#1F440B#1F440B

#1F440B is a dark, moderate yellow-green. Relative luminance 0.044; OKLCH L 34.6% C 0.094 H 137.0°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#1F440B
RGB	rgb(31, 68, 11)
HSL	hsl(99, 72%, 15%)
HSV	hsv(99, 84%, 27%)
CMYK	cmyk(54.4%, 0%, 83.8%, 73.3%)
CIE-LAB	lab(25.11, -24.76, 28.52)
CIE-LCH	lch(25.11, 37.77, 130.95°)
OKLab	oklab(34.61% -0.0687 0.064)
OKLCH	oklch(34.61% 0.094 137)
XYZ	xyz(2.6925, 4.4495, 1.0335)
Luminance	0.0445 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 1.63

Hunter Green (survey)

#0B4008

ΔE00 2.88

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F440B #300B44

analogous

#3B440B #1F440B #0B4413

triadic

#1F440B #0B1F44 #440B1F

tetradic

#1F440B #0B3B44 #300B44 #44130B

square

#1F440B #0B3B44 #300B44 #44130B

split-complementary

#1F440B #130B44 #440B3B

monochromatic

#0C1A04 #0C1A04 #1F440B #377914 #4FAD1C

Accessibility & contrast

On white

11.11

#1F440B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1F440B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F440B

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F440B	#FFFFFF	#000000	##FFFFFF
##1F440B	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473D02

Deuteranopia (green-blind)

#423A11

Tritanopia (blue-blind)

#1D4139

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1f440b;
/* rgb */ color: rgb(31, 68, 11);
/* oklch */ color: oklch(34.6% 0.094 137.0);

Tailwind

colors: {
  custom: {
    50: '#5f784f',
    500: '#1f440b',
    950: '#000000',
  },
}

SCSS

$custom: #1f440b;
$custom-light: #5f784f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f440b",
  "rgb": {
    "r": 31,
    "g": 68,
    "b": 11
  },
  "hsl": {
    "h": 98.947,
    "s": 72.152,
    "l": 15.49
  },
  "oklch": {
    "l": 0.34611,
    "c": 0.09388,
    "h": 137
  },
  "luminance": 0.0445
}

Semantic roles & 50–950 ramp

primary

#1F440B

secondary

#622A81

accent

#39EFAF

background

#F5F7F4

surface

#EAEDE7

border

#C6C8C3

text

#050902

muted

#797B78

Preview Lab

Preview with #1F440B

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

Preview Lab → · Contrast checker → · Palette generator →