#1B520B#1B520B

#1B520B is a dark, moderate green. Relative luminance 0.063; OKLCH L 38.7% C 0.115 H 139.9°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#1B520B
RGB	rgb(27, 82, 11)
HSL	hsl(106, 76%, 18%)
HSV	hsv(106, 87%, 32%)
CMYK	cmyk(67.1%, 0%, 86.6%, 67.8%)
CIE-LAB	lab(30.14, -32.05, 33.31)
CIE-LCH	lch(30.14, 46.23, 133.89°)
OKLab	oklab(38.72% -0.088 0.074)
OKLCH	oklch(38.72% 0.115 139.9)
XYZ	xyz(3.5295, 6.2914, 1.3449)
Luminance	0.0629 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B520B #420B52

analogous

#3E520B #1B520B #0B521E

triadic

#1B520B #0B1B52 #520B1B

tetradic

#1B520B #0B3E52 #420B52 #521E0B

square

#1B520B #0B3E52 #420B52 #521E0B

split-complementary

#1B520B #1E0B52 #520B3E

monochromatic

#091B04 #091C04 #1B520B #2D8812 #3FBE19

Accessibility & contrast

On white

9.30

#1B520B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1B520B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B520B

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B520B	#FFFFFF	#000000	##FFFFFF
##1B520B	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554A00

Deuteranopia (green-blind)

#4E4513

Tritanopia (blue-blind)

#134F45

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b520b;
/* rgb */ color: rgb(27, 82, 11);
/* oklch */ color: oklch(38.7% 0.115 139.9);

Tailwind

colors: {
  custom: {
    50: '#608351',
    500: '#1b520b',
    950: '#000000',
  },
}

SCSS

$custom: #1b520b;
$custom-light: #608351;
$custom-dark: #000000;

JSON

{
  "hex": "#1b520b",
  "rgb": {
    "r": 27,
    "g": 82,
    "b": 11
  },
  "hsl": {
    "h": 106.479,
    "s": 76.344,
    "l": 18.235
  },
  "oklch": {
    "l": 0.38718,
    "c": 0.11503,
    "h": 139.9
  },
  "luminance": 0.06292
}

Semantic roles & 50–950 ramp

primary

#1B520B

secondary

#782B8E

accent

#35F3C8

background

#F5F8F4

surface

#EAEFE7

border

#C6CAC3

text

#050B02

muted

#797C78

Preview Lab

Preview with #1B520B

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

Preview Lab → · Contrast checker → · Palette generator →