#1B9731#1B9731

#1B9731 is a mid, vivid green. Relative luminance 0.226; OKLCH L 59.1% C 0.175 H 145.2°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#1B9731
RGB	rgb(27, 151, 49)
HSL	hsl(131, 70%, 35%)
HSV	hsv(131, 82%, 59%)
CMYK	cmyk(82.1%, 0%, 67.5%, 40.8%)
CIE-LAB	lab(54.64, -53.17, 43.12)
CIE-LCH	lch(54.64, 68.46, 140.95°)
OKLab	oklab(59.15% -0.1433 0.0998)
OKLCH	oklch(59.15% 0.175 145.2)
XYZ	xyz(12.0721, 22.5865, 6.6285)
Luminance	0.2259 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9731 #971B81

analogous

#43971B #1B9731 #1B976F

triadic

#1B9731 #311B97 #97311B

tetradic

#1B9731 #1B4397 #971B81 #976F1B

square

#1B9731 #1B4397 #971B81 #976F1B

split-complementary

#1B9731 #6F1B97 #971B43

monochromatic

#082F0F #126320 #1B9731 #24CB42 #4DDF67

Accessibility & contrast

On white

3.81

#1B9731 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.52

#1B9731 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9731

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9731	#FFFFFF	#000000	##000000
##1B9731	1.00	3.81	5.52	5.52
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.52	21.00	1.00	1.00
##000000	5.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9A8824

Deuteranopia (green-blind)

#8C7F3A

Tritanopia (blue-blind)

#009382

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #1b9731;
/* rgb */ color: rgb(27, 151, 49);
/* oklch */ color: oklch(59.1% 0.175 145.2);

Tailwind

colors: {
  custom: {
    50: '#70b76e',
    500: '#1b9731',
    950: '#000000',
  },
}

SCSS

$custom: #1b9731;
$custom-light: #70b76e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9731",
  "rgb": {
    "r": 27,
    "g": 151,
    "b": 49
  },
  "hsl": {
    "h": 130.645,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.59149,
    "c": 0.17464,
    "h": 145.2
  },
  "luminance": 0.22588
}

Semantic roles & 50–950 ramp

primary

#1B9731

secondary

#C14CAD

accent

#3BCDEC

background

#F7FBF6

surface

#EDF6EC

border

#C8D0C7

text

#091107

muted

#7B807A

Preview Lab

Preview with #1B9731

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

Preview Lab → · Contrast checker → · Palette generator →