#1F3A05#1F3A05

#1F3A05 is a dark, moderate yellow-green. Relative luminance 0.033; OKLCH L 31.5% C 0.084 H 133.4°. Best body text is #FFFFFF at 12.61:1 contrast (WCAG AA passes).

Color values

HEX	#1F3A05
RGB	rgb(31, 58, 5)
HSL	hsl(91, 84%, 12%)
HSV	hsv(91, 91%, 23%)
CMYK	cmyk(46.6%, 0%, 91.4%, 77.3%)
CIE-LAB	lab(21.31, -20.41, 27.09)
CIE-LCH	lch(21.31, 33.92, 126.99°)
OKLab	oklab(31.49% -0.0575 0.0608)
OKLCH	oklch(31.49% 0.084 133.4)
XYZ	xyz(2.1055, 3.3283, 0.6750)
Luminance	0.0333 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 4.40

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3A05 #20053A

analogous

#3A3A05 #1F3A05 #053A05

triadic

#1F3A05 #051F3A #3A051F

tetradic

#1F3A05 #053A3A #20053A #3A0505

square

#1F3A05 #053A3A #20053A #3A0505

split-complementary

#1F3A05 #05053A #3A053A

monochromatic

#0F1C02 #0F1C02 #1F3A05 #3D720A #5BAB0F

Accessibility & contrast

On white

12.61

#1F3A05 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1F3A05 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3A05

12.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3A05	#FFFFFF	#000000	##FFFFFF
##1F3A05	1.00	12.61	1.67	12.61
#FFFFFF	12.61	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3500

Deuteranopia (green-blind)

#39320A

Tritanopia (blue-blind)

#1F3730

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f3a05;
/* rgb */ color: rgb(31, 58, 5);
/* oklch */ color: oklch(31.5% 0.084 133.4);

Tailwind

colors: {
  custom: {
    50: '#5e704a',
    500: '#1f3a05',
    950: '#000000',
  },
}

SCSS

$custom: #1f3a05;
$custom-light: #5e704a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3a05",
  "rgb": {
    "r": 31,
    "g": 58,
    "b": 5
  },
  "hsl": {
    "h": 90.566,
    "s": 84.127,
    "l": 12.353
  },
  "oklch": {
    "l": 0.31485,
    "c": 0.08369,
    "h": 133.4
  },
  "luminance": 0.03328
}

Semantic roles & 50–950 ramp

primary

#1F3A05

secondary

#4E207B

accent

#2DFA96

background

#F5F6F4

surface

#E9ECE7

border

#C5C7C3

text

#040701

muted

#797A77

Preview Lab

Preview with #1F3A05

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

Preview Lab → · Contrast checker → · Palette generator →