#183F33#183F33

#183F33 is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.5% C 0.049 H 170.4°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#183F33
RGB	rgb(24, 63, 51)
HSL	hsl(162, 45%, 17%)
HSV	hsv(162, 62%, 25%)
CMYK	cmyk(61.9%, 0%, 19%, 75.3%)
CIE-LAB	lab(23.63, -17.30, 3.22)
CIE-LCH	lch(23.63, 17.60, 169.44°)
OKLab	oklab(33.54% -0.0487 0.0082)
OKLCH	oklch(33.54% 0.049 170.4)
XYZ	xyz(2.7515, 3.9880, 3.7561)
Luminance	0.0399 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183F33 #3F1824

analogous

#183F1F #183F33 #18383F

triadic

#183F33 #33183F #3F3318

tetradic

#183F33 #1F183F #3F1824 #383F18

square

#183F33 #1F183F #3F1824 #383F18

split-complementary

#183F33 #3F1838 #3F1F18

monochromatic

#081612 #081612 #183F33 #296B57 #3A987B

Accessibility & contrast

On white

11.68

#183F33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#183F33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183F33

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183F33	#FFFFFF	#000000	##FFFFFF
##183F33	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3B32

Deuteranopia (green-blind)

#373734

Tritanopia (blue-blind)

#063F3C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183f33;
/* rgb */ color: rgb(24, 63, 51);
/* oklch */ color: oklch(33.5% 0.049 170.4);

Tailwind

colors: {
  custom: {
    50: '#59746a',
    500: '#183f33',
    950: '#000000',
  },
}

SCSS

$custom: #183f33;
$custom-light: #59746a;
$custom-dark: #000000;

JSON

{
  "hex": "#183f33",
  "rgb": {
    "r": 24,
    "g": 63,
    "b": 51
  },
  "hsl": {
    "h": 161.538,
    "s": 44.828,
    "l": 17.059
  },
  "oklch": {
    "l": 0.33544,
    "c": 0.04944,
    "h": 170.4
  },
  "luminance": 0.03988
}

Semantic roles & 50–950 ramp

primary

#183F33

secondary

#753D4F

accent

#537BD5

background

#F5F7F6

surface

#E9EDEB

border

#C5C8C6

text

#040806

muted

#797B7A

Preview Lab

Preview with #183F33

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

Preview Lab → · Contrast checker → · Palette generator →