#1F3F05#1F3F05

#1F3F05 is a dark, moderate yellow-green. Relative luminance 0.039; OKLCH L 33.0% C 0.091 H 134.9°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#1F3F05
RGB	rgb(31, 63, 5)
HSL	hsl(93, 85%, 13%)
HSV	hsv(93, 92%, 25%)
CMYK	cmyk(50.8%, 0%, 92.1%, 75.3%)
CIE-LAB	lab(23.19, -22.86, 29.07)
CIE-LCH	lch(23.19, 36.99, 128.18°)
OKLab	oklab(33.03% -0.0641 0.0644)
OKLCH	oklch(33.03% 0.091 134.9)
XYZ	xyz(2.3699, 3.8571, 0.7632)
Luminance	0.0386 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 2.79

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3F05 #25053F

analogous

#3C3F05 #1F3F05 #053F08

triadic

#1F3F05 #051F3F #3F051F

tetradic

#1F3F05 #053C3F #25053F #3F0805

square

#1F3F05 #053C3F #25053F #3F0805

split-complementary

#1F3F05 #08053F #3F053C

monochromatic

#0E1C02 #0E1C02 #1F3F05 #3B7809 #57B00E

Accessibility & contrast

On white

11.86

#1F3F05 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1F3F05 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3F05

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3F05	#FFFFFF	#000000	##FFFFFF
##1F3F05	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423900

Deuteranopia (green-blind)

#3E360B

Tritanopia (blue-blind)

#1E3C34

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f3f05;
/* rgb */ color: rgb(31, 63, 5);
/* oklch */ color: oklch(33.0% 0.091 134.9);

Tailwind

colors: {
  custom: {
    50: '#5f744b',
    500: '#1f3f05',
    950: '#000000',
  },
}

SCSS

$custom: #1f3f05;
$custom-light: #5f744b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3f05",
  "rgb": {
    "r": 31,
    "g": 63,
    "b": 5
  },
  "hsl": {
    "h": 93.103,
    "s": 85.294,
    "l": 13.333
  },
  "oklch": {
    "l": 0.33027,
    "c": 0.09085,
    "h": 134.9
  },
  "luminance": 0.03857
}

Semantic roles & 50–950 ramp

primary

#1F3F05

secondary

#552080

accent

#2CFC9F

background

#F5F7F4

surface

#E9EDE7

border

#C5C8C3

text

#050801

muted

#797B77

Preview Lab

Preview with #1F3F05

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

Preview Lab → · Contrast checker → · Palette generator →