#1B8529#1B8529

#1B8529 is a mid, vivid green. Relative luminance 0.172; OKLCH L 54.0% C 0.159 H 144.6°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#1B8529
RGB	rgb(27, 133, 41)
HSL	hsl(128, 66%, 31%)
HSV	hsv(128, 80%, 52%)
CMYK	cmyk(79.7%, 0%, 69.2%, 47.8%)
CIE-LAB	lab(48.47, -47.99, 39.90)
CIE-LCH	lch(48.47, 62.41, 140.26°)
OKLab	oklab(54% -0.1296 0.092)
OKLCH	oklch(54% 0.159 144.6)
XYZ	xyz(9.2391, 17.1671, 4.9240)
Luminance	0.1717 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8529 #851B77

analogous

#42851B #1B8529 #1B855E

triadic

#1B8529 #291B85 #85291B

tetradic

#1B8529 #1B4285 #851B77 #855E1B

square

#1B8529 #1B4285 #851B77 #855E1B

split-complementary

#1B8529 #5E1B85 #851B42

monochromatic

#061F0A #115219 #1B8529 #25B839 #42D956

Accessibility & contrast

On white

4.74

#1B8529 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#1B8529 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B8529

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8529	#FFFFFF	#000000	##FFFFFF
##1B8529	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#87781D

Deuteranopia (green-blind)

#7C7032

Tritanopia (blue-blind)

#008172

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #1b8529;
/* rgb */ color: rgb(27, 133, 41);
/* oklch */ color: oklch(54.0% 0.159 144.6);

Tailwind

colors: {
  custom: {
    50: '#6baa67',
    500: '#1b8529',
    950: '#000000',
  },
}

SCSS

$custom: #1b8529;
$custom-light: #6baa67;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8529",
  "rgb": {
    "r": 27,
    "g": 133,
    "b": 41
  },
  "hsl": {
    "h": 127.925,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.53997,
    "c": 0.15897,
    "h": 144.6
  },
  "luminance": 0.17168
}

Semantic roles & 50–950 ramp

primary

#1B8529

secondary

#B844A9

accent

#3FD3E9

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081006

muted

#7B7F7A

Preview Lab

Preview with #1B8529

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

Preview Lab → · Contrast checker → · Palette generator →