#1B8731#1B8731

#1B8731 is a mid, vivid green. Relative luminance 0.178; OKLCH L 54.7% C 0.155 H 145.9°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#1B8731
RGB	rgb(27, 135, 49)
HSL	hsl(132, 67%, 32%)
HSV	hsv(132, 80%, 53%)
CMYK	cmyk(80%, 0%, 63.7%, 47.1%)
CIE-LAB	lab(49.23, -47.75, 37.09)
CIE-LCH	lch(49.23, 60.47, 142.16°)
OKLab	oklab(54.65% -0.1286 0.0869)
OKLCH	oklch(54.65% 0.155 145.9)
XYZ	xyz(9.6696, 17.7816, 5.8277)
Luminance	0.1778 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8731 #871B71

analogous

#3B871B #1B8731 #1B8767

triadic

#1B8731 #311B87 #87311B

tetradic

#1B8731 #1B3B87 #871B71 #87671B

square

#1B8731 #1B3B87 #871B71 #87671B

split-complementary

#1B8731 #671B87 #871B3B

monochromatic

#07210C #11541E #1B8731 #25BA44 #43D962

Accessibility & contrast

On white

4.61

#1B8731 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#1B8731 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #1B8731

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8731	#FFFFFF	#000000	##FFFFFF
##1B8731	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#897A27

Deuteranopia (green-blind)

#7D7238

Tritanopia (blue-blind)

#008475

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #1b8731;
/* rgb */ color: rgb(27, 135, 49);
/* oklch */ color: oklch(54.7% 0.155 145.9);

Tailwind

colors: {
  custom: {
    50: '#6bab6c',
    500: '#1b8731',
    950: '#000000',
  },
}

SCSS

$custom: #1b8731;
$custom-light: #6bab6c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8731",
  "rgb": {
    "r": 27,
    "g": 135,
    "b": 49
  },
  "hsl": {
    "h": 132.222,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.54653,
    "c": 0.15526,
    "h": 145.9
  },
  "luminance": 0.17783
}

Semantic roles & 50–950 ramp

primary

#1B8731

secondary

#BA44A2

accent

#3EC7EA

background

#F7FAF6

surface

#EDF4EC

border

#C8CEC7

text

#081007

muted

#7B7F7A

Preview Lab

Preview with #1B8731

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

Preview Lab → · Contrast checker → · Palette generator →