#1F310C#1F310C

#1F310C is a dark, moderate yellow-green. Relative luminance 0.025; OKLCH L 28.8% C 0.064 H 131.4°. Best body text is #FFFFFF at 13.97:1 contrast (WCAG AA passes).

Color values

HEX	#1F310C
RGB	rgb(31, 49, 12)
HSL	hsl(89, 61%, 12%)
HSV	hsv(89, 76%, 19%)
CMYK	cmyk(36.7%, 0%, 75.5%, 80.8%)
CIE-LAB	lab(17.98, -14.96, 20.39)
CIE-LCH	lch(17.98, 25.29, 126.27°)
OKLab	oklab(28.79% -0.042 0.0477)
OKLCH	oklch(28.79% 0.064 131.4)
XYZ	xyz(1.7297, 2.5144, 0.7420)
Luminance	0.0251 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F310C #1E0C31

analogous

#31310C #1F310C #0D310C

triadic

#1F310C #0C1F31 #310C1F

tetradic

#1F310C #0C3131 #1E0C31 #310C0D

square

#1F310C #0C3131 #1E0C31 #310C0D

split-complementary

#1F310C #0C0D31 #310C31

monochromatic

#101906 #101906 #1F310C #3E6218 #5D9324

Accessibility & contrast

On white

13.97

#1F310C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#1F310C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F310C

13.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F310C	#FFFFFF	#000000	##FFFFFF
##1F310C	1.00	13.97	1.50	13.97
#FFFFFF	13.97	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#332D08

Deuteranopia (green-blind)

#312B0F

Tritanopia (blue-blind)

#202F29

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1f310c;
/* rgb */ color: rgb(31, 49, 12);
/* oklch */ color: oklch(28.8% 0.064 131.4);

Tailwind

colors: {
  custom: {
    50: '#5c694d',
    500: '#1f310c',
    950: '#000000',
  },
}

SCSS

$custom: #1f310c;
$custom-light: #5c694d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f310c",
  "rgb": {
    "r": 31,
    "g": 49,
    "b": 12
  },
  "hsl": {
    "h": 89.189,
    "s": 60.656,
    "l": 11.961
  },
  "oklch": {
    "l": 0.28788,
    "c": 0.06354,
    "h": 131.4
  },
  "luminance": 0.02514
}

Semantic roles & 50–950 ramp

primary

#1F310C

secondary

#4C2C6D

accent

#44E492

background

#F5F6F4

surface

#E9EBE7

border

#C5C6C3

text

#040601

muted

#797A77

Preview Lab

Preview with #1F310C

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

Preview Lab → · Contrast checker → · Palette generator →