#183B23#183B23

#183B23 is a dark, muted green. Relative luminance 0.034; OKLCH L 31.9% C 0.059 H 151.9°. Best body text is #FFFFFF at 12.44:1 contrast (WCAG AA passes).

Color values

HEX	#183B23
RGB	rgb(24, 59, 35)
HSL	hsl(139, 42%, 16%)
HSV	hsv(139, 59%, 23%)
CMYK	cmyk(59.3%, 0%, 40.7%, 76.9%)
CIE-LAB	lab(21.74, -19.23, 11.12)
CIE-LCH	lch(21.74, 22.22, 149.95°)
OKLab	oklab(31.87% -0.0523 0.0279)
OKLCH	oklch(31.87% 0.059 151.9)
XYZ	xyz(2.2439, 3.4433, 2.1362)
Luminance	0.0344 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Hunter Green (survey)

#0B4008

ΔE00 8.45

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183B23 #3B1830

analogous

#1F3B18 #183B23 #183B35

triadic

#183B23 #23183B #3B2318

tetradic

#183B23 #181F3B #3B1830 #3B3518

square

#183B23 #181F3B #3B1830 #3B3518

split-complementary

#183B23 #35183B #3B181F

monochromatic

#09160D #09160D #183B23 #2A673D #3B9257

Accessibility & contrast

On white

12.44

#183B23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#183B23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183B23

12.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183B23	#FFFFFF	#000000	##FFFFFF
##183B23	1.00	12.44	1.69	12.44
#FFFFFF	12.44	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3621

Deuteranopia (green-blind)

#363324

Tritanopia (blue-blind)

#103A35

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #183b23;
/* rgb */ color: rgb(24, 59, 35);
/* oklch */ color: oklch(31.9% 0.059 151.9);

Tailwind

colors: {
  custom: {
    50: '#58715e',
    500: '#183b23',
    950: '#000000',
  },
}

SCSS

$custom: #183b23;
$custom-light: #58715e;
$custom-dark: #000000;

JSON

{
  "hex": "#183b23",
  "rgb": {
    "r": 24,
    "g": 59,
    "b": 35
  },
  "hsl": {
    "h": 138.857,
    "s": 42.169,
    "l": 16.275
  },
  "oklch": {
    "l": 0.31866,
    "c": 0.05925,
    "h": 151.9
  },
  "luminance": 0.03443
}

Semantic roles & 50–950 ramp

primary

#183B23

secondary

#713E61

accent

#56ABD2

background

#F5F6F5

surface

#E9ECE9

border

#C5C7C5

text

#030704

muted

#787A79

Preview Lab

Preview with #183B23

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

Preview Lab → · Contrast checker → · Palette generator →