	lab(20.86, 10.34, -32.94)
CIE-LCH	lch(20.86, 34.52, 287.44°)
OKLab	oklab(32.13% -0.0114 -0.0945)
OKLCH	oklch(32.13% 0.095 263.1)
XYZ	xyz(3.6850, 3.2086, 12.2271)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183063 #634B18

analogous

#185663 #183063 #261863

triadic

#183063 #631830 #306318

tetradic

#183063 #631856 #634B18 #186326

square

#183063 #631856 #634B18 #186326

split-complementary

#183063 #632618 #566318

monochromatic

#060C19 #0C1832 #183063 #244894 #3060C6

Accessibility & contrast

On white

12.79

#183063 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#183063 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183063

12.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183063	#FFFFFF	#000000	##FFFFFF
##183063	1.00	12.79	1.64	12.79
#FFFFFF	12.79	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#143665

Deuteranopia (green-blind)

#012F62

Tritanopia (blue-blind)

#003C44

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #183063;
/* rgb */ color: rgb(24, 48, 99);
/* oklch */ color: oklch(32.1% 0.095 263.1);

Tailwind

colors: {
  custom: {
    50: '#606790',
    500: '#183063',
    950: '#000000',
  },
}

SCSS

$custom: #183063;
$custom-light: #606790;
$custom-dark: #000000;

JSON

{
  "hex": "#183063",
  "rgb": {
    "r": 24,
    "g": 48,
    "b": 99
  },
  "hsl": {
    "h": 220.8,
    "s": 60.976,
    "l": 24.118
  },
  "oklch": {
    "l": 0.32128,
    "c": 0.09518,
    "h": 263.1
  },
  "luminance": 0.03209
}

Semantic roles & 50–950 ramp

primary

#183063

secondary

#997C3E

accent

#B144E4

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05060C

muted

#7A7A7D

Preview Lab

Preview with #183063

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

Preview Lab → · Contrast checker → · Palette generator →