#81DDFB#81DDFB

#81DDFB is a very light, moderate cyan. Relative luminance 0.633; OKLCH L 85.1% C 0.097 H 221.1°. Best body text is #000000 at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#81DDFB
RGB	rgb(129, 221, 251)
HSL	hsl(195, 94%, 75%)
HSV	hsv(195, 49%, 98%)
CMYK	cmyk(48.6%, 12%, 0%, 1.6%)
CIE-LAB	lab(83.62, -19.64, -23.11)
CIE-LCH	lch(83.62, 30.33, 229.64°)
OKLab	oklab(85.1% -0.0732 -0.0639)
OKLCH	oklch(85.1% 0.097 221.1)
XYZ	xyz(52.3158, 63.3408, 100.7172)
Luminance	0.6334 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81DDFB #FB9F81

analogous

#81FBDC #81DDFB #81A0FB

triadic

#81DDFB #FB81DD #DDFB81

tetradic

#81DDFB #DC81FB #FB9F81 #A0FB81

square

#81DDFB #DC81FB #FB9F81 #A0FB81

split-complementary

#81DDFB #FB81A0 #FBDC81

monochromatic

#0ABDF7 #46CDF9 #81DDFB #BCEDFD #E1F7FE

Accessibility & contrast

On white

1.54

#81DDFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.67

#81DDFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81DDFB

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81DDFB	#FFFFFF	#000000	##000000
##81DDFB	1.00	1.54	13.67	13.67
#FFFFFF	1.54	1.00	21.00	21.00
#000000	13.67	21.00	1.00	1.00
##000000	13.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CBD8FD

Deuteranopia (green-blind)

#B9CAFB

Tritanopia (blue-blind)

#3EE7E6

Achromatopsia (no color)

#D0D0D0

Design tokens & code

CSS

--color: #81ddfb;
/* rgb */ color: rgb(129, 221, 251);
/* oklch */ color: oklch(85.1% 0.097 221.1);

Tailwind

colors: {
  custom: {
    50: '#ace7fc',
    500: '#81ddfb',
    950: '#000000',
  },
}

SCSS

$custom: #81ddfb;
$custom-light: #ace7fc;
$custom-dark: #000000;

JSON

{
  "hex": "#81ddfb",
  "rgb": {
    "r": 129,
    "g": 221,
    "b": 251
  },
  "hsl": {
    "h": 194.754,
    "s": 93.846,
    "l": 74.51
  },
  "oklch": {
    "l": 0.851,
    "c": 0.09716,
    "h": 221.1
  },
  "luminance": 0.63345
}

Semantic roles & 50–950 ramp

primary

#81DDFB

secondary

#D96B47

accent

#3800E6

background

#FDFEFF

surface

#F8FCFF

border

#D1D5D7

text

#111617

muted

#818485

Preview Lab

Preview with #81DDFB

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

Preview Lab → · Contrast checker → · Palette generator →