#1B9F40#1B9F40

#1B9F40 is a mid, vivid green. Relative luminance 0.254; OKLCH L 61.5% C 0.173 H 147.3°. Best body text is #000000 at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#1B9F40
RGB	rgb(27, 159, 64)
HSL	hsl(137, 71%, 36%)
HSV	hsv(137, 83%, 62%)
CMYK	cmyk(83%, 0%, 59.7%, 37.6%)
CIE-LAB	lab(57.46, -54.01, 39.45)
CIE-LCH	lch(57.46, 66.88, 143.85°)
OKLab	oklab(61.54% -0.1451 0.0934)
OKLCH	oklch(61.54% 0.173 147.3)
XYZ	xyz(13.7745, 25.3977, 9.0258)
Luminance	0.2540 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9F40 #9F1B7A

analogous

#389F1B #1B9F40 #1B9F82

triadic

#1B9F40 #401B9F #9F401B

tetradic

#1B9F40 #1B389F #9F1B7A #9F821B

square

#1B9F40 #1B389F #9F1B7A #9F821B

split-complementary

#1B9F40 #821B9F #9F1B38

monochromatic

#093616 #126B2B #1B9F40 #24D355 #53E27B

Accessibility & contrast

On white

3.45

#1B9F40 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.08

#1B9F40 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9F40

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9F40	#FFFFFF	#000000	##000000
##1B9F40	1.00	3.45	6.08	6.08
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.08	21.00	1.00	1.00
##000000	6.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A19036

Deuteranopia (green-blind)

#938648

Tritanopia (blue-blind)

#009B8A

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #1b9f40;
/* rgb */ color: rgb(27, 159, 64);
/* oklch */ color: oklch(61.5% 0.173 147.3);

Tailwind

colors: {
  custom: {
    50: '#71bd78',
    500: '#1b9f40',
    950: '#000000',
  },
}

SCSS

$custom: #1b9f40;
$custom-light: #71bd78;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9f40",
  "rgb": {
    "r": 27,
    "g": 159,
    "b": 64
  },
  "hsl": {
    "h": 136.818,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.61538,
    "c": 0.17256,
    "h": 147.3
  },
  "luminance": 0.25399
}

Semantic roles & 50–950 ramp

primary

#1B9F40

secondary

#C551A4

accent

#3ABBEE

background

#F7FBF7

surface

#EDF7ED

border

#C8D0C8

text

#091209

muted

#7B817B

Preview Lab

Preview with #1B9F40

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

Preview Lab → · Contrast checker → · Palette generator →