#1F340B#1F340B

#1F340B is a dark, moderate yellow-green. Relative luminance 0.028; OKLCH L 29.7% C 0.069 H 132.5°. Best body text is #FFFFFF at 13.51:1 contrast (WCAG AA passes).

Color values

HEX	#1F340B
RGB	rgb(31, 52, 11)
HSL	hsl(91, 65%, 12%)
HSV	hsv(91, 79%, 20%)
CMYK	cmyk(40.4%, 0%, 78.8%, 79.6%)
CIE-LAB	lab(19.10, -16.73, 22.16)
CIE-LCH	lch(19.10, 27.76, 127.06°)
OKLab	oklab(29.7% -0.0469 0.0512)
OKLCH	oklch(29.7% 0.069 132.5)
XYZ	xyz(1.8534, 2.7714, 0.7538)
Luminance	0.0277 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F340B #200B34

analogous

#33340B #1F340B #0B340C

triadic

#1F340B #0B1F34 #340B1F

tetradic

#1F340B #0B3334 #200B34 #340C0B

square

#1F340B #0B3334 #200B34 #340C0B

split-complementary

#1F340B #0C0B34 #340B33

monochromatic

#0F1905 #0F1905 #1F340B #3D6716 #5B9920

Accessibility & contrast

On white

13.51

#1F340B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1F340B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F340B

13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F340B	#FFFFFF	#000000	##FFFFFF
##1F340B	1.00	13.51	1.55	13.51
#FFFFFF	13.51	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#372F06

Deuteranopia (green-blind)

#342E0E

Tritanopia (blue-blind)

#1F322C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f340b;
/* rgb */ color: rgb(31, 52, 11);
/* oklch */ color: oklch(29.7% 0.069 132.5);

Tailwind

colors: {
  custom: {
    50: '#5d6b4c',
    500: '#1f340b',
    950: '#000000',
  },
}

SCSS

$custom: #1f340b;
$custom-light: #5d6b4c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f340b",
  "rgb": {
    "r": 31,
    "g": 52,
    "b": 11
  },
  "hsl": {
    "h": 90.732,
    "s": 65.079,
    "l": 12.353
  },
  "oklch": {
    "l": 0.29696,
    "c": 0.06943,
    "h": 132.5
  },
  "luminance": 0.02771
}

Semantic roles & 50–950 ramp

primary

#1F340B

secondary

#4E2A71

accent

#40E896

background

#F5F6F4

surface

#E9EBE7

border

#C5C6C3

text

#040601

muted

#797A77

Preview Lab

Preview with #1F340B

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

Preview Lab → · Contrast checker → · Palette generator →