#1B2500#1B2500

#1B2500 is a very dark, moderate yellow-green. Relative luminance 0.016; OKLCH L 24.6% C 0.061 H 123.5°. Best body text is #FFFFFF at 16.02:1 contrast (WCAG AA passes).

Color values

HEX#1B2500
RGBrgb(27, 37, 0)
HSLhsl(76, 100%, 7%)
HSVhsv(76, 100%, 15%)
CMYKcmyk(27%, 0%, 100%, 85.5%)
CIE-LABlab(12.96, -11.27, 18.89)
CIE-LCHlch(12.96, 21.99, 120.82°)
OKLaboklab(24.59% -0.0335 0.0506)
OKLCHoklch(24.59% 0.061 123.5)
XYZxyz(1.1136, 1.5561, 0.2417)
Luminance0.0156 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B2500 #0A0025
analogous
#251D00 #1B2500 #092500
triadic
#1B2500 #001B25 #25001B
tetradic
#1B2500 #00251D #0A0025 #250009
square
#1B2500 #00251D #0A0025 #250009
split-complementary
#1B2500 #000925 #1D0025
monochromatic
#161F00 #161F00 #1B2500 #486200 #749F00

Accessibility & contrast

On white

16.02
#1B2500 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.31
#1B2500 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2500
16.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B2500#FFFFFF#000000##FFFFFF
##1B25001.0016.021.3116.02
#FFFFFF16.021.0021.001.00
#0000001.3121.001.0021.00
##FFFFFF16.021.0021.001.00

Color blindness preview

Protanopia (red-blind)
#282200
Deuteranopia (green-blind)
#272102
Tritanopia (blue-blind)
#1D221E
Achromatopsia (no color)
#212121

Design tokens & code

CSS
--color: #1b2500;
/* rgb */ color: rgb(27, 37, 0);
/* oklch */ color: oklch(24.6% 0.061 123.5);
Tailwind
colors: {
  custom: {
    50: '#575f46',
    500: '#1b2500',
    950: '#000000',
  },
}
SCSS
$custom: #1b2500;
$custom-light: #575f46;
$custom-dark: #000000;
JSON
{
  "hex": "#1b2500",
  "rgb": {
    "r": 27,
    "g": 37,
    "b": 0
  },
  "hsl": {
    "h": 76.216,
    "s": 100,
    "l": 7.255
  },
  "oklch": {
    "l": 0.24586,
    "c": 0.06065,
    "h": 123.5
  },
  "luminance": 0.01556
}

Semantic roles & 50–950 ramp

primary
#1B2500
secondary
#2C136D
accent
#29FF63
background
#F5F5F3
surface
#E9E9E5
border
#C5C5C1
text
#030400
muted
#787977

Preview Lab

Preview with #1B2500

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

Preview Lab → · Contrast checker → · Palette generator →

#1B2500 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva