#31B240#31B240

#31B240 is a light, vivid green. Relative luminance 0.329; OKLCH L 67.1% C 0.190 H 144.7°. Best body text is #000000 at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#31B240
RGB	rgb(49, 178, 64)
HSL	hsl(127, 57%, 45%)
HSV	hsv(127, 72%, 70%)
CMYK	cmyk(72.5%, 0%, 64%, 30.2%)
CIE-LAB	lab(64.05, -57.32, 47.07)
CIE-LCH	lch(64.05, 74.17, 140.61°)
OKLab	oklab(67.11% -0.1549 0.1096)
OKLCH	oklch(67.11% 0.19 144.7)
XYZ	xyz(18.1112, 32.8619, 10.2380)
Luminance	0.3286 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B240 #B231A3

analogous

#62B231 #31B240 #31B281

triadic

#31B240 #4031B2 #B24031

tetradic

#31B240 #3162B2 #B231A3 #B28131

square

#31B240 #3162B2 #B231A3 #B28131

split-complementary

#31B240 #8131B2 #B23162

monochromatic

#17521D #24822F #31B240 #51CF60 #81DC8C

Accessibility & contrast

On white

2.77

#31B240 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.57

#31B240 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B240

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B240	#FFFFFF	#000000	##000000
##31B240	1.00	2.77	7.57	7.57
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.57	21.00	1.00	1.00
##000000	7.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A132

Deuteranopia (green-blind)

#A6974A

Tritanopia (blue-blind)

#00AD9A

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #31b240;
/* rgb */ color: rgb(49, 178, 64);
/* oklch */ color: oklch(67.1% 0.190 144.7);

Tailwind

colors: {
  custom: {
    50: '#7cca79',
    500: '#31b240',
    950: '#000000',
  },
}

SCSS

$custom: #31b240;
$custom-light: #7cca79;
$custom-dark: #000000;

JSON

{
  "hex": "#31b240",
  "rgb": {
    "r": 49,
    "g": 178,
    "b": 64
  },
  "hsl": {
    "h": 126.977,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.6711,
    "c": 0.18978,
    "h": 144.7
  },
  "luminance": 0.32864
}

Semantic roles & 50–950 ramp

primary

#31B240

secondary

#C579BD

accent

#48CEE0

background

#F8FCF7

surface

#EFF9EE

border

#CAD2C9

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #31B240

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

Preview Lab → · Contrast checker → · Palette generator →