#183303#183303

#183303 is a dark, moderate yellow-green. Relative luminance 0.026; OKLCH L 28.8% C 0.080 H 134.8°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#183303
RGB	rgb(24, 51, 3)
HSL	hsl(94, 89%, 11%)
HSV	hsv(94, 94%, 20%)
CMYK	cmyk(52.9%, 0%, 94.1%, 80%)
CIE-LAB	lab(18.22, -20.00, 24.29)
CIE-LCH	lch(18.22, 31.46, 129.47°)
OKLab	oklab(28.84% -0.0561 0.0565)
OKLCH	oklch(28.84% 0.08 134.8)
XYZ	xyz(1.5769, 2.5683, 0.4988)
Luminance	0.0257 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Forest Green (survey)

#06470C

ΔE00 7.51

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183303 #1E0333

analogous

#303303 #183303 #033306

triadic

#183303 #031833 #330318

tetradic

#183303 #033033 #1E0333 #330603

square

#183303 #033033 #1E0333 #330603

split-complementary

#183303 #060333 #330330

monochromatic

#0E1D02 #0E1D02 #183303 #336D06 #4EA70A

Accessibility & contrast

On white

13.87

#183303 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#183303 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183303

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183303	#FFFFFF	#000000	##FFFFFF
##183303	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#352E00

Deuteranopia (green-blind)

#322C07

Tritanopia (blue-blind)

#17312A

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #183303;
/* rgb */ color: rgb(24, 51, 3);
/* oklch */ color: oklch(28.8% 0.080 134.8);

Tailwind

colors: {
  custom: {
    50: '#586b48',
    500: '#183303',
    950: '#000000',
  },
}

SCSS

$custom: #183303;
$custom-light: #586b48;
$custom-dark: #000000;

JSON

{
  "hex": "#183303",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 3
  },
  "hsl": {
    "h": 93.75,
    "s": 88.889,
    "l": 10.588
  },
  "oklch": {
    "l": 0.28839,
    "c": 0.07965,
    "h": 134.8
  },
  "luminance": 0.02568
}

Semantic roles & 50–950 ramp

primary

#183303

secondary

#4F1C76

accent

#29FFA1

background

#F5F6F4

surface

#E9EBE6

border

#C5C6C2

text

#030601

muted

#787A77

Preview Lab

Preview with #183303

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

Preview Lab → · Contrast checker → · Palette generator →