#1F3F09#1F3F09

#1F3F09 is a dark, moderate yellow-green. Relative luminance 0.039; OKLCH L 33.1% C 0.088 H 135.6°. Best body text is #FFFFFF at 11.84:1 contrast (WCAG AA passes).

Color values

HEX	#1F3F09
RGB	rgb(31, 63, 9)
HSL	hsl(96, 75%, 14%)
HSV	hsv(96, 86%, 25%)
CMYK	cmyk(50.8%, 0%, 85.7%, 75.3%)
CIE-LAB	lab(23.22, -22.54, 27.47)
CIE-LCH	lch(23.22, 35.54, 129.37°)
OKLab	oklab(33.06% -0.0629 0.0615)
OKLCH	oklch(33.06% 0.088 135.6)
XYZ	xyz(2.3918, 3.8659, 0.8786)
Luminance	0.0387 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 2.83

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3F09 #29093F

analogous

#3A3F09 #1F3F09 #093F0E

triadic

#1F3F09 #091F3F #3F091F

tetradic

#1F3F09 #093A3F #29093F #3F0E09

square

#1F3F09 #093A3F #29093F #3F0E09

split-complementary

#1F3F09 #0E093F #3F093A

monochromatic

#0D1B04 #0D1B04 #1F3F09 #397511 #54AA18

Accessibility & contrast

On white

11.84

#1F3F09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1F3F09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3F09

11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3F09	#FFFFFF	#000000	##FFFFFF
##1F3F09	1.00	11.84	1.77	11.84
#FFFFFF	11.84	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423901

Deuteranopia (green-blind)

#3D360F

Tritanopia (blue-blind)

#1E3C35

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f3f09;
/* rgb */ color: rgb(31, 63, 9);
/* oklch */ color: oklch(33.1% 0.088 135.6);

Tailwind

colors: {
  custom: {
    50: '#5e744d',
    500: '#1f3f09',
    950: '#000000',
  },
}

SCSS

$custom: #1f3f09;
$custom-light: #5e744d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3f09",
  "rgb": {
    "r": 31,
    "g": 63,
    "b": 9
  },
  "hsl": {
    "h": 95.556,
    "s": 75,
    "l": 14.118
  },
  "oklch": {
    "l": 0.33061,
    "c": 0.08797,
    "h": 135.6
  },
  "luminance": 0.03866
}

Semantic roles & 50–950 ramp

primary

#1F3F09

secondary

#5A277D

accent

#36F2A5

background

#F5F7F4

surface

#E9EDE7

border

#C5C8C3

text

#050801

muted

#797B77

Preview Lab

Preview with #1F3F09

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

Preview Lab → · Contrast checker → · Palette generator →