#1B9F2B#1B9F2B

#1B9F2B is a mid, vivid green. Relative luminance 0.252; OKLCH L 61.3% C 0.188 H 144.1°. Best body text is #000000 at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#1B9F2B
RGB	rgb(27, 159, 43)
HSL	hsl(127, 71%, 36%)
HSV	hsv(127, 83%, 62%)
CMYK	cmyk(83%, 0%, 73%, 37.6%)
CIE-LAB	lab(57.27, -56.34, 48.37)
CIE-LCH	lch(57.27, 74.26, 139.35°)
OKLab	oklab(61.32% -0.1522 0.1101)
OKLCH	oklch(61.32% 0.188 144.1)
XYZ	xyz(13.2853, 25.2021, 6.4493)
Luminance	0.2520 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9F2B #9F1B8F

analogous

#4D9F1B #1B9F2B #1B9F6D

triadic

#1B9F2B #2B1B9F #9F2B1B

tetradic

#1B9F2B #1B4D9F #9F1B8F #9F6D1B

square

#1B9F2B #1B4D9F #9F1B8F #9F6D1B

split-complementary

#1B9F2B #6D1B9F #9F1B4D

monochromatic

#09360F #126B1D #1B9F2B #24D339 #53E264

Accessibility & contrast

On white

3.48

#1B9F2B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.04

#1B9F2B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9F2B

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9F2B	#FFFFFF	#000000	##000000
##1B9F2B	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)

#A28F17

Deuteranopia (green-blind)

#948637

Tritanopia (blue-blind)

#009A88

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #1b9f2b;
/* rgb */ color: rgb(27, 159, 43);
/* oklch */ color: oklch(61.3% 0.188 144.1);

Tailwind

colors: {
  custom: {
    50: '#72bd6b',
    500: '#1b9f2b',
    950: '#000000',
  },
}

SCSS

$custom: #1b9f2b;
$custom-light: #72bd6b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9f2b",
  "rgb": {
    "r": 27,
    "g": 159,
    "b": 43
  },
  "hsl": {
    "h": 127.273,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.6132,
    "c": 0.18786,
    "h": 144.1
  },
  "luminance": 0.25204
}

Semantic roles & 50–950 ramp

primary

#1B9F2B

secondary

#C551B7

accent

#3AD8EE

background

#F7FBF6

surface

#EEF7EC

border

#C9D0C7

text

#091207

muted

#7B817A

Preview Lab

Preview with #1B9F2B

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

Preview Lab → · Contrast checker → · Palette generator →