#183A2B#183A2B

#183A2B is a dark, muted teal. Relative luminance 0.034; OKLCH L 31.8% C 0.049 H 162.8°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#183A2B
RGB	rgb(24, 58, 43)
HSL	hsl(154, 41%, 16%)
HSV	hsv(154, 59%, 23%)
CMYK	cmyk(58.6%, 0%, 25.9%, 77.3%)
CIE-LAB	lab(21.56, -16.74, 5.60)
CIE-LCH	lch(21.56, 17.65, 161.50°)
OKLab	oklab(31.79% -0.0463 0.0144)
OKLCH	oklch(31.79% 0.049 162.8)
XYZ	xyz(2.3256, 3.3945, 2.8177)
Luminance	0.0340 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183A2B #3A1827

analogous

#183A1A #183A2B #18383A

triadic

#183A2B #2B183A #3A2B18

tetradic

#183A2B #1A183A #3A1827 #383A18

square

#183A2B #1A183A #3A1827 #383A18

split-complementary

#183A2B #3A1838 #3A1A18

monochromatic

#091610 #091610 #183A2B #2A654B #3C916B

Accessibility & contrast

On white

12.51

#183A2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#183A2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183A2B

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183A2B	#FFFFFF	#000000	##FFFFFF
##183A2B	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39362A

Deuteranopia (green-blind)

#34322C

Tritanopia (blue-blind)

#0D3A36

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #183a2b;
/* rgb */ color: rgb(24, 58, 43);
/* oklch */ color: oklch(31.8% 0.049 162.8);

Tailwind

colors: {
  custom: {
    50: '#587064',
    500: '#183a2b',
    950: '#000000',
  },
}

SCSS

$custom: #183a2b;
$custom-light: #587064;
$custom-dark: #000000;

JSON

{
  "hex": "#183a2b",
  "rgb": {
    "r": 24,
    "g": 58,
    "b": 43
  },
  "hsl": {
    "h": 153.529,
    "s": 41.463,
    "l": 16.078
  },
  "oklch": {
    "l": 0.31785,
    "c": 0.04852,
    "h": 162.8
  },
  "luminance": 0.03395
}

Semantic roles & 50–950 ramp

primary

#183A2B

secondary

#703E54

accent

#578DD1

background

#F5F6F5

surface

#E9ECEA

border

#C5C7C6

text

#030705

muted

#787A79

Preview Lab

Preview with #183A2B

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

Preview Lab → · Contrast checker → · Palette generator →