#283B09#283B09

#283B09 is a dark, moderate yellow-green. Relative luminance 0.036; OKLCH L 32.5% C 0.076 H 128.5°. Best body text is #FFFFFF at 12.21:1 contrast (WCAG AA passes).

Color values

HEX#283B09
RGBrgb(40, 59, 9)
HSLhsl(83, 74%, 13%)
HSVhsv(83, 85%, 23%)
CMYKcmyk(32.2%, 0%, 84.7%, 76.9%)
CIE-LABlab(22.30, -16.61, 26.69)
CIE-LCHlch(22.30, 31.44, 121.90°)
OKLaboklab(32.45% -0.0475 0.0598)
OKLCHoklch(32.45% 0.076 128.5)
XYZxyz(2.4883, 3.5987, 0.8219)
Luminance0.0360 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#283B09 #1C093B
analogous
#3B3509 #283B09 #0F3B09
triadic
#283B09 #09283B #3B0928
tetradic
#283B09 #093B35 #1C093B #3B090F
square
#283B09 #093B35 #1C093B #3B090F
split-complementary
#283B09 #090F3B #35093B
monochromatic
#121B04 #121B04 #283B09 #4C7011 #70A519

Accessibility & contrast

On white

12.21
#283B09 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.72
#283B09 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283B09
12.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##283B09#FFFFFF#000000##FFFFFF
##283B091.0012.211.7212.21
#FFFFFF12.211.0021.001.00
#0000001.7221.001.0021.00
##FFFFFF12.211.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3E3602
Deuteranopia (green-blind)
#3C350E
Tritanopia (blue-blind)
#2A3831
Achromatopsia (no color)
#353535

Design tokens & code

CSS
--color: #283b09;
/* rgb */ color: rgb(40, 59, 9);
/* oklch */ color: oklch(32.5% 0.076 128.5);
Tailwind
colors: {
  custom: {
    50: '#64714c',
    500: '#283b09',
    950: '#000000',
  },
}
SCSS
$custom: #283b09;
$custom-light: #64714c;
$custom-dark: #000000;
JSON
{
  "hex": "#283b09",
  "rgb": {
    "r": 40,
    "g": 59,
    "b": 9
  },
  "hsl": {
    "h": 82.8,
    "s": 73.529,
    "l": 13.333
  },
  "oklch": {
    "l": 0.32453,
    "c": 0.07638,
    "h": 128.5
  },
  "luminance": 0.03599
}

Semantic roles & 50–950 ramp

primary
#283B09
secondary
#462779
accent
#38F07E
background
#F6F6F4
surface
#EBECE7
border
#C6C7C3
text
#050701
muted
#7A7A77

Preview Lab

Preview with #283B09

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

Preview Lab → · Contrast checker → · Palette generator →

#283B09 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva