#81D4EA
Closest named color: Sky Blue (#87CEEB). oklch(82.5% 0.086 216.6), rgb(129, 212, 234).
Aa
Black text reads best on this color (12.53:1).
About this color
#81D4EA is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.086 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.017 away. Black text reads best on it, at 12.53:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.53:1 |
| White text | 1.67:1 |
Values
| HEX | #81D4EA |
| RGB | rgb(129, 212, 234) |
| HSL | hsl(193, 71%, 71%) |
| OKLCH | oklch(82.5% 0.086 216.6) |
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 #81D4EA | 1.67:1 | Fails | Lc -33.2 | Non-text elements, placeholder text |
| Black text on #81D4EA | 12.53:1 | AAA | Lc 74.4 | Content text, not long reading |
| #81D4EA text on white | 1.67:1 | Fails | Lc 29.4 | Dividers and decoration only |
| #81D4EA text on black | 12.53:1 | AAA | Lc -73.4 | 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
#EDF8FA
oklch(97.1% 0.012 209.8)
-
Step 100
100
#D8EEF5
oklch(93.5% 0.025 218.8)
-
Step 200
200
#B6E2EE
oklch(88.6% 0.049 216.2)
-
Step 300
300 (this color)
#81D4EA
oklch(82.5% 0.086 216.6)
-
Step 400
400
#00B3D3
oklch(70.7% 0.126 216.7)
-
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
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#81D4EA 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) | #C5CFEB | 0.077 |
| Deuteranopia (no green cones) | #B5C3EA | 0.069 |
| Tritanopia (no blue cones) | #4FDCDB | 0.051 |
| Achromatopsia (no color) | #C8C8C8 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81D4EA
#81D4EA
oklch(82.5% 0.086 216.6)
- #F8B29E
#F8B29E
oklch(82.4% 0.087 36.6)
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 #81D4EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.017
- Light Sky Blue #87CEFA ΔE 0.033
- Lightblue #7BC8F6 ΔE 0.042
- Sky #82CAFC ΔE 0.043
- Light Blue #ADD8E6 ΔE 0.049
- Celeste #A8DADC ΔE 0.050
- Baby Blue #A2CFFE ΔE 0.050
- Light Cornflower Blue #98C1D9 ΔE 0.051
Use #81D4EA 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.