#1B9F28#1B9F28

#1B9F28 is a mid, vivid green. Relative luminance 0.252; OKLCH L 61.3% C 0.190 H 143.8°. Best body text is #000000 at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#1B9F28
RGB	rgb(27, 159, 40)
HSL	hsl(126, 71%, 36%)
HSV	hsv(126, 83%, 62%)
CMYK	cmyk(83%, 0%, 74.8%, 37.6%)
CIE-LAB	lab(57.25, -56.60, 49.48)
CIE-LCH	lch(57.25, 75.17, 138.84°)
OKLab	oklab(61.3% -0.1531 0.112)
OKLCH	oklch(61.3% 0.19 143.8)
XYZ	xyz(13.2322, 25.1809, 6.1701)
Luminance	0.2518 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9F28 #9F1B92

analogous

#509F1B #1B9F28 #1B9F6A

triadic

#1B9F28 #281B9F #9F281B

tetradic

#1B9F28 #1B509F #9F1B92 #9F6A1B

square

#1B9F28 #1B509F #9F1B92 #9F6A1B

split-complementary

#1B9F28 #6A1B9F #9F1B50

monochromatic

#09360E #126B1B #1B9F28 #24D335 #53E261

Accessibility & contrast

On white

3.48

#1B9F28 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.04

#1B9F28 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9F28

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9F28	#FFFFFF	#000000	##000000
##1B9F28	1.00	3.48	6.04	6.04
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.04	21.00	1.00	1.00
##000000	6.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A28F11

Deuteranopia (green-blind)

#948635

Tritanopia (blue-blind)

#009A88

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #1b9f28;
/* rgb */ color: rgb(27, 159, 40);
/* oklch */ color: oklch(61.3% 0.190 143.8);

Tailwind

colors: {
  custom: {
    50: '#72bd6a',
    500: '#1b9f28',
    950: '#000000',
  },
}

SCSS

$custom: #1b9f28;
$custom-light: #72bd6a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9f28",
  "rgb": {
    "r": 27,
    "g": 159,
    "b": 40
  },
  "hsl": {
    "h": 125.909,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.61296,
    "c": 0.18966,
    "h": 143.8
  },
  "luminance": 0.25182
}

Semantic roles & 50–950 ramp

primary

#1B9F28

secondary

#C551B9

accent

#3ADCEE

background

#F7FBF6

surface

#EEF7EB

border

#C9D0C6

text

#091207

muted

#7B817A

Preview Lab

Preview with #1B9F28

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

Preview Lab → · Contrast checker → · Palette generator →