#1B3E09#1B3E09

#1B3E09 is a dark, moderate yellow-green. Relative luminance 0.037; OKLCH L 32.5% C 0.089 H 137.3°. Best body text is #FFFFFF at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#1B3E09
RGB	rgb(27, 62, 9)
HSL	hsl(100, 75%, 14%)
HSV	hsv(100, 85%, 24%)
CMYK	cmyk(56.5%, 0%, 85.5%, 75.7%)
CIE-LAB	lab(22.65, -23.57, 26.82)
CIE-LCH	lch(22.65, 35.70, 131.31°)
OKLab	oklab(32.53% -0.0653 0.0603)
OKLCH	oklch(32.53% 0.089 137.3)
XYZ	xyz(2.2239, 3.6978, 0.8550)
Luminance	0.0370 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3E09 #2C093E

analogous

#363E09 #1B3E09 #093E12

triadic

#1B3E09 #091B3E #3E091B

tetradic

#1B3E09 #09363E #2C093E #3E1209

square

#1B3E09 #09363E #2C093E #3E1209

split-complementary

#1B3E09 #12093E #3E0936

monochromatic

#0C1B04 #0C1B04 #1B3E09 #327311 #4AA919

Accessibility & contrast

On white

12.07

#1B3E09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1B3E09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3E09

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3E09	#FFFFFF	#000000	##FFFFFF
##1B3E09	1.00	12.07	1.74	12.07
#FFFFFF	12.07	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#403802

Deuteranopia (green-blind)

#3C350F

Tritanopia (blue-blind)

#193B34

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b3e09;
/* rgb */ color: rgb(27, 62, 9);
/* oklch */ color: oklch(32.5% 0.089 137.3);

Tailwind

colors: {
  custom: {
    50: '#5c734d',
    500: '#1b3e09',
    950: '#000000',
  },
}

SCSS

$custom: #1b3e09;
$custom-light: #5c734d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3e09",
  "rgb": {
    "r": 27,
    "g": 62,
    "b": 9
  },
  "hsl": {
    "h": 99.623,
    "s": 74.648,
    "l": 13.922
  },
  "oklch": {
    "l": 0.32532,
    "c": 0.08889,
    "h": 137.3
  },
  "luminance": 0.03698
}

Semantic roles & 50–950 ramp

primary

#1B3E09

secondary

#5F277C

accent

#37F1B2

background

#F5F7F4

surface

#E9EDE7

border

#C5C8C3

text

#040801

muted

#797B77

Preview Lab

Preview with #1B3E09

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

Preview Lab → · Contrast checker → · Palette generator →