#81C8EF
Closest named color: Lightblue (#7BC8F6). oklch(80% 0.09 233.5), rgb(129, 200, 239).
Aa
Black text reads best on this color (11.44:1).
About this color
#81C8EF is a light, moderately saturated blue. In OKLCH its lightness is 80%, its chroma 0.090 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Lightblue (#7BC8F6), ΔE 0.011 away. Black text reads best on it, at 11.44:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Lightblue (#7BC8F6) |
| Black text | 11.44:1 |
| White text | 1.83:1 |
Values
| HEX | #81C8EF |
| RGB | rgb(129, 200, 239) |
| HSL | hsl(201, 77%, 72%) |
| OKLCH | oklch(80% 0.09 233.5) |
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 #81C8EF | 1.83:1 | Fails | Lc -38.4 | Non-text elements, placeholder text |
| Black text on #81C8EF | 11.44:1 | AAA | Lc 69.6 | Content text, not long reading |
| #81C8EF text on white | 1.83:1 | Fails | Lc 34.3 | Non-text elements, placeholder text |
| #81C8EF text on black | 11.44:1 | AAA | Lc -68.3 | 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
#EEF7FC
oklch(97.1% 0.012 231.7)
-
Step 100
100
#DAEDF9
oklch(93.6% 0.026 235.4)
-
Step 200
200
#BADFF5
oklch(88.4% 0.049 234.2)
-
Step 300
300 (this color)
#81C8EF
oklch(80% 0.09 233.5)
-
Step 400
400
#11AEEC
oklch(70.7% 0.145 233.6)
-
Step 500
500
#0095CC
oklch(63.1% 0.132 233.7)
-
Step 600
600
#007DAC
oklch(55.5% 0.116 233.8)
-
Step 700
700
#006991
oklch(49% 0.102 233.6)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#004864
oklch(37.8% 0.078 232.8)
-
Step 950
950
#002A3D
oklch(26.9% 0.056 233.8)
#81C8EF 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) | #B5C6F1 | 0.059 |
| Deuteranopia (no green cones) | #A6BAEE | 0.052 |
| Tritanopia (no blue cones) | #4ED2D5 | 0.067 |
| Achromatopsia (no color) | #BFBFBF | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81C8EF
#81C8EF
oklch(80% 0.09 233.5)
- #ECAE87
#ECAE87
oklch(80% 0.09 53.2)
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 #81C8EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lightblue #7BC8F6 ΔE 0.011
- Sky #82CAFC ΔE 0.018
- Sky Blue #87CEEB ΔE 0.020
- Light Sky Blue #87CEFA ΔE 0.022
- Light Cornflower Blue #98C1D9 ΔE 0.036
- Vivid Sky Blue #4CC9F0 ΔE 0.041
- Baby Blue #A2CFFE ΔE 0.047
- Light Grey Blue #9DBCD4 ΔE 0.047
Use #81C8EF 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.