#31B973#31B973

#31B973 is a light, vivid green. Relative luminance 0.366; OKLCH L 69.7% C 0.154 H 155.6°. Best body text is #000000 at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#31B973
RGB	rgb(49, 185, 115)
HSL	hsl(149, 58%, 46%)
HSV	hsv(149, 74%, 73%)
CMYK	cmyk(73.5%, 0%, 37.8%, 27.5%)
CIE-LAB	lab(66.97, -51.98, 25.45)
CIE-LCH	lch(66.97, 57.87, 153.92°)
OKLab	oklab(69.74% -0.1404 0.0637)
OKLCH	oklch(69.74% 0.154 155.6)
XYZ	xyz(21.7080, 36.5862, 22.1341)
Luminance	0.3659 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B973 #B93177

analogous

#33B931 #31B973 #31B9B7

triadic

#31B973 #7331B9 #B97331

tetradic

#31B973 #3133B9 #B93177 #B9B731

square

#31B973 #3133B9 #B93177 #B9B731

split-complementary

#31B973 #B731B9 #B93133

monochromatic

#175837 #248955 #31B973 #55D292 #86DFB1

Accessibility & contrast

On white

2.52

#31B973 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.32

#31B973 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B973

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B973	#FFFFFF	#000000	##000000
##31B973	1.00	2.52	8.32	8.32
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.32	21.00	1.00	1.00
##000000	8.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8AA6E

Deuteranopia (green-blind)

#A89E78

Tritanopia (blue-blind)

#00B7A7

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #31b973;
/* rgb */ color: rgb(49, 185, 115);
/* oklch */ color: oklch(69.7% 0.154 155.6);

Tailwind

colors: {
  custom: {
    50: '#7ccf9c',
    500: '#31b973',
    950: '#000000',
  },
}

SCSS

$custom: #31b973;
$custom-light: #7ccf9c;
$custom-dark: #000000;

JSON

{
  "hex": "#31b973",
  "rgb": {
    "r": 49,
    "g": 185,
    "b": 115
  },
  "hsl": {
    "h": 149.118,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.69742,
    "c": 0.15415,
    "h": 155.6
  },
  "luminance": 0.36589
}

Semantic roles & 50–950 ramp

primary

#31B973

secondary

#C87DA4

accent

#4696E1

background

#F8FCF9

surface

#EFF9F2

border

#CAD2CC

text

#0B140E

muted

#7C827E

Preview Lab

Preview with #31B973

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

Preview Lab → · Contrast checker → · Palette generator →