#1B9F4B#1B9F4B

#1B9F4B is a mid, vivid green. Relative luminance 0.255; OKLCH L 61.7% C 0.163 H 149.6°. Best body text is #000000 at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#1B9F4B
RGB	rgb(27, 159, 75)
HSL	hsl(142, 71%, 36%)
HSV	hsv(142, 83%, 62%)
CMYK	cmyk(83%, 0%, 52.8%, 37.6%)
CIE-LAB	lab(57.59, -52.41, 34.19)
CIE-LCH	lch(57.59, 62.58, 146.88°)
OKLab	oklab(61.69% -0.1406 0.0825)
OKLCH	oklch(61.69% 0.163 149.6)
XYZ	xyz(14.1189, 25.5355, 10.8400)
Luminance	0.2554 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9F4B #9F1B6F

analogous

#2D9F1B #1B9F4B #1B9F8D

triadic

#1B9F4B #4B1B9F #9F4B1B

tetradic

#1B9F4B #1B2D9F #9F1B6F #9F8D1B

square

#1B9F4B #1B2D9F #9F1B6F #9F8D1B

split-complementary

#1B9F4B #8D1B9F #9F1B2D

monochromatic

#09361A #126B32 #1B9F4B #24D364 #53E287

Accessibility & contrast

On white

3.44

#1B9F4B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.11

#1B9F4B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9F4B

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9F4B	#FFFFFF	#000000	##000000
##1B9F4B	1.00	3.44	6.11	6.11
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.11	21.00	1.00	1.00
##000000	6.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A09044

Deuteranopia (green-blind)

#928651

Tritanopia (blue-blind)

#009C8C

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #1b9f4b;
/* rgb */ color: rgb(27, 159, 75);
/* oklch */ color: oklch(61.7% 0.163 149.6);

Tailwind

colors: {
  custom: {
    50: '#71bd7f',
    500: '#1b9f4b',
    950: '#000000',
  },
}

SCSS

$custom: #1b9f4b;
$custom-light: #71bd7f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9f4b",
  "rgb": {
    "r": 27,
    "g": 159,
    "b": 75
  },
  "hsl": {
    "h": 141.818,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.61691,
    "c": 0.16306,
    "h": 149.6
  },
  "luminance": 0.25537
}

Semantic roles & 50–950 ramp

primary

#1B9F4B

secondary

#C5519B

accent

#3AACEE

background

#F7FBF7

surface

#EDF7EE

border

#C8D0C9

text

#09120A

muted

#7B817C

Preview Lab

Preview with #1B9F4B

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

Preview Lab → · Contrast checker → · Palette generator →