#81ACE8#81ACE8

#81ACE8 is a light, moderate cyan. Relative luminance 0.400; OKLCH L 73.7% C 0.099 H 256.8°. Best body text is #000000 at 9.00:1 contrast (WCAG AA passes).

Color values

HEX#81ACE8
RGBrgb(129, 172, 232)
HSLhsl(215, 69%, 71%)
HSVhsv(215, 44%, 91%)
CMYKcmyk(44.4%, 25.9%, 0%, 9%)
CIE-LABlab(69.47, 1.13, -34.63)
CIE-LCHlch(69.47, 34.64, 271.87°)
OKLaboklab(73.67% -0.0226 -0.0966)
OKLCHoklch(73.67% 0.099 256.8)
XYZxyz(38.3665, 39.9960, 82.0266)
Luminance0.4000 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#81ACE8 #E8BD81
analogous
#81E0E8 #81ACE8 #8981E8
triadic
#81ACE8 #E881AC #ACE881
tetradic
#81ACE8 #E881E0 #E8BD81 #81E889
square
#81ACE8 #E881E0 #E8BD81 #81E889
split-complementary
#81ACE8 #E88981 #E0E881
monochromatic
#256ACA #4D8ADF #81ACE8 #B5CEF1 #E5EEFA

Accessibility & contrast

On white

2.33
#81ACE8 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.00
#81ACE8 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81ACE8
9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##81ACE8#FFFFFF#000000##000000
##81ACE81.002.339.009.00
#FFFFFF2.331.0021.0021.00
#0000009.0021.001.001.00
##0000009.0021.001.001.00

Color blindness preview

Protanopia (red-blind)
#95AFEB
Deuteranopia (green-blind)
#89A5E7
Tritanopia (blue-blind)
#59B9C1
Achromatopsia (no color)
#AAAAAA

Design tokens & code

CSS
--color: #81ace8;
/* rgb */ color: rgb(129, 172, 232);
/* oklch */ color: oklch(73.7% 0.099 256.8);
Tailwind
colors: {
  custom: {
    50: '#aac4ef',
    500: '#81ace8',
    950: '#000000',
  },
}
SCSS
$custom: #81ace8;
$custom-light: #aac4ef;
$custom-dark: #000000;
JSON
{
  "hex": "#81ace8",
  "rgb": {
    "r": 129,
    "g": 172,
    "b": 232
  },
  "hsl": {
    "h": 214.951,
    "s": 69.128,
    "l": 70.784
  },
  "oklch": {
    "l": 0.73674,
    "c": 0.09924,
    "h": 256.8
  },
  "luminance": 0.39998
}

Semantic roles & 50–950 ramp

primary
#81ACE8
secondary
#F0E5D5
accent
#8214D1
background
#FAFCFE
surface
#F4F8FD
border
#CED1D5
text
#101216
muted
#7F8184

Preview Lab

Preview with #81ACE8

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

Preview Lab → · Contrast checker → · Palette generator →

#81ACE8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva