#183B2B#183B2B

#183B2B is a dark, muted teal. Relative luminance 0.035; OKLCH L 32.1% C 0.050 H 161.8°. Best body text is #FFFFFF at 12.36:1 contrast (WCAG AA passes).

Color values

HEX	#183B2B
RGB	rgb(24, 59, 43)
HSL	hsl(153, 42%, 16%)
HSV	hsv(153, 59%, 23%)
CMYK	cmyk(59.3%, 0%, 27.1%, 76.9%)
CIE-LAB	lab(21.93, -17.29, 6.12)
CIE-LCH	lch(21.93, 18.34, 160.50°)
OKLab	oklab(32.09% -0.0477 0.0157)
OKLCH	oklch(32.09% 0.05 161.8)
XYZ	xyz(2.3765, 3.4963, 2.8347)
Luminance	0.0350 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183B2B #3B1828

analogous

#183B1A #183B2B #183A3B

triadic

#183B2B #2B183B #3B2B18

tetradic

#183B2B #1A183B #3B1828 #3A3B18

square

#183B2B #1A183B #3B1828 #3A3B18

split-complementary

#183B2B #3B183A #3B1A18

monochromatic

#091610 #091610 #183B2B #2A674B #3B926A

Accessibility & contrast

On white

12.36

#183B2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#183B2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183B2B

12.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183B2B	#FFFFFF	#000000	##FFFFFF
##183B2B	1.00	12.36	1.70	12.36
#FFFFFF	12.36	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A372A

Deuteranopia (green-blind)

#35332C

Tritanopia (blue-blind)

#0C3B37

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #183b2b;
/* rgb */ color: rgb(24, 59, 43);
/* oklch */ color: oklch(32.1% 0.050 161.8);

Tailwind

colors: {
  custom: {
    50: '#587164',
    500: '#183b2b',
    950: '#000000',
  },
}

SCSS

$custom: #183b2b;
$custom-light: #587164;
$custom-dark: #000000;

JSON

{
  "hex": "#183b2b",
  "rgb": {
    "r": 24,
    "g": 59,
    "b": 43
  },
  "hsl": {
    "h": 152.571,
    "s": 42.169,
    "l": 16.275
  },
  "oklch": {
    "l": 0.32087,
    "c": 0.05026,
    "h": 161.8
  },
  "luminance": 0.03497
}

Semantic roles & 50–950 ramp

primary

#183B2B

secondary

#713E55

accent

#568FD2

background

#F5F6F5

surface

#E9ECEA

border

#C5C7C6

text

#030705

muted

#787A79

Preview Lab

Preview with #183B2B

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

Preview Lab → · Contrast checker → · Palette generator →