#183B05#183B05

#183B05 is a dark, moderate yellow-green. Relative luminance 0.033; OKLCH L 31.4% C 0.089 H 137.2°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#183B05
RGB	rgb(24, 59, 5)
HSL	hsl(99, 84%, 13%)
HSV	hsv(99, 92%, 23%)
CMYK	cmyk(59.3%, 0%, 91.5%, 76.9%)
CIE-LAB	lab(21.33, -23.61, 27.00)
CIE-LCH	lch(21.33, 35.87, 131.16°)
OKLab	oklab(31.4% -0.0656 0.0607)
OKLCH	oklch(31.4% 0.089 137.2)
XYZ	xyz(1.9680, 3.3329, 0.6832)
Luminance	0.0333 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183B05 #28053B

analogous

#333B05 #183B05 #053B0D

triadic

#183B05 #05183B #3B0518

tetradic

#183B05 #05333B #28053B #3B0D05

square

#183B05 #05333B #28053B #3B0D05

split-complementary

#183B05 #0D053B #3B0533

monochromatic

#0B1C02 #0B1C02 #183B05 #2F730A #46AC0F

Accessibility & contrast

On white

12.60

#183B05 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#183B05 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183B05

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183B05	#FFFFFF	#000000	##FFFFFF
##183B05	1.00	12.60	1.67	12.60
#FFFFFF	12.60	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3500

Deuteranopia (green-blind)

#39320B

Tritanopia (blue-blind)

#163831

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #183b05;
/* rgb */ color: rgb(24, 59, 5);
/* oklch */ color: oklch(31.4% 0.089 137.2);

Tailwind

colors: {
  custom: {
    50: '#5a714a',
    500: '#183b05',
    950: '#000000',
  },
}

SCSS

$custom: #183b05;
$custom-light: #5a714a;
$custom-dark: #000000;

JSON

{
  "hex": "#183b05",
  "rgb": {
    "r": 24,
    "g": 59,
    "b": 5
  },
  "hsl": {
    "h": 98.889,
    "s": 84.375,
    "l": 12.549
  },
  "oklch": {
    "l": 0.314,
    "c": 0.08935,
    "h": 137.2
  },
  "luminance": 0.03333
}

Semantic roles & 50–950 ramp

primary

#183B05

secondary

#5C207C

accent

#2DFBB2

background

#F5F6F4

surface

#E9ECE7

border

#C5C7C3

text

#040701

muted

#797A77

Preview Lab

Preview with #183B05

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

Preview Lab → · Contrast checker → · Palette generator →