#81C8DB
Closest named color: Sky Blue (#87CEEB). oklch(79.3% 0.076 216.6), rgb(129, 200, 219).
Aa
Black text reads best on this color (11.21:1).
About this color
#81C8DB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 79%, its chroma 0.076 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.026 away. Black text reads best on it, at 11.21:1.
| Hue family | Teals and cyans |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 11.21:1 |
| White text | 1.87:1 |
Values
| HEX | #81C8DB |
| RGB | rgb(129, 200, 219) |
| HSL | hsl(193, 56%, 68%) |
| OKLCH | oklch(79.3% 0.076 216.6) |
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 #81C8DB | 1.87:1 | Fails | Lc -39.5 | Non-text elements, placeholder text |
| Black text on #81C8DB | 11.21:1 | AAA | Lc 68.6 | Content text, not long reading |
| #81C8DB text on white | 1.87:1 | Fails | Lc 35.3 | Non-text elements, placeholder text |
| #81C8DB text on black | 11.21:1 | AAA | Lc -67.2 | 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
#EEF7FA
oklch(97% 0.01 219.6)
-
Step 100
100
#DAEEF3
oklch(93.6% 0.022 214.4)
-
Step 200
200
#BBE1EB
oklch(88.6% 0.042 215.5)
-
Step 300
300 (this color)
#81C8DB
oklch(79.3% 0.076 216.6)
-
Step 400
400
#1CB3D1
oklch(70.8% 0.121 216.1)
-
Step 500
500
#0099B5
oklch(63% 0.112 216.9)
-
Step 600
600
#008199
oklch(55.6% 0.099 216.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#81C8DB 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) | #BBC4DC | 0.068 |
| Deuteranopia (no green cones) | #ADB9DB | 0.061 |
| Tritanopia (no blue cones) | #5BCFCE | 0.045 |
| Achromatopsia (no color) | #BDBDBD | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81C8DB
#81C8DB
oklch(79.3% 0.076 216.6)
- #E7AB99
#E7AB99
oklch(79.3% 0.076 37.4)
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 #81C8DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.026
- Light Cornflower Blue #98C1D9 ΔE 0.029
- Lightblue #7BC8F6 ΔE 0.039
- Light Grey Blue #9DBCD4 ΔE 0.040
- Light Sky Blue #87CEFA ΔE 0.045
- Sky #82CAFC ΔE 0.047
- Vivid Sky Blue #4CC9F0 ΔE 0.048
- Cloudy Blue #ACC2D9 ΔE 0.049
Use #81C8DB 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.