#1B9F4A#1B9F4A

#1B9F4A is a mid, vivid green. Relative luminance 0.255; OKLCH L 61.7% C 0.164 H 149.4°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#1B9F4A
RGB	rgb(27, 159, 74)
HSL	hsl(141, 71%, 36%)
HSV	hsv(141, 83%, 62%)
CMYK	cmyk(83%, 0%, 53.5%, 37.6%)
CIE-LAB	lab(57.58, -52.57, 34.68)
CIE-LCH	lch(57.58, 62.98, 146.58°)
OKLab	oklab(61.68% -0.1411 0.0836)
OKLCH	oklch(61.68% 0.164 149.4)
XYZ	xyz(14.0850, 25.5219, 10.6611)
Luminance	0.2552 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9F4A #9F1B70

analogous

#2E9F1B #1B9F4A #1B9F8C

triadic

#1B9F4A #4A1B9F #9F4A1B

tetradic

#1B9F4A #1B2E9F #9F1B70 #9F8C1B

square

#1B9F4A #1B2E9F #9F1B70 #9F8C1B

split-complementary

#1B9F4A #8C1B9F #9F1B2E

monochromatic

#093619 #126B32 #1B9F4A #24D362 #53E286

Accessibility & contrast

On white

3.44

#1B9F4A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#1B9F4A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9F4A

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9F4A	#FFFFFF	#000000	##000000
##1B9F4A	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A09043

Deuteranopia (green-blind)

#928650

Tritanopia (blue-blind)

#009C8C

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #1b9f4a;
/* rgb */ color: rgb(27, 159, 74);
/* oklch */ color: oklch(61.7% 0.164 149.4);

Tailwind

colors: {
  custom: {
    50: '#71bd7e',
    500: '#1b9f4a',
    950: '#000000',
  },
}

SCSS

$custom: #1b9f4a;
$custom-light: #71bd7e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9f4a",
  "rgb": {
    "r": 27,
    "g": 159,
    "b": 74
  },
  "hsl": {
    "h": 141.364,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.61676,
    "c": 0.16396,
    "h": 149.4
  },
  "luminance": 0.25524
}

Semantic roles & 50–950 ramp

primary

#1B9F4A

secondary

#C5519C

accent

#3AAEEE

background

#F7FBF7

surface

#EDF7EE

border

#C8D0C9

text

#09120A

muted

#7B817C

Preview Lab

Preview with #1B9F4A

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

Preview Lab → · Contrast checker → · Palette generator →