#183B2A#183B2A

#183B2A is a dark, muted teal. Relative luminance 0.035; OKLCH L 32.1% C 0.051 H 160.4°. Best body text is #FFFFFF at 12.37:1 contrast (WCAG AA passes).

Color values

HEX	#183B2A
RGB	rgb(24, 59, 42)
HSL	hsl(151, 42%, 16%)
HSV	hsv(151, 59%, 23%)
CMYK	cmyk(59.3%, 0%, 28.8%, 76.9%)
CIE-LAB	lab(21.90, -17.55, 6.75)
CIE-LCH	lch(21.90, 18.80, 158.96°)
OKLab	oklab(32.06% -0.0483 0.0173)
OKLCH	oklch(32.06% 0.051 160.4)
XYZ	xyz(2.3584, 3.4891, 2.7392)
Luminance	0.0349 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183B2A #3B1829

analogous

#183B19 #183B2A #183B3B

triadic

#183B2A #2A183B #3B2A18

tetradic

#183B2A #19183B #3B1829 #3B3B18

square

#183B2A #19183B #3B1829 #3B3B18

split-complementary

#183B2A #3B183B #3B1918

monochromatic

#09160F #09160F #183B2A #2A6749 #3B9268

Accessibility & contrast

On white

12.37

#183B2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#183B2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183B2A

12.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183B2A	#FFFFFF	#000000	##FFFFFF
##183B2A	1.00	12.37	1.70	12.37
#FFFFFF	12.37	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3729

Deuteranopia (green-blind)

#35332B

Tritanopia (blue-blind)

#0D3B36

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #183b2a;
/* rgb */ color: rgb(24, 59, 42);
/* oklch */ color: oklch(32.1% 0.051 160.4);

Tailwind

colors: {
  custom: {
    50: '#587163',
    500: '#183b2a',
    950: '#000000',
  },
}

SCSS

$custom: #183b2a;
$custom-light: #587163;
$custom-dark: #000000;

JSON

{
  "hex": "#183b2a",
  "rgb": {
    "r": 24,
    "g": 59,
    "b": 42
  },
  "hsl": {
    "h": 150.857,
    "s": 42.169,
    "l": 16.275
  },
  "oklch": {
    "l": 0.32057,
    "c": 0.05131,
    "h": 160.4
  },
  "luminance": 0.03489
}

Semantic roles & 50–950 ramp

primary

#183B2A

secondary

#713E57

accent

#5692D2

background

#F5F6F5

surface

#E9ECEA

border

#C5C7C6

text

#030705

muted

#787A79

Preview Lab

Preview with #183B2A

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

Preview Lab → · Contrast checker → · Palette generator →