#182D3C#182D3C

#182D3C is a dark, muted cyan. Relative luminance 0.024; OKLCH L 28.7% C 0.039 H 241.0°. Best body text is #FFFFFF at 14.19:1 contrast (WCAG AA passes).

Color values

HEX	#182D3C
RGB	rgb(24, 45, 60)
HSL	hsl(205, 43%, 16%)
HSV	hsv(205, 60%, 24%)
CMYK	cmyk(60%, 25%, 0%, 76.5%)
CIE-LAB	lab(17.45, -3.19, -12.11)
CIE-LCH	lch(17.45, 12.53, 255.25°)
OKLab	oklab(28.69% -0.0187 -0.0338)
OKLCH	oklch(28.69% 0.039 241)
XYZ	xyz(2.1304, 2.3970, 4.6245)
Luminance	0.0240 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D3C #3C2718

analogous

#183C39 #182D3C #181B3C

triadic

#182D3C #3C182D #2D3C18

tetradic

#182D3C #39183C #3C2718 #1B3C18

square

#182D3C #39183C #3C2718 #1B3C18

split-complementary

#182D3C #3C181B #3C3918

monochromatic

#091016 #091016 #182D3C #294E68 #3B6F93

Accessibility & contrast

On white

14.19

#182D3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#182D3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D3C

14.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D3C	#FFFFFF	#000000	##FFFFFF
##182D3C	1.00	14.19	1.48	14.19
#FFFFFF	14.19	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#262D3D

Deuteranopia (green-blind)

#22293C

Tritanopia (blue-blind)

#053132

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #182d3c;
/* rgb */ color: rgb(24, 45, 60);
/* oklch */ color: oklch(28.7% 0.039 241.0);

Tailwind

colors: {
  custom: {
    50: '#586571',
    500: '#182d3c',
    950: '#000000',
  },
}

SCSS

$custom: #182d3c;
$custom-light: #586571;
$custom-dark: #000000;

JSON

{
  "hex": "#182d3c",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 60
  },
  "hsl": {
    "h": 205,
    "s": 42.857,
    "l": 16.471
  },
  "oklch": {
    "l": 0.2869,
    "c": 0.03863,
    "h": 241
  },
  "luminance": 0.02397
}

Semantic roles & 50–950 ramp

primary

#182D3C

secondary

#72543E

accent

#8955D3

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030507

muted

#787A7A

Preview Lab

Preview with #182D3C

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

Preview Lab → · Contrast checker → · Palette generator →