#182B54#182B54

#182B54 is a dark, moderate blue. Relative luminance 0.026; OKLCH L 29.7% C 0.078 H 263.6°. Best body text is #FFFFFF at 13.89:1 contrast (WCAG AA passes).

Color values

HEX	#182B54
RGB	rgb(24, 43, 84)
HSL	hsl(221, 56%, 21%)
HSV	hsv(221, 71%, 33%)
CMYK	cmyk(71.4%, 48.8%, 0%, 67.1%)
CIE-LAB	lab(18.20, 7.76, -27.28)
CIE-LCH	lch(18.20, 28.37, 285.88°)
OKLab	oklab(29.74% -0.0087 -0.078)
OKLCH	oklch(29.74% 0.078 263.6)
XYZ	xyz(2.8402, 2.5618, 8.7306)
Luminance	0.0256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B54 #544118

analogous

#184954 #182B54 #231854

triadic

#182B54 #54182B #2B5418

tetradic

#182B54 #541849 #544118 #185423

square

#182B54 #541849 #544118 #185423

split-complementary

#182B54 #542318 #495418

monochromatic

#070C18 #0A1324 #182B54 #264384 #335CB3

Accessibility & contrast

On white

13.89

#182B54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#182B54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B54

13.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B54	#FFFFFF	#000000	##FFFFFF
##182B54	1.00	13.89	1.51	13.89
#FFFFFF	13.89	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172F56

Deuteranopia (green-blind)

#0D2A53

Tritanopia (blue-blind)

#00343B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #182b54;
/* rgb */ color: rgb(24, 43, 84);
/* oklch */ color: oklch(29.7% 0.078 263.6);

Tailwind

colors: {
  custom: {
    50: '#5d6384',
    500: '#182b54',
    950: '#000000',
  },
}

SCSS

$custom: #182b54;
$custom-light: #5d6384;
$custom-dark: #000000;

JSON

{
  "hex": "#182b54",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 84
  },
  "hsl": {
    "h": 221,
    "s": 55.556,
    "l": 21.176
  },
  "oklch": {
    "l": 0.2974,
    "c": 0.07845,
    "h": 263.6
  },
  "luminance": 0.02562
}

Semantic roles & 50–950 ramp

primary

#182B54

secondary

#8B723D

accent

#AF49DF

background

#F5F5F8

surface

#E9EAEF

border

#C5C6CA

text

#04050B

muted

#79797C

Preview Lab

Preview with #182B54

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

Preview Lab → · Contrast checker → · Palette generator →