#183F2D#183F2D

#183F2D is a dark, muted teal. Relative luminance 0.039; OKLCH L 33.4% C 0.055 H 161.2°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#183F2D
RGB	rgb(24, 63, 45)
HSL	hsl(152, 45%, 17%)
HSV	hsv(152, 62%, 25%)
CMYK	cmyk(61.9%, 0%, 28.6%, 75.3%)
CIE-LAB	lab(23.47, -18.93, 6.95)
CIE-LCH	lch(23.47, 20.17, 159.84°)
OKLab	oklab(33.36% -0.0521 0.0178)
OKLCH	oklch(33.36% 0.055 161.2)
XYZ	xyz(2.6276, 3.9384, 3.1038)
Luminance	0.0394 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183F2D #3F182A

analogous

#183F1A #183F2D #183E3F

triadic

#183F2D #2D183F #3F2D18

tetradic

#183F2D #1A183F #3F182A #3E3F18

square

#183F2D #1A183F #3F182A #3E3F18

split-complementary

#183F2D #3F183E #3F1A18

monochromatic

#081610 #081610 #183F2D #296B4D #3A986C

Accessibility & contrast

On white

11.75

#183F2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#183F2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183F2D

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183F2D	#FFFFFF	#000000	##FFFFFF
##183F2D	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3A2C

Deuteranopia (green-blind)

#38362E

Tritanopia (blue-blind)

#0A3F3A

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183f2d;
/* rgb */ color: rgb(24, 63, 45);
/* oklch */ color: oklch(33.4% 0.055 161.2);

Tailwind

colors: {
  custom: {
    50: '#597465',
    500: '#183f2d',
    950: '#000000',
  },
}

SCSS

$custom: #183f2d;
$custom-light: #597465;
$custom-dark: #000000;

JSON

{
  "hex": "#183f2d",
  "rgb": {
    "r": 24,
    "g": 63,
    "b": 45
  },
  "hsl": {
    "h": 152.308,
    "s": 44.828,
    "l": 17.059
  },
  "oklch": {
    "l": 0.33356,
    "c": 0.05506,
    "h": 161.2
  },
  "luminance": 0.03939
}

Semantic roles & 50–950 ramp

primary

#183F2D

secondary

#753D57

accent

#538FD5

background

#F5F7F6

surface

#E9EDEB

border

#C5C8C6

text

#040805

muted

#797B7A

Preview Lab

Preview with #183F2D

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

Preview Lab → · Contrast checker → · Palette generator →