#40B1DC#40B1DC

#40B1DC is a light, moderate cyan. Relative luminance 0.377; OKLCH L 71.5% C 0.117 H 227.5°. Best body text is #000000 at 8.54:1 contrast (WCAG AA passes).

Color values

HEX#40B1DC
RGBrgb(64, 177, 220)
HSLhsl(197, 69%, 56%)
HSVhsv(197, 71%, 86%)
CMYKcmyk(70.9%, 19.5%, 0%, 13.7%)
CIE-LABlab(67.80, -17.95, -30.85)
CIE-LCHlch(67.80, 35.69, 239.80°)
OKLaboklab(71.49% -0.0793 -0.0865)
OKLCHoklch(71.49% 0.117 227.5)
XYZxyz(30.7495, 37.6981, 73.3521)
Luminance0.3770 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40B1DC #DC6B40
analogous
#40DCB9 #40B1DC #4063DC
triadic
#40B1DC #DC40B1 #B1DC40
tetradic
#40B1DC #B940DC #DC6B40 #63DC40
square
#40B1DC #B940DC #DC6B40 #63DC40
split-complementary
#40B1DC #DC4063 #DCB940
monochromatic
#196A89 #2392BC #40B1DC #74C6E5 #A7DBEF

Accessibility & contrast

On white

2.46
#40B1DC on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.54
#40B1DC on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B1DC
8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40B1DC#FFFFFF#000000##000000
##40B1DC1.002.468.548.54
#FFFFFF2.461.0021.0021.00
#0000008.5421.001.001.00
##0000008.5421.001.001.00

Color blindness preview

Protanopia (red-blind)
#9AAEDE
Deuteranopia (green-blind)
#859EDB
Tritanopia (blue-blind)
#00BDBF
Achromatopsia (no color)
#A5A5A5

Design tokens & code

CSS
--color: #40b1dc;
/* rgb */ color: rgb(64, 177, 220);
/* oklch */ color: oklch(71.5% 0.117 227.5);
Tailwind
colors: {
  custom: {
    50: '#88c8e7',
    500: '#40b1dc',
    950: '#000000',
  },
}
SCSS
$custom: #40b1dc;
$custom-light: #88c8e7;
$custom-dark: #000000;
JSON
{
  "hex": "#40b1dc",
  "rgb": {
    "r": 64,
    "g": 177,
    "b": 220
  },
  "hsl": {
    "h": 196.538,
    "s": 69.027,
    "l": 55.686
  },
  "oklch": {
    "l": 0.71485,
    "c": 0.11732,
    "h": 227.5
  },
  "luminance": 0.37702
}

Semantic roles & 50–950 ramp

primary
#40B1DC
secondary
#DCAD9B
accent
#6C3CEC
background
#F9FCFE
surface
#F1F8FC
border
#CBD1D5
text
#0D1316
muted
#7E8284

Preview Lab

Preview with #40B1DC

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

Preview Lab → · Contrast checker → · Palette generator →

#40B1DC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva