#81C6FB
Closest named color: Sky (#82CAFC). oklch(80.1% 0.103 242.7), rgb(129, 198, 251).
Aa
Black text reads best on this color (11.40:1).
About this color
#81C6FB is a light, moderately saturated blue. In OKLCH its lightness is 80%, its chroma 0.103 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Sky (#82CAFC), ΔE 0.011 away. Black text reads best on it, at 11.40:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Sky (#82CAFC) |
| Black text | 11.40:1 |
| White text | 1.84:1 |
Values
| HEX | #81C6FB |
| RGB | rgb(129, 198, 251) |
| HSL | hsl(206, 94%, 75%) |
| OKLCH | oklch(80.1% 0.103 242.7) |
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 #81C6FB | 1.84:1 | Fails | Lc -38.6 | Non-text elements, placeholder text |
| Black text on #81C6FB | 11.40:1 | AAA | Lc 69.4 | Content text, not long reading |
| #81C6FB text on white | 1.84:1 | Fails | Lc 34.5 | Non-text elements, placeholder text |
| #81C6FB text on black | 11.40:1 | AAA | Lc -68.1 | 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
#EEF7FE
oklch(97.1% 0.013 241)
-
Step 100
100
#D9EDFD
oklch(93.6% 0.03 242)
-
Step 200
200
#B9DEFC
oklch(88.4% 0.057 242.8)
-
Step 300
300 (this color)
#81C6FB
oklch(80.1% 0.103 242.7)
-
Step 400
400
#19AAFE
oklch(70.8% 0.165 242.6)
-
Step 500
500
#0091DD
oklch(63.1% 0.152 242.9)
-
Step 600
600
#007ABA
oklch(55.6% 0.133 242.5)
-
Step 700
700
#00669D
oklch(49% 0.118 242.7)
-
Step 800
800
#005482
oklch(42.8% 0.102 242.4)
-
Step 900
900
#00466D
oklch(37.8% 0.09 242.2)
-
Step 950
950
#002943
oklch(27% 0.065 242.6)
#81C6FB 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) | #AFC6FE | 0.052 |
| Deuteranopia (no green cones) | #9FB9FA | 0.044 |
| Tritanopia (no blue cones) | #45D3D8 | 0.085 |
| Achromatopsia (no color) | #BFBFBF | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81C6FB
#81C6FB
oklch(80.1% 0.103 242.7)
- #EEAF77
#EEAF77
oklch(80.1% 0.103 62.2)
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 #81C6FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky #82CAFC ΔE 0.011
- Lightblue #7BC8F6 ΔE 0.012
- Light Sky Blue #87CEFA ΔE 0.024
- Sky Blue #87CEEB ΔE 0.037
- Carolina Blue #8AB8FE ΔE 0.039
- Pastel Blue #A2BFFE ΔE 0.040
- Baby Blue #A2CFFE ΔE 0.045
- Vivid Sky Blue #4CC9F0 ΔE 0.047
Use #81C6FB 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.