#183B03#183B03

#183B03 is a dark, moderate yellow-green. Relative luminance 0.033; OKLCH L 31.4% C 0.091 H 136.8°. Best body text is #FFFFFF at 12.61:1 contrast (WCAG AA passes).

Color values

HEX	#183B03
RGB	rgb(24, 59, 3)
HSL	hsl(98, 90%, 12%)
HSV	hsv(98, 95%, 23%)
CMYK	cmyk(59.3%, 0%, 94.9%, 76.9%)
CIE-LAB	lab(21.31, -23.79, 27.80)
CIE-LCH	lch(21.31, 36.59, 130.56°)
OKLab	oklab(31.38% -0.0663 0.0623)
OKLCH	oklch(31.38% 0.091 136.8)
XYZ	xyz(1.9570, 3.3285, 0.6255)
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

#183B03 #26033B

analogous

#343B03 #183B03 #033B0A

triadic

#183B03 #03183B #3B0318

tetradic

#183B03 #03343B #26033B #3B0A03

square

#183B03 #03343B #26033B #3B0A03

split-complementary

#183B03 #0A033B #3B0334

monochromatic

#0C1D01 #0C1D01 #183B03 #307506 #47AF09

Accessibility & contrast

On white

12.61

#183B03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#183B03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183B03

12.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183B03	#FFFFFF	#000000	##FFFFFF
##183B03	1.00	12.61	1.67	12.61
#FFFFFF	12.61	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3500

Deuteranopia (green-blind)

#393209

Tritanopia (blue-blind)

#163831

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #183b03;
/* rgb */ color: rgb(24, 59, 3);
/* oklch */ color: oklch(31.4% 0.091 136.8);

Tailwind

colors: {
  custom: {
    50: '#5a7149',
    500: '#183b03',
    950: '#000000',
  },
}

SCSS

$custom: #183b03;
$custom-light: #5a7149;
$custom-dark: #000000;

JSON

{
  "hex": "#183b03",
  "rgb": {
    "r": 24,
    "g": 59,
    "b": 3
  },
  "hsl": {
    "h": 97.5,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.31381,
    "c": 0.09096,
    "h": 136.8
  },
  "luminance": 0.03329
}

Semantic roles & 50–950 ramp

primary

#183B03

secondary

#591C7E

accent

#29FFAF

background

#F5F6F4

surface

#E9ECE7

border

#C5C7C3

text

#040701

muted

#797A77

Preview Lab

Preview with #183B03

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

Preview Lab → · Contrast checker → · Palette generator →