#183F2B#183F2B

#183F2B is a dark, muted green. Relative luminance 0.039; OKLCH L 33.3% C 0.057 H 158.6°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#183F2B
RGB	rgb(24, 63, 43)
HSL	hsl(149, 45%, 17%)
HSV	hsv(149, 62%, 25%)
CMYK	cmyk(61.9%, 0%, 31.7%, 75.3%)
CIE-LAB	lab(23.42, -19.44, 8.19)
CIE-LCH	lch(23.42, 21.09, 157.15°)
OKLab	oklab(33.3% -0.0532 0.0209)
OKLCH	oklch(33.3% 0.057 158.6)
XYZ	xyz(2.5900, 3.9234, 2.9058)
Luminance	0.0392 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183F2B #3F182C

analogous

#183F18 #183F2B #183F3F

triadic

#183F2B #2B183F #3F2B18

tetradic

#183F2B #18183F #3F182C #3F3F18

square

#183F2B #18183F #3F182C #3F3F18

split-complementary

#183F2B #3F183F #3F1818

monochromatic

#08160F #08160F #183F2B #296B49 #3A9867

Accessibility & contrast

On white

11.77

#183F2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#183F2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183F2B

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183F2B	#FFFFFF	#000000	##FFFFFF
##183F2B	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3A2A

Deuteranopia (green-blind)

#39362C

Tritanopia (blue-blind)

#0B3F3A

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183f2b;
/* rgb */ color: rgb(24, 63, 43);
/* oklch */ color: oklch(33.3% 0.057 158.6);

Tailwind

colors: {
  custom: {
    50: '#597464',
    500: '#183f2b',
    950: '#000000',
  },
}

SCSS

$custom: #183f2b;
$custom-light: #597464;
$custom-dark: #000000;

JSON

{
  "hex": "#183f2b",
  "rgb": {
    "r": 24,
    "g": 63,
    "b": 43
  },
  "hsl": {
    "h": 149.231,
    "s": 44.828,
    "l": 17.059
  },
  "oklch": {
    "l": 0.33298,
    "c": 0.05719,
    "h": 158.6
  },
  "luminance": 0.03924
}

Semantic roles & 50–950 ramp

primary

#183F2B

secondary

#753D5A

accent

#5396D5

background

#F5F7F5

surface

#E9EDEA

border

#C5C8C6

text

#040805

muted

#797B79

Preview Lab

Preview with #183F2B

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

Preview Lab → · Contrast checker → · Palette generator →