#81DCF0
Closest named color: Sky Blue (#87CEEB). oklch(84.5% 0.091 213.4), rgb(129, 220, 240).
Aa
Black text reads best on this color (13.42:1).
About this color
#81DCF0 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 84%, its chroma 0.091 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.036 away. Black text reads best on it, at 13.42:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 13.42:1 |
| White text | 1.56:1 |
Values
| HEX | #81DCF0 |
| RGB | rgb(129, 220, 240) |
| HSL | hsl(191, 79%, 72%) |
| OKLCH | oklch(84.5% 0.091 213.4) |
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 #81DCF0 | 1.56:1 | Fails | Lc -29.0 | Dividers and decoration only |
| Black text on #81DCF0 | 13.42:1 | AAA | Lc 78.1 | Fine for body text |
| #81DCF0 text on white | 1.56:1 | Fails | Lc 25.6 | Dividers and decoration only |
| #81DCF0 text on black | 13.42:1 | AAA | Lc -77.4 | 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
#D7EFF5
oklch(93.6% 0.027 214.4)
-
Step 200
200
#B4E3ED
oklch(88.6% 0.05 212.1)
-
Step 300
300 (this color)
#81DCF0
oklch(84.5% 0.091 213.4)
-
Step 400
400
#00B4CF
oklch(70.8% 0.124 213.4)
-
Step 500
500
#009AB2
oklch(63.1% 0.111 213.9)
-
Step 600
600
#008296
oklch(55.7% 0.098 213.4)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800
#005968
oklch(42.7% 0.075 214.2)
-
Step 900
900
#004A57
oklch(37.6% 0.066 214.5)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#81DCF0 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) | #CDD6F1 | 0.084 |
| Deuteranopia (no green cones) | #BBC9F0 | 0.076 |
| Tritanopia (no blue cones) | #48E4E2 | 0.051 |
| Achromatopsia (no color) | #CFCFCF | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81DCF0
#81DCF0
oklch(84.5% 0.091 213.4)
- #FFB8A8
#FFB8A8
oklch(84.5% 0.086 33.1)
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 #81DCF0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.036
- Robin's Egg #6DEDFD ΔE 0.044
- Celeste #A8DADC ΔE 0.044
- Light Blue #ADD8E6 ΔE 0.044
- Light Sky Blue #87CEFA ΔE 0.045
- Powder Blue #B0E0E6 ΔE 0.052
- Baby Blue #A2CFFE ΔE 0.055
- Sky #82CAFC ΔE 0.057
Use #81DCF0 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.