#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
RGBrgb(24, 51, 3)
HSLhsl(94, 89%, 11%)
HSVhsv(94, 94%, 20%)
CMYKcmyk(52.9%, 0%, 94.1%, 80%)
CIE-LABlab(18.22, -20.00, 24.29)
CIE-LCHlch(18.22, 31.46, 129.47°)
OKLaboklab(28.84% -0.0561 0.0565)
OKLCHoklch(28.84% 0.08 134.8)
XYZxyz(1.5769, 2.5683, 0.4988)
Luminance0.0257 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

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
##1833031.0013.871.5113.87
#FFFFFF13.871.0021.001.00
#0000001.5121.001.0021.00
##FFFFFF13.871.0021.001.00

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 →

#183303 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva