#183F03#183F03

#183F03 is a dark, moderate yellow-green. Relative luminance 0.038; OKLCH L 32.6% C 0.096 H 137.5°. Best body text is #FFFFFF at 11.99:1 contrast (WCAG AA passes).

Color values

HEX	#183F03
RGB	rgb(24, 63, 3)
HSL	hsl(99, 91%, 13%)
HSV	hsv(99, 95%, 25%)
CMYK	cmyk(61.9%, 0%, 95.2%, 75.3%)
CIE-LAB	lab(22.85, -25.58, 29.43)
CIE-LCH	lch(22.85, 38.99, 131.01°)
OKLab	oklab(32.65% -0.071 0.0651)
OKLCH	oklch(32.65% 0.096 137.5)
XYZ	xyz(2.1706, 3.7556, 0.6967)
Luminance	0.0376 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 1.82

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183F03 #2A033F

analogous

#363F03 #183F03 #033F0C

triadic

#183F03 #03183F #3F0318

tetradic

#183F03 #03363F #2A033F #3F0C03

square

#183F03 #03363F #2A033F #3F0C03

split-complementary

#183F03 #0C033F #3F0336

monochromatic

#0B1D01 #0B1D01 #183F03 #2E7906 #45B409

Accessibility & contrast

On white

11.99

#183F03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#183F03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183F03

11.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183F03	#FFFFFF	#000000	##FFFFFF
##183F03	1.00	11.99	1.75	11.99
#FFFFFF	11.99	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413800

Deuteranopia (green-blind)

#3D350A

Tritanopia (blue-blind)

#153C34

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #183f03;
/* rgb */ color: rgb(24, 63, 3);
/* oklch */ color: oklch(32.6% 0.096 137.5);

Tailwind

colors: {
  custom: {
    50: '#5b744a',
    500: '#183f03',
    950: '#000000',
  },
}

SCSS

$custom: #183f03;
$custom-light: #5b744a;
$custom-dark: #000000;

JSON

{
  "hex": "#183f03",
  "rgb": {
    "r": 24,
    "g": 63,
    "b": 3
  },
  "hsl": {
    "h": 99,
    "s": 90.909,
    "l": 12.941
  },
  "oklch": {
    "l": 0.32645,
    "c": 0.09638,
    "h": 137.5
  },
  "luminance": 0.03756
}

Semantic roles & 50–950 ramp

primary

#183F03

secondary

#5E1D81

accent

#29FFB4

background

#F5F7F4

surface

#E9EDE7

border

#C5C8C3

text

#040801

muted

#797B77

Preview Lab

Preview with #183F03

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

Preview Lab → · Contrast checker → · Palette generator →