#1F511B#1F511B

#1F511B is a dark, moderate green. Relative luminance 0.063; OKLCH L 38.7% C 0.100 H 142.1°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#1F511B
RGB	rgb(31, 81, 27)
HSL	hsl(116, 50%, 21%)
HSV	hsv(116, 67%, 32%)
CMYK	cmyk(61.7%, 0%, 66.7%, 68.2%)
CIE-LAB	lab(30.05, -28.94, 26.20)
CIE-LCH	lch(30.05, 39.04, 137.85°)
OKLab	oklab(38.73% -0.0789 0.0613)
OKLCH	oklch(38.73% 0.1 142.1)
XYZ	xyz(3.7051, 6.2550, 2.0488)
Luminance	0.0625 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F511B #4D1B51

analogous

#3A511B #1F511B #1B5132

triadic

#1F511B #1B1F51 #511B1F

tetradic

#1F511B #1B3A51 #4D1B51 #51321B

square

#1F511B #1B3A51 #4D1B51 #51321B

split-complementary

#1F511B #321B51 #511B3A

monochromatic

#091708 #0D230C #1F511B #317F2A #42AD3A

Accessibility & contrast

On white

9.33

#1F511B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1F511B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F511B

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F511B	#FFFFFF	#000000	##FFFFFF
##1F511B	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534915

Deuteranopia (green-blind)

#4D451F

Tritanopia (blue-blind)

#184E45

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1f511b;
/* rgb */ color: rgb(31, 81, 27);
/* oklch */ color: oklch(38.7% 0.100 142.1);

Tailwind

colors: {
  custom: {
    50: '#61825a',
    500: '#1f511b',
    950: '#000000',
  },
}

SCSS

$custom: #1f511b;
$custom-light: #61825a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f511b",
  "rgb": {
    "r": 31,
    "g": 81,
    "b": 27
  },
  "hsl": {
    "h": 115.556,
    "s": 50,
    "l": 21.176
  },
  "oklch": {
    "l": 0.38727,
    "c": 0.09991,
    "h": 142.1
  },
  "luminance": 0.06255
}

Semantic roles & 50–950 ramp

primary

#1F511B

secondary

#824187

accent

#4EDACF

background

#F5F8F5

surface

#EAEFE9

border

#C6CAC5

text

#050A04

muted

#797C79

Preview Lab

Preview with #1F511B

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

Preview Lab → · Contrast checker → · Palette generator →