#31B771#31B771

#31B771 is a light, vivid green. Relative luminance 0.357; OKLCH L 69.2% C 0.153 H 155.3°. Best body text is #000000 at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#31B771
RGB	rgb(49, 183, 113)
HSL	hsl(149, 58%, 45%)
HSV	hsv(149, 73%, 72%)
CMYK	cmyk(73.2%, 0%, 38.3%, 28.2%)
CIE-LAB	lab(66.30, -51.60, 25.62)
CIE-LCH	lch(66.30, 57.61, 153.60°)
OKLab	oklab(69.18% -0.1393 0.064)
OKLCH	oklch(69.18% 0.153 155.3)
XYZ	xyz(21.1788, 35.7097, 21.3961)
Luminance	0.3571 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B771 #B73177

analogous

#34B731 #31B771 #31B7B4

triadic

#31B771 #7131B7 #B77131

tetradic

#31B771 #3134B7 #B73177 #B7B431

square

#31B771 #3134B7 #B73177 #B7B431

split-complementary

#31B771 #B431B7 #B73134

monochromatic

#175635 #248753 #31B771 #54D190 #84DEAF

Accessibility & contrast

On white

2.58

#31B771 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.14

#31B771 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B771

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B771	#FFFFFF	#000000	##000000
##31B771	1.00	2.58	8.14	8.14
#FFFFFF	2.58	1.00	21.00	21.00
#000000	8.14	21.00	1.00	1.00
##000000	8.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A86C

Deuteranopia (green-blind)

#A69D76

Tritanopia (blue-blind)

#00B5A5

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #31b771;
/* rgb */ color: rgb(49, 183, 113);
/* oklch */ color: oklch(69.2% 0.153 155.3);

Tailwind

colors: {
  custom: {
    50: '#7cce9a',
    500: '#31b771',
    950: '#000000',
  },
}

SCSS

$custom: #31b771;
$custom-light: #7cce9a;
$custom-dark: #000000;

JSON

{
  "hex": "#31b771",
  "rgb": {
    "r": 49,
    "g": 183,
    "b": 113
  },
  "hsl": {
    "h": 148.657,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.6918,
    "c": 0.15335,
    "h": 155.3
  },
  "luminance": 0.35712
}

Semantic roles & 50–950 ramp

primary

#31B771

secondary

#C87CA4

accent

#4797E1

background

#F8FCF9

surface

#EFF9F2

border

#CAD2CC

text

#0B140E

muted

#7C827E

Preview Lab

Preview with #31B771

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

Preview Lab → · Contrast checker → · Palette generator →