#1B9F31#1B9F31

#1B9F31 is a mid, vivid green. Relative luminance 0.253; OKLCH L 61.4% C 0.184 H 144.9°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#1B9F31
RGB	rgb(27, 159, 49)
HSL	hsl(130, 71%, 36%)
HSV	hsv(130, 83%, 62%)
CMYK	cmyk(83%, 0%, 69.2%, 37.6%)
CIE-LAB	lab(57.32, -55.77, 46.01)
CIE-LCH	lch(57.32, 72.30, 140.47°)
OKLab	oklab(61.37% -0.1504 0.1059)
OKLCH	oklch(61.37% 0.184 144.9)
XYZ	xyz(13.4036, 25.2494, 7.0723)
Luminance	0.2525 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9F31 #9F1B89

analogous

#479F1B #1B9F31 #1B9F73

triadic

#1B9F31 #311B9F #9F311B

tetradic

#1B9F31 #1B479F #9F1B89 #9F731B

square

#1B9F31 #1B479F #9F1B89 #9F731B

split-complementary

#1B9F31 #731B9F #9F1B47

monochromatic

#093611 #126B21 #1B9F31 #24D341 #53E26B

Accessibility & contrast

On white

3.47

#1B9F31 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#1B9F31 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9F31

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9F31	#FFFFFF	#000000	##000000
##1B9F31	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A29021

Deuteranopia (green-blind)

#94863C

Tritanopia (blue-blind)

#009B89

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #1b9f31;
/* rgb */ color: rgb(27, 159, 49);
/* oklch */ color: oklch(61.4% 0.184 144.9);

Tailwind

colors: {
  custom: {
    50: '#72bd6f',
    500: '#1b9f31',
    950: '#000000',
  },
}

SCSS

$custom: #1b9f31;
$custom-light: #72bd6f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9f31",
  "rgb": {
    "r": 27,
    "g": 159,
    "b": 49
  },
  "hsl": {
    "h": 130,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.61372,
    "c": 0.18394,
    "h": 144.9
  },
  "luminance": 0.25251
}

Semantic roles & 50–950 ramp

primary

#1B9F31

secondary

#C551B1

accent

#3AD0EE

background

#F7FBF6

surface

#EEF7EC

border

#C9D0C7

text

#091208

muted

#7B817B

Preview Lab

Preview with #1B9F31

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

Preview Lab → · Contrast checker → · Palette generator →