#31B228#31B228

#31B228 is a light, highly saturated green. Relative luminance 0.326; OKLCH L 66.9% C 0.205 H 142.1°. Best body text is #000000 at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#31B228
RGB	rgb(49, 178, 40)
HSL	hsl(116, 63%, 43%)
HSV	hsv(116, 78%, 70%)
CMYK	cmyk(72.5%, 0%, 77.5%, 30.2%)
CIE-LAB	lab(63.87, -59.46, 56.16)
CIE-LCH	lch(63.87, 81.78, 136.63°)
OKLab	oklab(66.91% -0.1618 0.1258)
OKLCH	oklch(66.91% 0.205 142.1)
XYZ	xyz(17.5690, 32.6450, 7.3823)
Luminance	0.3265 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B228 #A928B2

analogous

#76B228 #31B228 #28B264

triadic

#31B228 #2831B2 #B22831

tetradic

#31B228 #2876B2 #A928B2 #B26428

square

#31B228 #2876B2 #A928B2 #B26428

split-complementary

#31B228 #6428B2 #B22876

monochromatic

#154E12 #23801D #31B228 #4CD543 #7CE075

Accessibility & contrast

On white

2.79

#31B228 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.53

#31B228 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B228

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B228	#FFFFFF	#000000	##000000
##31B228	1.00	2.79	7.53	7.53
#FFFFFF	2.79	1.00	21.00	21.00
#000000	7.53	21.00	1.00	1.00
##000000	7.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A103

Deuteranopia (green-blind)

#A89738

Tritanopia (blue-blind)

#02AC98

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #31b228;
/* rgb */ color: rgb(49, 178, 40);
/* oklch */ color: oklch(66.9% 0.205 142.1);

Tailwind

colors: {
  custom: {
    50: '#7dca6d',
    500: '#31b228',
    950: '#000000',
  },
}

SCSS

$custom: #31b228;
$custom-light: #7dca6d;
$custom-dark: #000000;

JSON

{
  "hex": "#31b228",
  "rgb": {
    "r": 49,
    "g": 178,
    "b": 40
  },
  "hsl": {
    "h": 116.087,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.66907,
    "c": 0.20497,
    "h": 142.1
  },
  "luminance": 0.32647
}

Semantic roles & 50–950 ramp

primary

#31B228

secondary

#C16FC7

accent

#41E6DC

background

#F8FCF6

surface

#EFF9EC

border

#CAD2C7

text

#0B1307

muted

#7C827A

Preview Lab

Preview with #31B228

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

Preview Lab → · Contrast checker → · Palette generator →