#81D4E4
Closest named color: Sky Blue (#87CEEB). oklch(82.3% 0.084 211.2), rgb(129, 212, 228).
Aa
Black text reads best on this color (12.47:1).
About this color
#81D4E4 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.084 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.022 away. Black text reads best on it, at 12.47:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.47:1 |
| White text | 1.68:1 |
Values
| HEX | #81D4E4 |
| RGB | rgb(129, 212, 228) |
| HSL | hsl(190, 65%, 70%) |
| OKLCH | oklch(82.3% 0.084 211.2) |
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 #81D4E4 | 1.68:1 | Fails | Lc -33.5 | Non-text elements, placeholder text |
| Black text on #81D4E4 | 12.47:1 | AAA | Lc 74.1 | Content text, not long reading |
| #81D4E4 text on white | 1.68:1 | Fails | Lc 29.7 | Dividers and decoration only |
| #81D4E4 text on black | 12.47:1 | AAA | Lc -73.1 | 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
#EDF8FA
oklch(97.1% 0.012 209.8)
-
Step 100
100
#D8EFF3
oklch(93.6% 0.025 209.3)
-
Step 200
200
#B7E2EB
oklch(88.5% 0.046 211.8)
-
Step 300
300 (this color)
#81D4E4
oklch(82.3% 0.084 211.2)
-
Step 400
400
#00B4CC
oklch(70.6% 0.123 211.4)
-
Step 500
500
#009BAF
oklch(63.2% 0.11 210.8)
-
Step 600
600
#008293
oklch(55.6% 0.096 210.7)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800
#005966
oklch(42.6% 0.074 211.8)
-
Step 900
900
#004B55
oklch(37.8% 0.065 210)
-
Step 950
950
#002C33
oklch(26.9% 0.047 211.1)
#81D4E4 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) | #C6CEE5 | 0.078 |
| Deuteranopia (no green cones) | #B6C2E4 | 0.072 |
| Tritanopia (no blue cones) | #53DBD9 | 0.045 |
| Achromatopsia (no color) | #C7C7C7 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81D4E4
#81D4E4
oklch(82.3% 0.084 211.2)
- #F6B1A4
#F6B1A4
oklch(82.2% 0.083 30.9)
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 #81D4E4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.022
- Light Sky Blue #87CEFA ΔE 0.041
- Celeste #A8DADC ΔE 0.047
- Lightblue #7BC8F6 ΔE 0.049
- Light Blue #ADD8E6 ΔE 0.049
- Sky #82CAFC ΔE 0.050
- Light Cornflower Blue #98C1D9 ΔE 0.051
- Tiffany Blue #94D2BD ΔE 0.054
Use #81D4E4 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.