#31B581#31B581

#31B581 is a light, vivid teal. Relative luminance 0.353; OKLCH L 69.0% C 0.136 H 162.0°. Best body text is #000000 at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#31B581
RGB	rgb(49, 181, 129)
HSL	hsl(156, 57%, 45%)
HSV	hsv(156, 73%, 71%)
CMYK	cmyk(72.9%, 0%, 28.7%, 29%)
CIE-LAB	lab(65.97, -47.48, 16.57)
CIE-LCH	lch(65.97, 50.29, 160.77°)
OKLab	oklab(69.01% -0.1298 0.0422)
OKLCH	oklch(69.01% 0.136 162)
XYZ	xyz(21.7506, 35.2832, 26.4286)
Luminance	0.3529 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B581 #B53165

analogous

#31B53F #31B581 #31A7B5

triadic

#31B581 #8131B5 #B58131

tetradic

#31B581 #3F31B5 #B53165 #A7B531

square

#31B581 #3F31B5 #B53165 #A7B531

split-complementary

#31B581 #B531A7 #B53F31

monochromatic

#17553C #24855F #31B581 #53D09F #83DDBA

Accessibility & contrast

On white

2.61

#31B581 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.06

#31B581 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B581

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B581	#FFFFFF	#000000	##000000
##31B581	1.00	2.61	8.06	8.06
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.06	21.00	1.00	1.00
##000000	8.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2A77E

Deuteranopia (green-blind)

#A29B84

Tritanopia (blue-blind)

#00B5A7

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #31b581;
/* rgb */ color: rgb(49, 181, 129);
/* oklch */ color: oklch(69.0% 0.136 162.0);

Tailwind

colors: {
  custom: {
    50: '#7ccca5',
    500: '#31b581',
    950: '#000000',
  },
}

SCSS

$custom: #31b581;
$custom-light: #7ccca5;
$custom-dark: #000000;

JSON

{
  "hex": "#31b581",
  "rgb": {
    "r": 49,
    "g": 181,
    "b": 129
  },
  "hsl": {
    "h": 156.364,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.69009,
    "c": 0.13645,
    "h": 162
  },
  "luminance": 0.35286
}

Semantic roles & 50–950 ramp

primary

#31B581

secondary

#C77B99

accent

#4784E1

background

#F8FCFA

surface

#EFF9F4

border

#CAD2CE

text

#0B130F

muted

#7C827F

Preview Lab

Preview with #31B581

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

Preview Lab → · Contrast checker → · Palette generator →