#183C43#183C43

#183C43 is a dark, muted teal. Relative luminance 0.038; OKLCH L 33.3% C 0.043 H 212.1°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#183C43
RGB	rgb(24, 60, 67)
HSL	hsl(190, 47%, 18%)
HSV	hsv(190, 64%, 26%)
CMYK	cmyk(64.2%, 10.4%, 0%, 73.7%)
CIE-LAB	lab(23.10, -10.45, -8.22)
CIE-LCH	lch(23.10, 13.29, 218.20°)
OKLab	oklab(33.3% -0.0362 -0.0228)
OKLCH	oklch(33.3% 0.043 212.1)
XYZ	xyz(3.0053, 3.8309, 5.8902)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183C43 #431F18

analogous

#184334 #183C43 #182643

triadic

#183C43 #43183C #3C4318

tetradic

#183C43 #341843 #431F18 #264318

square

#183C43 #341843 #431F18 #264318

split-complementary

#183C43 #431826 #433418

monochromatic

#081417 #081417 #183C43 #286470 #388D9D

Accessibility & contrast

On white

11.89

#183C43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#183C43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183C43

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183C43	#FFFFFF	#000000	##FFFFFF
##183C43	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363A43

Deuteranopia (green-blind)

#303543

Tritanopia (blue-blind)

#003F3E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #183c43;
/* rgb */ color: rgb(24, 60, 67);
/* oklch */ color: oklch(33.3% 0.043 212.1);

Tailwind

colors: {
  custom: {
    50: '#5a7177',
    500: '#183c43',
    950: '#000000',
  },
}

SCSS

$custom: #183c43;
$custom-light: #5a7177;
$custom-dark: #000000;

JSON

{
  "hex": "#183c43",
  "rgb": {
    "r": 24,
    "g": 60,
    "b": 67
  },
  "hsl": {
    "h": 189.767,
    "s": 47.253,
    "l": 17.843
  },
  "oklch": {
    "l": 0.33303,
    "c": 0.04279,
    "h": 212.1
  },
  "luminance": 0.03831
}

Semantic roles & 50–950 ramp

primary

#183C43

secondary

#7A473D

accent

#6751D7

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040708

muted

#797A7B

Preview Lab

Preview with #183C43

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

Preview Lab → · Contrast checker → · Palette generator →