#1B9F3B#1B9F3B

#1B9F3B is a mid, vivid green. Relative luminance 0.253; OKLCH L 61.5% C 0.177 H 146.4°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#1B9F3B
RGB	rgb(27, 159, 59)
HSL	hsl(135, 71%, 36%)
HSV	hsv(135, 83%, 62%)
CMYK	cmyk(83%, 0%, 62.9%, 37.6%)
CIE-LAB	lab(57.41, -54.65, 41.73)
CIE-LCH	lch(57.41, 68.76, 142.63°)
OKLab	oklab(61.48% -0.147 0.0978)
OKLCH	oklch(61.48% 0.177 146.4)
XYZ	xyz(13.6385, 25.3434, 8.3098)
Luminance	0.2535 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9F3B #9F1B7F

analogous

#3D9F1B #1B9F3B #1B9F7D

triadic

#1B9F3B #3B1B9F #9F3B1B

tetradic

#1B9F3B #1B3D9F #9F1B7F #9F7D1B

square

#1B9F3B #1B3D9F #9F1B7F #9F7D1B

split-complementary

#1B9F3B #7D1B9F #9F1B3D

monochromatic

#093614 #126B28 #1B9F3B #24D34E #53E275

Accessibility & contrast

On white

3.46

#1B9F3B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.07

#1B9F3B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9F3B

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9F3B	#FFFFFF	#000000	##000000
##1B9F3B	1.00	3.46	6.07	6.07
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.07	21.00	1.00	1.00
##000000	6.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A19030

Deuteranopia (green-blind)

#938644

Tritanopia (blue-blind)

#009B8A

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #1b9f3b;
/* rgb */ color: rgb(27, 159, 59);
/* oklch */ color: oklch(61.5% 0.177 146.4);

Tailwind

colors: {
  custom: {
    50: '#71bd75',
    500: '#1b9f3b',
    950: '#000000',
  },
}

SCSS

$custom: #1b9f3b;
$custom-light: #71bd75;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9f3b",
  "rgb": {
    "r": 27,
    "g": 159,
    "b": 59
  },
  "hsl": {
    "h": 134.545,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.61477,
    "c": 0.17659,
    "h": 146.4
  },
  "luminance": 0.25345
}

Semantic roles & 50–950 ramp

primary

#1B9F3B

secondary

#C551A9

accent

#3AC2EE

background

#F7FBF7

surface

#EDF7ED

border

#C8D0C8

text

#091208

muted

#7B817B

Preview Lab

Preview with #1B9F3B

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

Preview Lab → · Contrast checker → · Palette generator →