#31B580#31B580

#31B580 is a light, vivid teal. Relative luminance 0.353; OKLCH L 69.0% C 0.137 H 161.6°. Best body text is #000000 at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#31B580
RGB	rgb(49, 181, 128)
HSL	hsl(156, 57%, 45%)
HSV	hsv(156, 73%, 71%)
CMYK	cmyk(72.9%, 0%, 29.3%, 29%)
CIE-LAB	lab(65.95, -47.70, 17.08)
CIE-LCH	lch(65.95, 50.67, 160.30°)
OKLab	oklab(68.99% -0.1303 0.0434)
OKLCH	oklch(68.99% 0.137 161.6)
XYZ	xyz(21.6845, 35.2567, 26.0803)
Luminance	0.3526 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B580 #B53166

analogous

#31B53E #31B580 #31A8B5

triadic

#31B580 #8031B5 #B58031

tetradic

#31B580 #3E31B5 #B53166 #A8B531

square

#31B580 #3E31B5 #B53166 #A8B531

split-complementary

#31B580 #B531A8 #B53E31

monochromatic

#17553C #24855E #31B580 #53D09E #83DDB9

Accessibility & contrast

On white

2.61

#31B580 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.05

#31B580 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B580

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B580	#FFFFFF	#000000	##000000
##31B580	1.00	2.61	8.05	8.05
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.05	21.00	1.00	1.00
##000000	8.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2A77D

Deuteranopia (green-blind)

#A29B83

Tritanopia (blue-blind)

#00B5A7

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #31b580;
/* rgb */ color: rgb(49, 181, 128);
/* oklch */ color: oklch(69.0% 0.137 161.6);

Tailwind

colors: {
  custom: {
    50: '#7ccca5',
    500: '#31b580',
    950: '#000000',
  },
}

SCSS

$custom: #31b580;
$custom-light: #7ccca5;
$custom-dark: #000000;

JSON

{
  "hex": "#31b580",
  "rgb": {
    "r": 49,
    "g": 181,
    "b": 128
  },
  "hsl": {
    "h": 155.909,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.68986,
    "c": 0.13731,
    "h": 161.6
  },
  "luminance": 0.35259
}

Semantic roles & 50–950 ramp

primary

#31B580

secondary

#C77B99

accent

#4785E1

background

#F8FCFA

surface

#EFF9F4

border

#CAD2CE

text

#0B130F

muted

#7C827F

Preview Lab

Preview with #31B580

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

Preview Lab → · Contrast checker → · Palette generator →