#31B577#31B577

#31B577 is a light, vivid teal. Relative luminance 0.350; OKLCH L 68.8% C 0.145 H 157.9°. Best body text is #000000 at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#31B577
RGB	rgb(49, 181, 119)
HSL	hsl(152, 57%, 45%)
HSV	hsv(152, 73%, 71%)
CMYK	cmyk(72.9%, 0%, 34.3%, 29%)
CIE-LAB	lab(65.77, -49.63, 21.71)
CIE-LCH	lch(65.77, 54.17, 156.38°)
OKLab	oklab(68.78% -0.1345 0.0547)
OKLCH	oklch(68.78% 0.145 157.9)
XYZ	xyz(21.1182, 35.0302, 23.0977)
Luminance	0.3503 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B577 #B5316F

analogous

#31B535 #31B577 #31B1B5

triadic

#31B577 #7731B5 #B57731

tetradic

#31B577 #3531B5 #B5316F #B1B531

square

#31B577 #3531B5 #B5316F #B1B531

split-complementary

#31B577 #B531B1 #B53531

monochromatic

#175538 #248557 #31B577 #53D095 #83DDB3

Accessibility & contrast

On white

2.62

#31B577 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.01

#31B577 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B577

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B577	#FFFFFF	#000000	##000000
##31B577	1.00	2.62	8.01	8.01
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.01	21.00	1.00	1.00
##000000	8.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3A773

Deuteranopia (green-blind)

#A39B7B

Tritanopia (blue-blind)

#00B4A5

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #31b577;
/* rgb */ color: rgb(49, 181, 119);
/* oklch */ color: oklch(68.8% 0.145 157.9);

Tailwind

colors: {
  custom: {
    50: '#7ccc9e',
    500: '#31b577',
    950: '#000000',
  },
}

SCSS

$custom: #31b577;
$custom-light: #7ccc9e;
$custom-dark: #000000;

JSON

{
  "hex": "#31b577",
  "rgb": {
    "r": 49,
    "g": 181,
    "b": 119
  },
  "hsl": {
    "h": 151.818,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.68783,
    "c": 0.14524,
    "h": 157.9
  },
  "luminance": 0.35033
}

Semantic roles & 50–950 ramp

primary

#31B577

secondary

#C77B9F

accent

#478FE1

background

#F8FCF9

surface

#EFF9F2

border

#CAD2CC

text

#0B130E

muted

#7C827E

Preview Lab

Preview with #31B577

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

Preview Lab → · Contrast checker → · Palette generator →