#182B3C#182B3C

#182B3C is a dark, muted cyan. Relative luminance 0.022; OKLCH L 28.1% C 0.040 H 246.8°. Best body text is #FFFFFF at 14.49:1 contrast (WCAG AA passes).

Color values

HEX	#182B3C
RGB	rgb(24, 43, 60)
HSL	hsl(208, 43%, 16%)
HSV	hsv(208, 60%, 24%)
CMYK	cmyk(60%, 28.3%, 0%, 76.5%)
CIE-LAB	lab(16.74, -1.80, -13.21)
CIE-LCH	lch(16.74, 13.33, 262.24°)
OKLab	oklab(28.13% -0.0158 -0.0369)
OKLCH	oklch(28.13% 0.04 246.8)
XYZ	xyz(2.0559, 2.2480, 4.5997)
Luminance	0.0225 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B3C #3C2918

analogous

#183C3B #182B3C #18193C

triadic

#182B3C #3C182B #2B3C18

tetradic

#182B3C #3B183C #3C2918 #193C18

square

#182B3C #3B183C #3C2918 #193C18

split-complementary

#182B3C #3C1819 #3C3B18

monochromatic

#091016 #091016 #182B3C #294A68 #3B6A93

Accessibility & contrast

On white

14.49

#182B3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#182B3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B3C

14.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B3C	#FFFFFF	#000000	##FFFFFF
##182B3C	1.00	14.49	1.45	14.49
#FFFFFF	14.49	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#242B3D

Deuteranopia (green-blind)

#1F283C

Tritanopia (blue-blind)

#052F31

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #182b3c;
/* rgb */ color: rgb(24, 43, 60);
/* oklch */ color: oklch(28.1% 0.040 246.8);

Tailwind

colors: {
  custom: {
    50: '#586471',
    500: '#182b3c',
    950: '#000000',
  },
}

SCSS

$custom: #182b3c;
$custom-light: #586471;
$custom-dark: #000000;

JSON

{
  "hex": "#182b3c",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 60
  },
  "hsl": {
    "h": 208.333,
    "s": 42.857,
    "l": 16.471
  },
  "oklch": {
    "l": 0.28131,
    "c": 0.0402,
    "h": 246.8
  },
  "luminance": 0.02248
}

Semantic roles & 50–950 ramp

primary

#182B3C

secondary

#72563E

accent

#9055D3

background

#F5F5F6

surface

#E9EAEC

border

#C5C6C7

text

#030507

muted

#78797A

Preview Lab

Preview with #182B3C

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

Preview Lab → · Contrast checker → · Palette generator →