#183F2A#183F2A

#183F2A is a dark, muted green. Relative luminance 0.039; OKLCH L 33.3% C 0.058 H 157.4°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#183F2A
RGB	rgb(24, 63, 42)
HSL	hsl(148, 45%, 17%)
HSV	hsv(148, 62%, 25%)
CMYK	cmyk(61.9%, 0%, 33.3%, 75.3%)
CIE-LAB	lab(23.39, -19.68, 8.81)
CIE-LCH	lch(23.39, 21.57, 155.88°)
OKLab	oklab(33.27% -0.0538 0.0224)
OKLCH	oklch(33.27% 0.058 157.4)
XYZ	xyz(2.5719, 3.9161, 2.8104)
Luminance	0.0392 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183F2A #3F182D

analogous

#1A3F18 #183F2A #183F3E

triadic

#183F2A #2A183F #3F2A18

tetradic

#183F2A #181A3F #3F182D #3F3E18

square

#183F2A #181A3F #3F182D #3F3E18

split-complementary

#183F2A #3E183F #3F181A

monochromatic

#08160F #08160F #183F2A #296B48 #3A9865

Accessibility & contrast

On white

11.78

#183F2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#183F2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183F2A

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183F2A	#FFFFFF	#000000	##FFFFFF
##183F2A	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3A29

Deuteranopia (green-blind)

#39362B

Tritanopia (blue-blind)

#0C3F39

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183f2a;
/* rgb */ color: rgb(24, 63, 42);
/* oklch */ color: oklch(33.3% 0.058 157.4);

Tailwind

colors: {
  custom: {
    50: '#597463',
    500: '#183f2a',
    950: '#000000',
  },
}

SCSS

$custom: #183f2a;
$custom-light: #597463;
$custom-dark: #000000;

JSON

{
  "hex": "#183f2a",
  "rgb": {
    "r": 24,
    "g": 63,
    "b": 42
  },
  "hsl": {
    "h": 147.692,
    "s": 44.828,
    "l": 17.059
  },
  "oklch": {
    "l": 0.3327,
    "c": 0.05827,
    "h": 157.4
  },
  "luminance": 0.03916
}

Semantic roles & 50–950 ramp

primary

#183F2A

secondary

#753D5C

accent

#5399D5

background

#F5F7F5

surface

#E9EDEA

border

#C5C8C6

text

#040805

muted

#797B79

Preview Lab

Preview with #183F2A

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

Preview Lab → · Contrast checker → · Palette generator →