#1B9B31#1B9B31

#1B9B31 is a mid, vivid green. Relative luminance 0.239; OKLCH L 60.3% C 0.179 H 145.0°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#1B9B31
RGB	rgb(27, 155, 49)
HSL	hsl(130, 70%, 36%)
HSV	hsv(130, 83%, 61%)
CMYK	cmyk(82.6%, 0%, 68.4%, 39.2%)
CIE-LAB	lab(55.98, -54.48, 44.58)
CIE-LCH	lch(55.98, 70.39, 140.71°)
OKLab	oklab(60.26% -0.1469 0.1028)
OKLCH	oklch(60.26% 0.179 145)
XYZ	xyz(12.7268, 23.8959, 6.8468)
Luminance	0.2390 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9B31 #9B1B85

analogous

#459B1B #1B9B31 #1B9B71

triadic

#1B9B31 #311B9B #9B311B

tetradic

#1B9B31 #1B459B #9B1B85 #9B711B

square

#1B9B31 #1B459B #9B1B85 #9B711B

split-complementary

#1B9B31 #711B9B #9B1B45

monochromatic

#093310 #126721 #1B9B31 #24CF41 #50E069

Accessibility & contrast

On white

3.63

#1B9B31 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#1B9B31 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9B31

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9B31	#FFFFFF	#000000	##000000
##1B9B31	1.00	3.63	5.78	5.78
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.78	21.00	1.00	1.00
##000000	5.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9E8C23

Deuteranopia (green-blind)

#90823B

Tritanopia (blue-blind)

#009785

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #1b9b31;
/* rgb */ color: rgb(27, 155, 49);
/* oklch */ color: oklch(60.3% 0.179 145.0);

Tailwind

colors: {
  custom: {
    50: '#71ba6e',
    500: '#1b9b31',
    950: '#000000',
  },
}

SCSS

$custom: #1b9b31;
$custom-light: #71ba6e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9b31",
  "rgb": {
    "r": 27,
    "g": 155,
    "b": 49
  },
  "hsl": {
    "h": 130.313,
    "s": 70.33,
    "l": 35.686
  },
  "oklch": {
    "l": 0.60263,
    "c": 0.17931,
    "h": 145
  },
  "luminance": 0.23897
}

Semantic roles & 50–950 ramp

primary

#1B9B31

secondary

#C34FAF

accent

#3BCEED

background

#F7FBF6

surface

#EDF6EC

border

#C8D0C7

text

#091207

muted

#7B817A

Preview Lab

Preview with #1B9B31

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

Preview Lab → · Contrast checker → · Palette generator →