#1B9F4F#1B9F4F

#1B9F4F is a mid, vivid green. Relative luminance 0.256; OKLCH L 61.8% C 0.159 H 150.6°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#1B9F4F
RGB	rgb(27, 159, 79)
HSL	hsl(144, 71%, 36%)
HSV	hsv(144, 83%, 62%)
CMYK	cmyk(83%, 0%, 50.3%, 37.6%)
CIE-LAB	lab(57.65, -51.76, 32.21)
CIE-LCH	lch(57.65, 60.97, 148.11°)
OKLab	oklab(61.75% -0.1389 0.0783)
OKLCH	oklch(61.75% 0.159 150.6)
XYZ	xyz(14.2602, 25.5920, 11.5838)
Luminance	0.2559 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9F4F #9F1B6B

analogous

#299F1B #1B9F4F #1B9F91

triadic

#1B9F4F #4F1B9F #9F4F1B

tetradic

#1B9F4F #1B299F #9F1B6B #9F911B

square

#1B9F4F #1B299F #9F1B6B #9F911B

split-complementary

#1B9F4F #911B9F #9F1B29

monochromatic

#09361B #126B35 #1B9F4F #24D369 #53E28B

Accessibility & contrast

On white

3.43

#1B9F4F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.12

#1B9F4F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9F4F

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9F4F	#FFFFFF	#000000	##000000
##1B9F4F	1.00	3.43	6.12	6.12
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.12	21.00	1.00	1.00
##000000	6.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A09148

Deuteranopia (green-blind)

#918655

Tritanopia (blue-blind)

#009C8C

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #1b9f4f;
/* rgb */ color: rgb(27, 159, 79);
/* oklch */ color: oklch(61.8% 0.159 150.6);

Tailwind

colors: {
  custom: {
    50: '#70bc82',
    500: '#1b9f4f',
    950: '#000000',
  },
}

SCSS

$custom: #1b9f4f;
$custom-light: #70bc82;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9f4f",
  "rgb": {
    "r": 27,
    "g": 159,
    "b": 79
  },
  "hsl": {
    "h": 143.636,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.61753,
    "c": 0.15944,
    "h": 150.6
  },
  "luminance": 0.25594
}

Semantic roles & 50–950 ramp

primary

#1B9F4F

secondary

#C55197

accent

#3AA7EE

background

#F7FBF8

surface

#EDF7EF

border

#C8D0CA

text

#09120A

muted

#7B817C

Preview Lab

Preview with #1B9F4F

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

Preview Lab → · Contrast checker → · Palette generator →