#183B04#183B04

#183B04 is a dark, moderate yellow-green. Relative luminance 0.033; OKLCH L 31.4% C 0.090 H 137.0°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#183B04
RGB	rgb(24, 59, 4)
HSL	hsl(98, 87%, 12%)
HSV	hsv(98, 93%, 23%)
CMYK	cmyk(59.3%, 0%, 93.2%, 76.9%)
CIE-LAB	lab(21.32, -23.70, 27.40)
CIE-LCH	lch(21.32, 36.23, 130.86°)
OKLab	oklab(31.39% -0.0659 0.0615)
OKLCH	oklch(31.39% 0.09 137)
XYZ	xyz(1.9625, 3.3307, 0.6543)
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

#183B04 #27043B

analogous

#343B04 #183B04 #043B0C

triadic

#183B04 #04183B #3B0418

tetradic

#183B04 #04343B #27043B #3B0C04

square

#183B04 #04343B #27043B #3B0C04

split-complementary

#183B04 #0C043B #3B0434

monochromatic

#0C1D02 #0C1D02 #183B04 #2F7408 #47AE0C

Accessibility & contrast

On white

12.60

#183B04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#183B04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183B04

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183B04	#FFFFFF	#000000	##FFFFFF
##183B04	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)

#39320A

Tritanopia (blue-blind)

#163831

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #183b04;
/* rgb */ color: rgb(24, 59, 4);
/* oklch */ color: oklch(31.4% 0.090 137.0);

Tailwind

colors: {
  custom: {
    50: '#5a714a',
    500: '#183b04',
    950: '#000000',
  },
}

SCSS

$custom: #183b04;
$custom-light: #5a714a;
$custom-dark: #000000;

JSON

{
  "hex": "#183b04",
  "rgb": {
    "r": 24,
    "g": 59,
    "b": 4
  },
  "hsl": {
    "h": 98.182,
    "s": 87.302,
    "l": 12.353
  },
  "oklch": {
    "l": 0.31391,
    "c": 0.09015,
    "h": 137
  },
  "luminance": 0.03331
}

Semantic roles & 50–950 ramp

primary

#183B04

secondary

#5A1E7D

accent

#2AFDB1

background

#F5F6F4

surface

#E9ECE7

border

#C5C7C3

text

#040701

muted

#797A77

Preview Lab

Preview with #183B04

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

Preview Lab → · Contrast checker → · Palette generator →