#183B38#183B38

#183B38 is a dark, muted teal. Relative luminance 0.036; OKLCH L 32.5% C 0.041 H 187.9°. Best body text is #FFFFFF at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#183B38
RGB	rgb(24, 59, 56)
HSL	hsl(175, 42%, 16%)
HSV	hsv(175, 59%, 23%)
CMYK	cmyk(59.3%, 0%, 5.1%, 76.9%)
CIE-LAB	lab(22.33, -13.52, -2.01)
CIE-LCH	lch(22.33, 13.66, 188.45°)
OKLab	oklab(32.54% -0.0405 -0.0056)
OKLCH	oklch(32.54% 0.041 187.9)
XYZ	xyz(2.6542, 3.6074, 4.2970)
Luminance	0.0361 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183B38 #3B181B

analogous

#183B27 #183B38 #182D3B

triadic

#183B38 #38183B #3B3818

tetradic

#183B38 #27183B #3B181B #2D3B18

square

#183B38 #27183B #3B181B #2D3B18

split-complementary

#183B38 #3B182D #3B2718

monochromatic

#091615 #091615 #183B38 #2A6761 #3B928B

Accessibility & contrast

On white

12.20

#183B38 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#183B38 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183B38

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183B38	#FFFFFF	#000000	##FFFFFF
##183B38	1.00	12.20	1.72	12.20
#FFFFFF	12.20	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383838

Deuteranopia (green-blind)

#323438

Tritanopia (blue-blind)

#033C3A

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #183b38;
/* rgb */ color: rgb(24, 59, 56);
/* oklch */ color: oklch(32.5% 0.041 187.9);

Tailwind

colors: {
  custom: {
    50: '#59716e',
    500: '#183b38',
    950: '#000000',
  },
}

SCSS

$custom: #183b38;
$custom-light: #59716e;
$custom-dark: #000000;

JSON

{
  "hex": "#183b38",
  "rgb": {
    "r": 24,
    "g": 59,
    "b": 56
  },
  "hsl": {
    "h": 174.857,
    "s": 42.169,
    "l": 16.275
  },
  "oklch": {
    "l": 0.32541,
    "c": 0.04091,
    "h": 187.9
  },
  "luminance": 0.03608
}

Semantic roles & 50–950 ramp

primary

#183B38

secondary

#713E42

accent

#5660D2

background

#F5F6F6

surface

#E9ECEB

border

#C5C7C6

text

#040707

muted

#797A7A

Preview Lab

Preview with #183B38

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

Preview Lab → · Contrast checker → · Palette generator →