#31BB4B#31BB4B

#31BB4B is a light, vivid green. Relative luminance 0.367; OKLCH L 69.6% C 0.192 H 146.0°. Best body text is #000000 at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#31BB4B
RGB	rgb(49, 187, 75)
HSL	hsl(131, 58%, 46%)
HSV	hsv(131, 74%, 73%)
CMYK	cmyk(73.8%, 0%, 59.9%, 26.7%)
CIE-LAB	lab(67.05, -59.08, 45.55)
CIE-LCH	lch(67.05, 74.60, 142.36°)
OKLab	oklab(69.63% -0.1593 0.1074)
OKLCH	oklch(69.63% 0.192 146)
XYZ	xyz(20.3055, 36.6993, 12.6688)
Luminance	0.3670 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31BB4B #BB31A1

analogous

#5CBB31 #31BB4B #31BB90

triadic

#31BB4B #4B31BB #BB4B31

tetradic

#31BB4B #315CBB #BB31A1 #BB9031

square

#31BB4B #315CBB #BB31A1 #BB9031

split-complementary

#31BB4B #9031BB #BB315C

monochromatic

#185A24 #248B38 #31BB4B #56D36E #87E098

Accessibility & contrast

On white

2.52

#31BB4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.34

#31BB4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31BB4B

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31BB4B	#FFFFFF	#000000	##000000
##31BB4B	1.00	2.52	8.34	8.34
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.34	21.00	1.00	1.00
##000000	8.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEAA3F

Deuteranopia (green-blind)

#AE9F54

Tritanopia (blue-blind)

#00B6A3

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #31bb4b;
/* rgb */ color: rgb(49, 187, 75);
/* oklch */ color: oklch(69.6% 0.192 146.0);

Tailwind

colors: {
  custom: {
    50: '#7ed181',
    500: '#31bb4b',
    950: '#000000',
  },
}

SCSS

$custom: #31bb4b;
$custom-light: #7ed181;
$custom-dark: #000000;

JSON

{
  "hex": "#31bb4b",
  "rgb": {
    "r": 49,
    "g": 187,
    "b": 75
  },
  "hsl": {
    "h": 131.304,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.69633,
    "c": 0.19209,
    "h": 146
  },
  "luminance": 0.36702
}

Semantic roles & 50–950 ramp

primary

#31BB4B

secondary

#C97FBB

accent

#46C4E2

background

#F8FCF8

surface

#F0F9EF

border

#CBD2CA

text

#0B140A

muted

#7C827C

Preview Lab

Preview with #31BB4B

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

Preview Lab → · Contrast checker → · Palette generator →