#183E41#183E41

#183E41 is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.8% C 0.043 H 202.3°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#183E41
RGB	rgb(24, 62, 65)
HSL	hsl(184, 46%, 17%)
HSV	hsv(184, 63%, 25%)
CMYK	cmyk(63.1%, 4.6%, 0%, 74.5%)
CIE-LAB	lab(23.74, -12.35, -5.93)
CIE-LCH	lch(23.74, 13.70, 205.63°)
OKLab	oklab(33.79% -0.0399 -0.0164)
OKLCH	oklch(33.79% 0.043 202.3)
XYZ	xyz(3.0531, 4.0208, 5.6152)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183E41 #411B18

analogous

#18412F #183E41 #182A41

triadic

#183E41 #41183E #3E4118

tetradic

#183E41 #2F1841 #411B18 #2A4118

square

#183E41 #2F1841 #411B18 #2A4118

split-complementary

#183E41 #41182A #412F18

monochromatic

#081516 #081516 #183E41 #29696E #39939A

Accessibility & contrast

On white

11.64

#183E41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#183E41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183E41

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183E41	#FFFFFF	#000000	##FFFFFF
##183E41	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393B41

Deuteranopia (green-blind)

#333641

Tritanopia (blue-blind)

#00403F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183e41;
/* rgb */ color: rgb(24, 62, 65);
/* oklch */ color: oklch(33.8% 0.043 202.3);

Tailwind

colors: {
  custom: {
    50: '#5a7375',
    500: '#183e41',
    950: '#000000',
  },
}

SCSS

$custom: #183e41;
$custom-light: #5a7375;
$custom-dark: #000000;

JSON

{
  "hex": "#183e41",
  "rgb": {
    "r": 24,
    "g": 62,
    "b": 65
  },
  "hsl": {
    "h": 184.39,
    "s": 46.067,
    "l": 17.451
  },
  "oklch": {
    "l": 0.33788,
    "c": 0.04312,
    "h": 202.3
  },
  "luminance": 0.04021
}

Semantic roles & 50–950 ramp

primary

#183E41

secondary

#78423D

accent

#5C52D6

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#040808

muted

#797B7B

Preview Lab

Preview with #183E41

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

Preview Lab → · Contrast checker → · Palette generator →