#31B871#31B871

#31B871 is a light, vivid green. Relative luminance 0.361; OKLCH L 69.4% C 0.155 H 155.1°. Best body text is #000000 at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#31B871
RGB	rgb(49, 184, 113)
HSL	hsl(148, 58%, 46%)
HSV	hsv(148, 73%, 72%)
CMYK	cmyk(73.4%, 0%, 38.6%, 27.8%)
CIE-LAB	lab(66.61, -51.99, 26.04)
CIE-LCH	lch(66.61, 58.14, 153.39°)
OKLab	oklab(69.44% -0.1403 0.065)
OKLCH	oklch(69.44% 0.155 155.1)
XYZ	xyz(21.3857, 36.1237, 21.4651)
Luminance	0.3613 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B871 #B83178

analogous

#35B831 #31B871 #31B8B4

triadic

#31B871 #7131B8 #B87131

tetradic

#31B871 #3135B8 #B83178 #B8B431

square

#31B871 #3135B8 #B83178 #B8B431

split-complementary

#31B871 #B431B8 #B83135

monochromatic

#175736 #248853 #31B871 #55D290 #85DEAF

Accessibility & contrast

On white

2.55

#31B871 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.23

#31B871 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B871

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B871	#FFFFFF	#000000	##000000
##31B871	1.00	2.55	8.23	8.23
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.23	21.00	1.00	1.00
##000000	8.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A96C

Deuteranopia (green-blind)

#A79D76

Tritanopia (blue-blind)

#00B6A6

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #31b871;
/* rgb */ color: rgb(49, 184, 113);
/* oklch */ color: oklch(69.4% 0.155 155.1);

Tailwind

colors: {
  custom: {
    50: '#7cce9a',
    500: '#31b871',
    950: '#000000',
  },
}

SCSS

$custom: #31b871;
$custom-light: #7cce9a;
$custom-dark: #000000;

JSON

{
  "hex": "#31b871",
  "rgb": {
    "r": 49,
    "g": 184,
    "b": 113
  },
  "hsl": {
    "h": 148.444,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.69442,
    "c": 0.15467,
    "h": 155.1
  },
  "luminance": 0.36126
}

Semantic roles & 50–950 ramp

primary

#31B871

secondary

#C87DA4

accent

#4798E1

background

#F8FCF9

surface

#EFF9F2

border

#CAD2CC

text

#0B140E

muted

#7C827E

Preview Lab

Preview with #31B871

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

Preview Lab → · Contrast checker → · Palette generator →