#31B579#31B579

#31B579 is a light, vivid teal. Relative luminance 0.351; OKLCH L 68.8% C 0.143 H 158.6°. Best body text is #000000 at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#31B579
RGB	rgb(49, 181, 121)
HSL	hsl(153, 57%, 45%)
HSV	hsv(153, 73%, 71%)
CMYK	cmyk(72.9%, 0%, 33.1%, 29%)
CIE-LAB	lab(65.81, -49.21, 20.68)
CIE-LCH	lch(65.81, 53.38, 157.21°)
OKLab	oklab(68.83% -0.1336 0.0522)
OKLCH	oklch(68.83% 0.143 158.6)
XYZ	xyz(21.2396, 35.0787, 23.7369)
Luminance	0.3508 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B579 #B5316D

analogous

#31B537 #31B579 #31AFB5

triadic

#31B579 #7931B5 #B57931

tetradic

#31B579 #3731B5 #B5316D #AFB531

square

#31B579 #3731B5 #B5316D #AFB531

split-complementary

#31B579 #B531AF #B53731

monochromatic

#175539 #248559 #31B579 #53D097 #83DDB4

Accessibility & contrast

On white

2.62

#31B579 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.02

#31B579 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B579

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B579	#FFFFFF	#000000	##000000
##31B579	1.00	2.62	8.02	8.02
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.02	21.00	1.00	1.00
##000000	8.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3A775

Deuteranopia (green-blind)

#A39B7D

Tritanopia (blue-blind)

#00B4A5

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #31b579;
/* rgb */ color: rgb(49, 181, 121);
/* oklch */ color: oklch(68.8% 0.143 158.6);

Tailwind

colors: {
  custom: {
    50: '#7ccca0',
    500: '#31b579',
    950: '#000000',
  },
}

SCSS

$custom: #31b579;
$custom-light: #7ccca0;
$custom-dark: #000000;

JSON

{
  "hex": "#31b579",
  "rgb": {
    "r": 49,
    "g": 181,
    "b": 121
  },
  "hsl": {
    "h": 152.727,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.68826,
    "c": 0.14345,
    "h": 158.6
  },
  "luminance": 0.35081
}

Semantic roles & 50–950 ramp

primary

#31B579

secondary

#C77B9D

accent

#478DE1

background

#F8FCF9

surface

#EFF9F2

border

#CAD2CC

text

#0B130E

muted

#7C827E

Preview Lab

Preview with #31B579

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

Preview Lab → · Contrast checker → · Palette generator →