#1B2B09#1B2B09

#1B2B09 is a dark, muted yellow-green. Relative luminance 0.020; OKLCH L 26.6% C 0.059 H 130.9°. Best body text is #FFFFFF at 15.04:1 contrast (WCAG AA passes).

Color values

HEX	#1B2B09
RGB	rgb(27, 43, 9)
HSL	hsl(88, 65%, 10%)
HSV	hsv(88, 79%, 17%)
CMYK	cmyk(37.2%, 0%, 79.1%, 83.1%)
CIE-LAB	lab(15.38, -13.74, 18.39)
CIE-LCH	lch(15.38, 22.95, 126.76°)
OKLab	oklab(26.59% -0.0386 0.0446)
OKLCH	oklch(26.59% 0.059 130.9)
XYZ	xyz(1.3652, 1.9804, 0.5687)
Luminance	0.0198 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2B09 #19092B

analogous

#2B2A09 #1B2B09 #0A2B09

triadic

#1B2B09 #091B2B #2B091B

tetradic

#1B2B09 #092B2A #19092B #2B090A

square

#1B2B09 #092B2A #19092B #2B090A

split-complementary

#1B2B09 #090A2B #2A092B

monochromatic

#101905 #101905 #1B2B09 #3B5E14 #5B901E

Accessibility & contrast

On white

15.04

#1B2B09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#1B2B09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2B09

15.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2B09	#FFFFFF	#000000	##FFFFFF
##1B2B09	1.00	15.04	1.40	15.04
#FFFFFF	15.04	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2705

Deuteranopia (green-blind)

#2B260C

Tritanopia (blue-blind)

#1C2924

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1b2b09;
/* rgb */ color: rgb(27, 43, 9);
/* oklch */ color: oklch(26.6% 0.059 130.9);

Tailwind

colors: {
  custom: {
    50: '#58644b',
    500: '#1b2b09',
    950: '#000000',
  },
}

SCSS

$custom: #1b2b09;
$custom-light: #58644b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2b09",
  "rgb": {
    "r": 27,
    "g": 43,
    "b": 9
  },
  "hsl": {
    "h": 88.235,
    "s": 65.385,
    "l": 10.196
  },
  "oklch": {
    "l": 0.26589,
    "c": 0.05902,
    "h": 130.9
  },
  "luminance": 0.0198
}

Semantic roles & 50–950 ramp

primary

#1B2B09

secondary

#462769

accent

#3FE88F

background

#F5F6F4

surface

#E9EBE7

border

#C5C6C3

text

#030501

muted

#787A77

Preview Lab

Preview with #1B2B09

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

Preview Lab → · Contrast checker → · Palette generator →