#81D9E7
Closest named color: Sky Blue (#87CEEB). oklch(83.5% 0.087 208.7), rgb(129, 217, 231).
Aa
Black text reads best on this color (13.01:1).
About this color
#81D9E7 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.087 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.033 away. Black text reads best on it, at 13.01:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 13.01:1 |
| White text | 1.61:1 |
Values
| HEX | #81D9E7 |
| RGB | rgb(129, 217, 231) |
| HSL | hsl(188, 68%, 71%) |
| OKLCH | oklch(83.5% 0.087 208.7) |
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 #81D9E7 | 1.61:1 | Fails | Lc -30.9 | Non-text elements, placeholder text |
| Black text on #81D9E7 | 13.01:1 | AAA | Lc 76.4 | Fine for body text |
| #81D9E7 text on white | 1.61:1 | Fails | Lc 27.4 | Dividers and decoration only |
| #81D9E7 text on black | 13.01:1 | AAA | Lc -75.5 | 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
#D8EFF3
oklch(93.6% 0.025 209.3)
-
Step 200
200
#B5E3EA
oklch(88.6% 0.048 207.7)
-
Step 300
300 (this color)
#81D9E7
oklch(83.5% 0.087 208.7)
-
Step 400
400
#00B5C9
oklch(70.8% 0.122 208.7)
-
Step 500
500
#009BAC
oklch(63.1% 0.109 208.4)
-
Step 600
600
#008291
oklch(55.5% 0.096 208.9)
-
Step 700
700
#006E7A
oklch(49.2% 0.085 207.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#002C32
oklch(26.8% 0.046 208.8)
#81D9E7 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) | #CBD3E8 | 0.083 |
| Deuteranopia (no green cones) | #BBC6E7 | 0.077 |
| Tritanopia (no blue cones) | #50E0DD | 0.044 |
| Achromatopsia (no color) | #CCCCCC | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81D9E7
#81D9E7
oklch(83.5% 0.087 208.7)
- #FDB4A9
#FDB4A9
oklch(83.6% 0.087 28.6)
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 #81D9E7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.033
- Celeste #A8DADC ΔE 0.042
- Light Blue #ADD8E6 ΔE 0.045
- Light Sky Blue #87CEFA ΔE 0.047
- Robin's Egg #6DEDFD ΔE 0.053
- Powder Blue #B0E0E6 ΔE 0.055
- Tiffany Blue #94D2BD ΔE 0.056
- Lightblue #7BC8F6 ΔE 0.058
Use #81D9E7 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.