#40B1B3#40B1B3

#40B1B3 is a light, moderate teal. Relative luminance 0.358; OKLCH L 69.8% C 0.100 H 196.8°. Best body text is #000000 at 8.16:1 contrast (WCAG AA passes).

Color values

HEX#40B1B3
RGBrgb(64, 177, 179)
HSLhsl(181, 47%, 48%)
HSVhsv(181, 64%, 70%)
CMYKcmyk(64.2%, 1.1%, 0%, 29.8%)
CIE-LABlab(66.36, -30.54, -10.41)
CIE-LCHlch(66.36, 32.26, 198.82°)
OKLaboklab(69.85% -0.0957 -0.0289)
OKLCHoklch(69.85% 0.1 196.8)
XYZxyz(25.9696, 35.7861, 48.1778)
Luminance0.3579 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40B1B3 #B34240
analogous
#40B37B #40B1B3 #4078B3
triadic
#40B1B3 #B340B1 #B1B340
tetradic
#40B1B3 #7B40B3 #B34240 #78B340
square
#40B1B3 #7B40B3 #B34240 #78B340
split-complementary
#40B1B3 #B34078 #B37B40
monochromatic
#205859 #308486 #40B1B3 #67C7C9 #94D8D9

Accessibility & contrast

On white

2.57
#40B1B3 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.16
#40B1B3 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B1B3
8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40B1B3#FFFFFF#000000##000000
##40B1B31.002.578.168.16
#FFFFFF2.571.0021.0021.00
#0000008.1621.001.001.00
##0000008.1621.001.001.00

Color blindness preview

Protanopia (red-blind)
#A5A9B3
Deuteranopia (green-blind)
#949CB4
Tritanopia (blue-blind)
#00B7B1
Achromatopsia (no color)
#A1A1A1

Design tokens & code

CSS
--color: #40b1b3;
/* rgb */ color: rgb(64, 177, 179);
/* oklch */ color: oklch(69.8% 0.100 196.8);
Tailwind
colors: {
  custom: {
    50: '#84c8c9',
    500: '#40b1b3',
    950: '#000000',
  },
}
SCSS
$custom: #40b1b3;
$custom-light: #84c8c9;
$custom-dark: #000000;
JSON
{
  "hex": "#40b1b3",
  "rgb": {
    "r": 64,
    "g": 177,
    "b": 179
  },
  "hsl": {
    "h": 181.043,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.69848,
    "c": 0.09997,
    "h": 196.8
  },
  "luminance": 0.35789
}

Semantic roles & 50–950 ramp

primary
#40B1B3
secondary
#C48B8A
accent
#5351D7
background
#F8FCFC
surface
#F0F8F8
border
#CBD1D1
text
#0C1313
muted
#7D8282

Preview Lab

Preview with #40B1B3

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

Preview Lab → · Contrast checker → · Palette generator →

#40B1B3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva