#31B128#31B128

#31B128 is a light, highly saturated green. Relative luminance 0.323; OKLCH L 66.6% C 0.204 H 142.1°. Best body text is #000000 at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#31B128
RGB	rgb(49, 177, 40)
HSL	hsl(116, 63%, 43%)
HSV	hsv(116, 77%, 69%)
CMYK	cmyk(72.3%, 0%, 77.4%, 30.6%)
CIE-LAB	lab(63.55, -59.13, 55.84)
CIE-LCH	lch(63.55, 81.33, 136.64°)
OKLab	oklab(66.64% -0.161 0.1251)
OKLCH	oklch(66.64% 0.204 142.1)
XYZ	xyz(17.3708, 32.2485, 7.3162)
Luminance	0.3225 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B128 #A828B1

analogous

#76B128 #31B128 #28B163

triadic

#31B128 #2831B1 #B12831

tetradic

#31B128 #2876B1 #A828B1 #B16328

square

#31B128 #2876B1 #A828B1 #B16328

split-complementary

#31B128 #6328B1 #B12876

monochromatic

#154D11 #237F1D #31B128 #4CD442 #7BE074

Accessibility & contrast

On white

2.82

#31B128 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.45

#31B128 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B128

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B128	#FFFFFF	#000000	##000000
##31B128	1.00	2.82	7.45	7.45
#FFFFFF	2.82	1.00	21.00	21.00
#000000	7.45	21.00	1.00	1.00
##000000	7.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A003

Deuteranopia (green-blind)

#A79638

Tritanopia (blue-blind)

#03AC97

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #31b128;
/* rgb */ color: rgb(49, 177, 40);
/* oklch */ color: oklch(66.6% 0.204 142.1);

Tailwind

colors: {
  custom: {
    50: '#7dc96c',
    500: '#31b128',
    950: '#000000',
  },
}

SCSS

$custom: #31b128;
$custom-light: #7dc96c;
$custom-dark: #000000;

JSON

{
  "hex": "#31b128",
  "rgb": {
    "r": 49,
    "g": 177,
    "b": 40
  },
  "hsl": {
    "h": 116.058,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.66638,
    "c": 0.20388,
    "h": 142.1
  },
  "luminance": 0.3225
}

Semantic roles & 50–950 ramp

primary

#31B128

secondary

#C16EC7

accent

#42E6DB

background

#F8FCF6

surface

#EFF8EC

border

#CAD1C7

text

#0B1307

muted

#7C827A

Preview Lab

Preview with #31B128

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

Preview Lab → · Contrast checker → · Palette generator →