#81D8FA#81D8FA

#81D8FA is a very light, moderate cyan. Relative luminance 0.607; OKLCH L 84.0% C 0.096 H 225.2°. Best body text is #000000 at 13.14:1 contrast (WCAG AA passes).

Color values

HEX	#81D8FA
RGB	rgb(129, 216, 250)
HSL	hsl(197, 92%, 74%)
HSV	hsv(197, 48%, 98%)
CMYK	cmyk(48.4%, 13.6%, 0%, 2%)
CIE-LAB	lab(82.20, -17.37, -24.73)
CIE-LCH	lch(82.20, 30.23, 234.92°)
OKLab	oklab(83.96% -0.0679 -0.0685)
OKLCH	oklch(83.96% 0.096 225.2)
XYZ	xyz(50.8581, 60.6769, 99.4557)
Luminance	0.6068 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81D8FA #FAA381

analogous

#81FAE0 #81D8FA #819CFA

triadic

#81D8FA #FA81D8 #D8FA81

tetradic

#81D8FA #E081FA #FAA381 #9CFA81

square

#81D8FA #E081FA #FAA381 #9CFA81

split-complementary

#81D8FA #FA819C #FAE081

monochromatic

#0BB4F5 #46C6F8 #81D8FA #BCEAFC #E2F6FE

Accessibility & contrast

On white

1.60

#81D8FA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.14

#81D8FA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81D8FA

13.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81D8FA	#FFFFFF	#000000	##000000
##81D8FA	1.00	1.60	13.14	13.14
#FFFFFF	1.60	1.00	21.00	21.00
#000000	13.14	21.00	1.00	1.00
##000000	13.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5D4FC

Deuteranopia (green-blind)

#B4C7FA

Tritanopia (blue-blind)

#40E2E3

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #81d8fa;
/* rgb */ color: rgb(129, 216, 250);
/* oklch */ color: oklch(84.0% 0.096 225.2);

Tailwind

colors: {
  custom: {
    50: '#ace4fc',
    500: '#81d8fa',
    950: '#000000',
  },
}

SCSS

$custom: #81d8fa;
$custom-light: #ace4fc;
$custom-dark: #000000;

JSON

{
  "hex": "#81d8fa",
  "rgb": {
    "r": 129,
    "g": 216,
    "b": 250
  },
  "hsl": {
    "h": 196.86,
    "s": 92.366,
    "l": 74.314
  },
  "oklch": {
    "l": 0.8396,
    "c": 0.09646,
    "h": 225.2
  },
  "luminance": 0.60681
}

Semantic roles & 50–950 ramp

primary

#81D8FA

secondary

#D87048

accent

#4000E6

background

#FDFEFF

surface

#F8FCFF

border

#D1D5D7

text

#111517

muted

#818485

Preview Lab

Preview with #81D8FA

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

Preview Lab → · Contrast checker → · Palette generator →