#81CCFF
Closest named color: Sky (#82CAFC). oklch(81.5% 0.104 239.5), rgb(129, 204, 255).
Aa
Black text reads best on this color (12.01:1).
About this color
#81CCFF is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.104 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Sky (#82CAFC), ΔE 0.006 away. Black text reads best on it, at 12.01:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Sky (#82CAFC) |
| Black text | 12.01:1 |
| White text | 1.74:1 |
Values
| HEX | #81CCFF |
| RGB | rgb(129, 204, 255) |
| HSL | hsl(204, 100%, 75%) |
| OKLCH | oklch(81.5% 0.104 239.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #81CCFF | 1.74:1 | Fails | Lc -35.6 | Non-text elements, placeholder text |
| Black text on #81CCFF | 12.01:1 | AAA | Lc 72.1 | Content text, not long reading |
| #81CCFF text on white | 1.74:1 | Fails | Lc 31.7 | Non-text elements, placeholder text |
| #81CCFF text on black | 12.01:1 | AAA | Lc -71.0 | Content text, not long reading |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 300.
-
Step 50
50
#EDF7FE
oklch(97.1% 0.014 238)
-
Step 100
100
#D9EDFC
oklch(93.6% 0.029 240.2)
-
Step 200
200
#B7DFFC
oklch(88.5% 0.058 239.8)
-
Step 300
300 (this color)
#81CCFF
oklch(81.5% 0.104 239.5)
-
Step 400
400
#00ABF9
oklch(70.6% 0.161 239.7)
-
Step 500
500
#0093D6
oklch(63.1% 0.143 239.3)
-
Step 600
600
#007BB5
oklch(55.6% 0.127 239.8)
-
Step 700
700
#006799
oklch(49% 0.112 240)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#00466A
oklch(37.6% 0.086 240.1)
-
Step 950
950
#002A41
oklch(27.1% 0.061 239)
#81CCFF with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #B5CBFF | 0.058 |
| Deuteranopia (no green cones) | #A4BEFE | 0.049 |
| Tritanopia (no blue cones) | #40D9DD | 0.084 |
| Achromatopsia (no color) | #C4C4C4 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81CCFF
#81CCFF
oklch(81.5% 0.104 239.5)
- #F5B27D
#F5B27D
oklch(81.5% 0.104 59)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #81CCFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky #82CAFC ΔE 0.006
- Light Sky Blue #87CEFA ΔE 0.012
- Lightblue #7BC8F6 ΔE 0.017
- Sky Blue #87CEEB ΔE 0.031
- Baby Blue #A2CFFE ΔE 0.037
- Pastel Blue #A2BFFE ΔE 0.046
- Vivid Sky Blue #4CC9F0 ΔE 0.050
- Carolina Blue #8AB8FE ΔE 0.053
Use #81CCFF in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.