#31B73B#31B73B

#31B73B is a light, vivid green. Relative luminance 0.348; OKLCH L 68.4% C 0.199 H 144.0°. Best body text is #000000 at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#31B73B
RGB	rgb(49, 183, 59)
HSL	hsl(124, 58%, 45%)
HSV	hsv(124, 73%, 72%)
CMYK	cmyk(73.2%, 0%, 67.8%, 28.2%)
CIE-LAB	lab(65.62, -59.51, 50.91)
CIE-LCH	lch(65.62, 78.32, 139.45°)
OKLab	oklab(68.4% -0.1611 0.1172)
OKLCH	oklch(68.4% 0.199 144)
XYZ	xyz(18.9883, 34.8336, 9.8597)
Luminance	0.3484 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B73B #B731AD

analogous

#6AB731 #31B73B #31B77E

triadic

#31B73B #3B31B7 #B73B31

tetradic

#31B73B #316AB7 #B731AD #B77E31

square

#31B73B #316AB7 #B731AD #B77E31

split-complementary

#31B73B #7E31B7 #B7316A

monochromatic

#17561C #24872B #31B73B #54D15D #84DE8B

Accessibility & contrast

On white

2.64

#31B73B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.97

#31B73B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B73B

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B73B	#FFFFFF	#000000	##000000
##31B73B	1.00	2.64	7.97	7.97
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.97	21.00	1.00	1.00
##000000	7.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA62A

Deuteranopia (green-blind)

#AB9B47

Tritanopia (blue-blind)

#00B29E

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #31b73b;
/* rgb */ color: rgb(49, 183, 59);
/* oklch */ color: oklch(68.4% 0.199 144.0);

Tailwind

colors: {
  custom: {
    50: '#7ece77',
    500: '#31b73b',
    950: '#000000',
  },
}

SCSS

$custom: #31b73b;
$custom-light: #7ece77;
$custom-dark: #000000;

JSON

{
  "hex": "#31b73b",
  "rgb": {
    "r": 49,
    "g": 183,
    "b": 59
  },
  "hsl": {
    "h": 124.478,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.68398,
    "c": 0.19923,
    "h": 144
  },
  "luminance": 0.34836
}

Semantic roles & 50–950 ramp

primary

#31B73B

secondary

#C87CC2

accent

#47D5E1

background

#F8FCF7

surface

#F0F9ED

border

#CBD2C8

text

#0B1409

muted

#7C827B

Preview Lab

Preview with #31B73B

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

Preview Lab → · Contrast checker → · Palette generator →