#40BDDE#40BDDE

#40BDDE is a light, moderate cyan. Relative luminance 0.428; OKLCH L 74.4% C 0.117 H 219.3°. Best body text is #000000 at 9.55:1 contrast (WCAG AA passes).

Color values

HEX#40BDDE
RGBrgb(64, 189, 222)
HSLhsl(193, 71%, 56%)
HSVhsv(193, 71%, 87%)
CMYKcmyk(71.2%, 14.9%, 0%, 12.9%)
CIE-LABlab(71.39, -23.52, -26.41)
CIE-LCHlch(71.39, 35.37, 228.32°)
OKLaboklab(74.39% -0.0902 -0.0737)
OKLCHoklch(74.39% 0.117 219.3)
XYZxyz(33.4913, 42.7552, 75.5806)
Luminance0.4276 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40BDDE #DE6140
analogous
#40DEB0 #40BDDE #406EDE
triadic
#40BDDE #DE40BD #BDDE40
tetradic
#40BDDE #B040DE #DE6140 #6EDE40
square
#40BDDE #B040DE #DE6140 #6EDE40
split-complementary
#40BDDE #DE406E #DEB040
monochromatic
#18738B #219FC0 #40BDDE #74CFE7 #A8E1F0

Accessibility & contrast

On white

2.20
#40BDDE on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.55
#40BDDE on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BDDE
9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40BDDE#FFFFFF#000000##000000
##40BDDE1.002.209.559.55
#FFFFFF2.201.0021.0021.00
#0000009.5521.001.001.00
##0000009.5521.001.001.00

Color blindness preview

Protanopia (red-blind)
#A8B8E0
Deuteranopia (green-blind)
#93A8DE
Tritanopia (blue-blind)
#00C8C7
Achromatopsia (no color)
#AFAFAF

Design tokens & code

CSS
--color: #40bdde;
/* rgb */ color: rgb(64, 189, 222);
/* oklch */ color: oklch(74.4% 0.117 219.3);
Tailwind
colors: {
  custom: {
    50: '#89d1e8',
    500: '#40bdde',
    950: '#000000',
  },
}
SCSS
$custom: #40bdde;
$custom-light: #89d1e8;
$custom-dark: #000000;
JSON
{
  "hex": "#40bdde",
  "rgb": {
    "r": 64,
    "g": 189,
    "b": 222
  },
  "hsl": {
    "h": 192.532,
    "s": 70.536,
    "l": 56.078
  },
  "oklch": {
    "l": 0.74387,
    "c": 0.11655,
    "h": 219.3
  },
  "luminance": 0.42759
}

Semantic roles & 50–950 ramp

primary
#40BDDE
secondary
#DEAA9C
accent
#603AED
background
#F9FCFE
surface
#F1F9FC
border
#CBD2D5
text
#0D1416
muted
#7E8284

Preview Lab

Preview with #40BDDE

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

Preview Lab → · Contrast checker → · Palette generator →

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