#183C33#183C33

#183C33 is a dark, muted teal. Relative luminance 0.037; OKLCH L 32.6% C 0.045 H 174.8°. Best body text is #FFFFFF at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#183C33
RGB	rgb(24, 60, 51)
HSL	hsl(165, 43%, 16%)
HSV	hsv(165, 60%, 24%)
CMYK	cmyk(60%, 0%, 15%, 76.5%)
CIE-LAB	lab(22.53, -15.62, 1.64)
CIE-LCH	lch(22.53, 15.71, 174.01°)
OKLab	oklab(32.65% -0.0446 0.0041)
OKLCH	oklch(32.65% 0.045 174.8)
XYZ	xyz(2.5898, 3.6647, 3.7022)
Luminance	0.0367 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183C33 #3C1821

analogous

#183C21 #183C33 #18333C

triadic

#183C33 #33183C #3C3318

tetradic

#183C33 #21183C #3C1821 #333C18

square

#183C33 #21183C #3C1821 #333C18

split-complementary

#183C33 #3C1833 #3C2118

monochromatic

#091613 #091613 #183C33 #296858 #3B937D

Accessibility & contrast

On white

12.12

#183C33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#183C33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183C33

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183C33	#FFFFFF	#000000	##FFFFFF
##183C33	1.00	12.12	1.73	12.12
#FFFFFF	12.12	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3833

Deuteranopia (green-blind)

#343434

Tritanopia (blue-blind)

#073D39

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #183c33;
/* rgb */ color: rgb(24, 60, 51);
/* oklch */ color: oklch(32.6% 0.045 174.8);

Tailwind

colors: {
  custom: {
    50: '#58726a',
    500: '#183c33',
    950: '#000000',
  },
}

SCSS

$custom: #183c33;
$custom-light: #58726a;
$custom-dark: #000000;

JSON

{
  "hex": "#183c33",
  "rgb": {
    "r": 24,
    "g": 60,
    "b": 51
  },
  "hsl": {
    "h": 165,
    "s": 42.857,
    "l": 16.471
  },
  "oklch": {
    "l": 0.3265,
    "c": 0.04483,
    "h": 174.8
  },
  "luminance": 0.03665
}

Semantic roles & 50–950 ramp

primary

#183C33

secondary

#723E4B

accent

#5575D3

background

#F5F6F6

surface

#E9ECEB

border

#C5C7C6

text

#030806

muted

#787B7A

Preview Lab

Preview with #183C33

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

Preview Lab → · Contrast checker → · Palette generator →