#183E45#183E45

#183E45 is a dark, muted teal. Relative luminance 0.041; OKLCH L 34.0% C 0.044 H 211.4°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#183E45
RGB	rgb(24, 62, 69)
HSL	hsl(189, 48%, 18%)
HSV	hsv(189, 65%, 27%)
CMYK	cmyk(65.2%, 10.1%, 0%, 72.9%)
CIE-LAB	lab(23.90, -10.98, -8.35)
CIE-LCH	lch(23.90, 13.79, 217.26°)
OKLab	oklab(33.97% -0.0379 -0.0231)
OKLCH	oklch(33.97% 0.044 211.4)
XYZ	xyz(3.1731, 4.0688, 6.2472)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183E45 #451F18

analogous

#184535 #183E45 #182745

triadic

#183E45 #45183E #3E4518

tetradic

#183E45 #351845 #451F18 #274518

square

#183E45 #351845 #451F18 #274518

split-complementary

#183E45 #451827 #453518

monochromatic

#081417 #081518 #183E45 #286772 #3890A0

Accessibility & contrast

On white

11.58

#183E45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#183E45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183E45

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183E45	#FFFFFF	#000000	##FFFFFF
##183E45	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383C45

Deuteranopia (green-blind)

#313745

Tritanopia (blue-blind)

#004140

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #183e45;
/* rgb */ color: rgb(24, 62, 69);
/* oklch */ color: oklch(34.0% 0.044 211.4);

Tailwind

colors: {
  custom: {
    50: '#5a7378',
    500: '#183e45',
    950: '#000000',
  },
}

SCSS

$custom: #183e45;
$custom-light: #5a7378;
$custom-dark: #000000;

JSON

{
  "hex": "#183e45",
  "rgb": {
    "r": 24,
    "g": 62,
    "b": 69
  },
  "hsl": {
    "h": 189.333,
    "s": 48.387,
    "l": 18.235
  },
  "oklch": {
    "l": 0.33967,
    "c": 0.0444,
    "h": 211.4
  },
  "luminance": 0.04069
}

Semantic roles & 50–950 ramp

primary

#183E45

secondary

#7C473D

accent

#6550D8

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040809

muted

#797B7B

Preview Lab

Preview with #183E45

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

Preview Lab → · Contrast checker → · Palette generator →