#183545#183545

#183545 is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.4% C 0.045 H 234.9°. Best body text is #FFFFFF at 12.85:1 contrast (WCAG AA passes).

Color values

HEX	#183545
RGB	rgb(24, 53, 69)
HSL	hsl(201, 48%, 18%)
HSV	hsv(201, 65%, 27%)
CMYK	cmyk(65.2%, 23.2%, 0%, 72.9%)
CIE-LAB	lab(20.71, -5.23, -13.22)
CIE-LCH	lch(20.71, 14.22, 248.40°)
OKLab	oklab(31.42% -0.026 -0.0369)
OKLCH	oklch(31.42% 0.045 234.9)
XYZ	xyz(2.7236, 3.1698, 6.0974)
Luminance	0.0317 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183545 #452818

analogous

#18453E #183545 #181E45

triadic

#183545 #451835 #354518

tetradic

#183545 #3E1845 #452818 #1E4518

square

#183545 #3E1845 #452818 #1E4518

split-complementary

#183545 #45181E #453E18

monochromatic

#081117 #081218 #183545 #285872 #387BA0

Accessibility & contrast

On white

12.85

#183545 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#183545 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183545

12.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183545	#FFFFFF	#000000	##FFFFFF
##183545	1.00	12.85	1.63	12.85
#FFFFFF	12.85	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3446

Deuteranopia (green-blind)

#273045

Tritanopia (blue-blind)

#00393A

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #183545;
/* rgb */ color: rgb(24, 53, 69);
/* oklch */ color: oklch(31.4% 0.045 234.9);

Tailwind

colors: {
  custom: {
    50: '#5a6c78',
    500: '#183545',
    950: '#000000',
  },
}

SCSS

$custom: #183545;
$custom-light: #5a6c78;
$custom-dark: #000000;

JSON

{
  "hex": "#183545",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 69
  },
  "hsl": {
    "h": 201.333,
    "s": 48.387,
    "l": 18.235
  },
  "oklch": {
    "l": 0.31422,
    "c": 0.04516,
    "h": 234.9
  },
  "luminance": 0.0317
}

Semantic roles & 50–950 ramp

primary

#183545

secondary

#7C533D

accent

#8050D8

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#040609

muted

#797A7B

Preview Lab

Preview with #183545

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

Preview Lab → · Contrast checker → · Palette generator →