#1B9E31#1B9E31

#1B9E31 is a mid, vivid green. Relative luminance 0.249; OKLCH L 61.1% C 0.183 H 144.9°. Best body text is #000000 at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#1B9E31
RGB	rgb(27, 158, 49)
HSL	hsl(130, 71%, 36%)
HSV	hsv(130, 83%, 62%)
CMYK	cmyk(82.9%, 0%, 69%, 38%)
CIE-LAB	lab(56.98, -55.45, 45.66)
CIE-LCH	lch(56.98, 71.83, 140.53°)
OKLab	oklab(61.1% -0.1495 0.1051)
OKLCH	oklch(61.1% 0.183 144.9)
XYZ	xyz(13.2323, 24.9069, 7.0152)
Luminance	0.2491 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9E31 #9E1B88

analogous

#479E1B #1B9E31 #1B9E73

triadic

#1B9E31 #311B9E #9E311B

tetradic

#1B9E31 #1B479E #9E1B88 #9E731B

square

#1B9E31 #1B479E #9E1B88 #9E731B

split-complementary

#1B9E31 #731B9E #9E1B47

monochromatic

#093511 #126A21 #1B9E31 #24D241 #52E16A

Accessibility & contrast

On white

3.51

#1B9E31 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.98

#1B9E31 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9E31

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9E31	#FFFFFF	#000000	##000000
##1B9E31	1.00	3.51	5.98	5.98
#FFFFFF	3.51	1.00	21.00	21.00
#000000	5.98	21.00	1.00	1.00
##000000	5.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A18F22

Deuteranopia (green-blind)

#93853B

Tritanopia (blue-blind)

#009A88

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #1b9e31;
/* rgb */ color: rgb(27, 158, 49);
/* oklch */ color: oklch(61.1% 0.183 144.9);

Tailwind

colors: {
  custom: {
    50: '#71bc6f',
    500: '#1b9e31',
    950: '#000000',
  },
}

SCSS

$custom: #1b9e31;
$custom-light: #71bc6f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9e31",
  "rgb": {
    "r": 27,
    "g": 158,
    "b": 49
  },
  "hsl": {
    "h": 130.076,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.61095,
    "c": 0.18279,
    "h": 144.9
  },
  "luminance": 0.24908
}

Semantic roles & 50–950 ramp

primary

#1B9E31

secondary

#C451B1

accent

#3ACFEE

background

#F7FBF6

surface

#EEF6EC

border

#C9D0C7

text

#091208

muted

#7B817B

Preview Lab

Preview with #1B9E31

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

Preview Lab → · Contrast checker → · Palette generator →