#1B9D40#1B9D40

#1B9D40 is a mid, vivid green. Relative luminance 0.247; OKLCH L 61.0% C 0.170 H 147.4°. Best body text is #000000 at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#1B9D40
RGB	rgb(27, 157, 64)
HSL	hsl(137, 71%, 36%)
HSV	hsv(137, 83%, 62%)
CMYK	cmyk(82.8%, 0%, 59.2%, 38.4%)
CIE-LAB	lab(56.80, -53.33, 38.68)
CIE-LCH	lch(56.80, 65.88, 144.05°)
OKLab	oklab(60.99% -0.1433 0.0917)
OKLCH	oklch(60.99% 0.17 147.4)
XYZ	xyz(13.4333, 24.7155, 8.9121)
Luminance	0.2472 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9D40 #9D1B78

analogous

#379D1B #1B9D40 #1B9D81

triadic

#1B9D40 #401B9D #9D401B

tetradic

#1B9D40 #1B379D #9D1B78 #9D811B

square

#1B9D40 #1B379D #9D1B78 #9D811B

split-complementary

#1B9D40 #811B9D #9D1B37

monochromatic

#093515 #12692B #1B9D40 #24D155 #51E17A

Accessibility & contrast

On white

3.53

#1B9D40 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.94

#1B9D40 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9D40

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9D40	#FFFFFF	#000000	##000000
##1B9D40	1.00	3.53	5.94	5.94
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.94	21.00	1.00	1.00
##000000	5.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9F8E37

Deuteranopia (green-blind)

#918448

Tritanopia (blue-blind)

#009989

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #1b9d40;
/* rgb */ color: rgb(27, 157, 64);
/* oklch */ color: oklch(61.0% 0.170 147.4);

Tailwind

colors: {
  custom: {
    50: '#70bb78',
    500: '#1b9d40',
    950: '#000000',
  },
}

SCSS

$custom: #1b9d40;
$custom-light: #70bb78;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9d40",
  "rgb": {
    "r": 27,
    "g": 157,
    "b": 64
  },
  "hsl": {
    "h": 137.077,
    "s": 70.652,
    "l": 36.078
  },
  "oklch": {
    "l": 0.60986,
    "c": 0.17011,
    "h": 147.4
  },
  "luminance": 0.24717
}

Semantic roles & 50–950 ramp

primary

#1B9D40

secondary

#C450A3

accent

#3ABAED

background

#F7FBF7

surface

#EDF6ED

border

#C8D0C8

text

#091209

muted

#7B817B

Preview Lab

Preview with #1B9D40

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

Preview Lab → · Contrast checker → · Palette generator →