#183F36#183F36

#183F36 is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.6% C 0.047 H 175.9°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#183F36
RGB	rgb(24, 63, 54)
HSL	hsl(166, 45%, 17%)
HSV	hsv(166, 62%, 25%)
CMYK	cmyk(61.9%, 0%, 14.3%, 75.3%)
CIE-LAB	lab(23.72, -16.43, 1.37)
CIE-LCH	lch(23.72, 16.49, 175.25°)
OKLab	oklab(33.65% -0.0471 0.0034)
OKLCH	oklch(33.65% 0.047 175.9)
XYZ	xyz(2.8198, 4.0153, 4.1157)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183F36 #3F1821

analogous

#183F23 #183F36 #18353F

triadic

#183F36 #36183F #3F3618

tetradic

#183F36 #23183F #3F1821 #353F18

square

#183F36 #23183F #3F1821 #353F18

split-complementary

#183F36 #3F1835 #3F2318

monochromatic

#081613 #081613 #183F36 #296B5C #3A9882

Accessibility & contrast

On white

11.65

#183F36 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#183F36 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183F36

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183F36	#FFFFFF	#000000	##FFFFFF
##183F36	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3B36

Deuteranopia (green-blind)

#373737

Tritanopia (blue-blind)

#03403C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183f36;
/* rgb */ color: rgb(24, 63, 54);
/* oklch */ color: oklch(33.6% 0.047 175.9);

Tailwind

colors: {
  custom: {
    50: '#59746c',
    500: '#183f36',
    950: '#000000',
  },
}

SCSS

$custom: #183f36;
$custom-light: #59746c;
$custom-dark: #000000;

JSON

{
  "hex": "#183f36",
  "rgb": {
    "r": 24,
    "g": 63,
    "b": 54
  },
  "hsl": {
    "h": 166.154,
    "s": 44.828,
    "l": 17.059
  },
  "oklch": {
    "l": 0.33648,
    "c": 0.0472,
    "h": 175.9
  },
  "luminance": 0.04016
}

Semantic roles & 50–950 ramp

primary

#183F36

secondary

#753D4A

accent

#5371D5

background

#F5F7F6

surface

#E9EDEB

border

#C5C8C6

text

#040807

muted

#797B7A

Preview Lab

Preview with #183F36

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

Preview Lab → · Contrast checker → · Palette generator →