#1B511E#1B511E

#1B511E is a dark, moderate green. Relative luminance 0.062; OKLCH L 38.6% C 0.099 H 144.3°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#1B511E
RGB	rgb(27, 81, 30)
HSL	hsl(123, 50%, 21%)
HSV	hsv(123, 67%, 32%)
CMYK	cmyk(66.7%, 0%, 63%, 68.2%)
CIE-LAB	lab(29.94, -29.66, 24.44)
CIE-LCH	lch(29.94, 38.43, 140.51°)
OKLab	oklab(38.61% -0.0804 0.0579)
OKLCH	oklch(38.61% 0.099 144.3)
XYZ	xyz(3.6286, 6.2113, 2.2357)
Luminance	0.0621 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B511E #511B4E

analogous

#33511B #1B511E #1B5139

triadic

#1B511E #1E1B51 #511E1B

tetradic

#1B511E #1B3351 #511B4E #51391B

square

#1B511E #1B3351 #511B4E #51391B

split-complementary

#1B511E #391B51 #511B33

monochromatic

#081708 #0C230D #1B511E #2A7F2F #3AAD40

Accessibility & contrast

On white

9.36

#1B511E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1B511E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B511E

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B511E	#FFFFFF	#000000	##FFFFFF
##1B511E	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534919

Deuteranopia (green-blind)

#4C4522

Tritanopia (blue-blind)

#104F46

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1b511e;
/* rgb */ color: rgb(27, 81, 30);
/* oklch */ color: oklch(38.6% 0.099 144.3);

Tailwind

colors: {
  custom: {
    50: '#5f825b',
    500: '#1b511e',
    950: '#000000',
  },
}

SCSS

$custom: #1b511e;
$custom-light: #5f825b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b511e",
  "rgb": {
    "r": 27,
    "g": 81,
    "b": 30
  },
  "hsl": {
    "h": 123.333,
    "s": 50,
    "l": 21.176
  },
  "oklch": {
    "l": 0.3861,
    "c": 0.09907,
    "h": 144.3
  },
  "luminance": 0.06212
}

Semantic roles & 50–950 ramp

primary

#1B511E

secondary

#874183

accent

#4ED2DA

background

#F5F8F5

surface

#EAEFE9

border

#C6CAC5

text

#050A04

muted

#797C79

Preview Lab

Preview with #1B511E

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

Preview Lab → · Contrast checker → · Palette generator →