#81D8EA
Closest named color: Sky Blue (#87CEEB). oklch(83.4% 0.088 212.4), rgb(129, 216, 234).
Aa
Black text reads best on this color (12.94:1).
About this color
#81D8EA is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.088 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.028 away. Black text reads best on it, at 12.94:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.94:1 |
| White text | 1.62:1 |
Values
| HEX | #81D8EA |
| RGB | rgb(129, 216, 234) |
| HSL | hsl(190, 71%, 71%) |
| OKLCH | oklch(83.4% 0.088 212.4) |
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 #81D8EA | 1.62:1 | Fails | Lc -31.3 | Non-text elements, placeholder text |
| Black text on #81D8EA | 12.94:1 | AAA | Lc 76.1 | Fine for body text |
| #81D8EA text on white | 1.62:1 | Fails | Lc 27.7 | Dividers and decoration only |
| #81D8EA text on black | 12.94:1 | AAA | Lc -75.2 | Fine for body text |
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
#D8EFF4
oklch(93.7% 0.025 212.2)
-
Step 200
200
#B5E2EC
oklch(88.4% 0.049 212.7)
-
Step 300
300 (this color)
#81D8EA
oklch(83.4% 0.088 212.4)
-
Step 400
400
#00B4CD
oklch(70.7% 0.123 212.1)
-
Step 500
500
#009AB0
oklch(63% 0.11 212.4)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#004A56
oklch(37.6% 0.066 213)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#81D8EA 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) | #CAD2EB | 0.082 |
| Deuteranopia (no green cones) | #B9C6EA | 0.074 |
| Tritanopia (no blue cones) | #4EE0DD | 0.049 |
| Achromatopsia (no color) | #CBCBCB | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81D8EA
#81D8EA
oklch(83.4% 0.088 212.4)
- #FCB4A5
#FCB4A5
oklch(83.4% 0.087 32.1)
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 #81D8EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.028
- Light Sky Blue #87CEFA ΔE 0.041
- Celeste #A8DADC ΔE 0.044
- Light Blue #ADD8E6 ΔE 0.045
- Sky #82CAFC ΔE 0.052
- Lightblue #7BC8F6 ΔE 0.053
- Robin's Egg #6DEDFD ΔE 0.055
- Baby Blue #A2CFFE ΔE 0.055
Use #81D8EA 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.