#1B9F39#1B9F39

#1B9F39 is a mid, vivid green. Relative luminance 0.253; OKLCH L 61.5% C 0.178 H 146.0°. Best body text is #000000 at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#1B9F39
RGB	rgb(27, 159, 57)
HSL	hsl(134, 71%, 36%)
HSV	hsv(134, 83%, 62%)
CMYK	cmyk(83%, 0%, 64.2%, 37.6%)
CIE-LAB	lab(57.39, -54.89, 42.62)
CIE-LCH	lch(57.39, 69.49, 142.17°)
OKLab	oklab(61.45% -0.1477 0.0995)
OKLCH	oklch(61.45% 0.178 146)
XYZ	xyz(13.5876, 25.3230, 8.0418)
Luminance	0.2532 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9F39 #9F1B81

analogous

#3F9F1B #1B9F39 #1B9F7B

triadic

#1B9F39 #391B9F #9F391B

tetradic

#1B9F39 #1B3F9F #9F1B81 #9F7B1B

square

#1B9F39 #1B3F9F #9F1B81 #9F7B1B

split-complementary

#1B9F39 #7B1B9F #9F1B3F

monochromatic

#093613 #126B26 #1B9F39 #24D34C #53E273

Accessibility & contrast

On white

3.46

#1B9F39 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.06

#1B9F39 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9F39

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9F39	#FFFFFF	#000000	##000000
##1B9F39	1.00	3.46	6.06	6.06
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.06	21.00	1.00	1.00
##000000	6.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1902D

Deuteranopia (green-blind)

#938642

Tritanopia (blue-blind)

#009B8A

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #1b9f39;
/* rgb */ color: rgb(27, 159, 57);
/* oklch */ color: oklch(61.5% 0.178 146.0);

Tailwind

colors: {
  custom: {
    50: '#71bd73',
    500: '#1b9f39',
    950: '#000000',
  },
}

SCSS

$custom: #1b9f39;
$custom-light: #71bd73;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9f39",
  "rgb": {
    "r": 27,
    "g": 159,
    "b": 57
  },
  "hsl": {
    "h": 133.636,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.61454,
    "c": 0.17813,
    "h": 146
  },
  "luminance": 0.25325
}

Semantic roles & 50–950 ramp

primary

#1B9F39

secondary

#C551AA

accent

#3AC5EE

background

#F7FBF7

surface

#EDF7ED

border

#C8D0C8

text

#091208

muted

#7B817B

Preview Lab

Preview with #1B9F39

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

Preview Lab → · Contrast checker → · Palette generator →