#40B3B4#40B3B4

#40B3B4 is a light, moderate teal. Relative luminance 0.366; OKLCH L 70.4% C 0.101 H 195.9°. Best body text is #000000 at 8.32:1 contrast (WCAG AA passes).

Color values

HEX#40B3B4
RGBrgb(64, 179, 180)
HSLhsl(181, 48%, 48%)
HSVhsv(181, 64%, 71%)
CMYKcmyk(64.4%, 0.6%, 0%, 29.4%)
CIE-LABlab(66.99, -31.21, -10.01)
CIE-LCHlch(66.99, 32.78, 197.78°)
OKLaboklab(70.37% -0.0974 -0.0278)
OKLCHoklch(70.37% 0.101 195.9)
XYZxyz(26.4690, 36.6226, 48.8451)
Luminance0.3663 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40B3B4 #B44140
analogous
#40B47B #40B3B4 #4079B4
triadic
#40B3B4 #B440B3 #B3B440
tetradic
#40B3B4 #7B40B4 #B44140 #79B440
square
#40B3B4 #7B40B4 #B44140 #79B440
split-complementary
#40B3B4 #B44079 #B47B40
monochromatic
#20595A #308687 #40B3B4 #68C8C9 #95D9D9

Accessibility & contrast

On white

2.52
#40B3B4 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.32
#40B3B4 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B3B4
8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40B3B4#FFFFFF#000000##000000
##40B3B41.002.528.328.32
#FFFFFF2.521.0021.0021.00
#0000008.3221.001.001.00
##0000008.3221.001.001.00

Color blindness preview

Protanopia (red-blind)
#A7ABB4
Deuteranopia (green-blind)
#959DB5
Tritanopia (blue-blind)
#00B9B3
Achromatopsia (no color)
#A3A3A3

Design tokens & code

CSS
--color: #40b3b4;
/* rgb */ color: rgb(64, 179, 180);
/* oklch */ color: oklch(70.4% 0.101 195.9);
Tailwind
colors: {
  custom: {
    50: '#84caca',
    500: '#40b3b4',
    950: '#000000',
  },
}
SCSS
$custom: #40b3b4;
$custom-light: #84caca;
$custom-dark: #000000;
JSON
{
  "hex": "#40b3b4",
  "rgb": {
    "r": 64,
    "g": 179,
    "b": 180
  },
  "hsl": {
    "h": 180.517,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.70373,
    "c": 0.10125,
    "h": 195.9
  },
  "luminance": 0.36625
}

Semantic roles & 50–950 ramp

primary
#40B3B4
secondary
#C58B8B
accent
#5251D7
background
#F8FCFC
surface
#F0F8F8
border
#CBD1D1
text
#0C1313
muted
#7D8282

Preview Lab

Preview with #40B3B4

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

Preview Lab → · Contrast checker → · Palette generator →

#40B3B4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva