#1B310E#1B310E

#1B310E is a dark, moderate yellow-green. Relative luminance 0.025; OKLCH L 28.5% C 0.064 H 135.5°. Best body text is #FFFFFF at 14.07:1 contrast (WCAG AA passes).

Color values

HEX	#1B310E
RGB	rgb(27, 49, 14)
HSL	hsl(98, 56%, 12%)
HSV	hsv(98, 71%, 19%)
CMYK	cmyk(44.9%, 0%, 71.4%, 80.8%)
CIE-LAB	lab(17.74, -16.52, 19.08)
CIE-LCH	lch(17.74, 25.24, 130.88°)
OKLab	oklab(28.53% -0.0458 0.0449)
OKLCH	oklch(28.53% 0.064 135.5)
XYZ	xyz(1.6295, 2.4613, 0.8046)
Luminance	0.0246 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B310E #240E31

analogous

#2D310E #1B310E #0E3112

triadic

#1B310E #0E1B31 #310E1B

tetradic

#1B310E #0E2D31 #240E31 #31120E

square

#1B310E #0E2D31 #240E31 #31120E

split-complementary

#1B310E #120E31 #310E2D

monochromatic

#0D1807 #0D1807 #1B310E #35611C #4F9029

Accessibility & contrast

On white

14.07

#1B310E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#1B310E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B310E

14.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B310E	#FFFFFF	#000000	##FFFFFF
##1B310E	1.00	14.07	1.49	14.07
#FFFFFF	14.07	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#332D0A

Deuteranopia (green-blind)

#302B11

Tritanopia (blue-blind)

#1A2F29

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1b310e;
/* rgb */ color: rgb(27, 49, 14);
/* oklch */ color: oklch(28.5% 0.064 135.5);

Tailwind

colors: {
  custom: {
    50: '#59694e',
    500: '#1b310e',
    950: '#000000',
  },
}

SCSS

$custom: #1b310e;
$custom-light: #59694e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b310e",
  "rgb": {
    "r": 27,
    "g": 49,
    "b": 14
  },
  "hsl": {
    "h": 97.714,
    "s": 55.556,
    "l": 12.353
  },
  "oklch": {
    "l": 0.28528,
    "c": 0.06412,
    "h": 135.5
  },
  "luminance": 0.02461
}

Semantic roles & 50–950 ramp

primary

#1B310E

secondary

#552F6C

accent

#49DFA7

background

#F5F6F4

surface

#E9EBE7

border

#C5C6C3

text

#030601

muted

#787A77

Preview Lab

Preview with #1B310E

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

Preview Lab → · Contrast checker → · Palette generator →