#81D8DF
Closest named color: Sky Blue (#87CEEB). oklch(83% 0.085 202.3), rgb(129, 216, 223).
Aa
Black text reads best on this color (12.82:1).
About this color
#81D8DF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.085 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.037 away. Black text reads best on it, at 12.82:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.82:1 |
| White text | 1.63:1 |
Values
| HEX | #81D8DF |
| RGB | rgb(129, 216, 223) |
| HSL | hsl(184, 59%, 69%) |
| OKLCH | oklch(83% 0.085 202.3) |
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 #81D8DF | 1.63:1 | Fails | Lc -31.8 | Non-text elements, placeholder text |
| Black text on #81D8DF | 12.82:1 | AAA | Lc 75.6 | Fine for body text |
| #81D8DF text on white | 1.63:1 | Fails | Lc 28.2 | Dividers and decoration only |
| #81D8DF text on black | 12.82:1 | AAA | Lc -74.7 | 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
#EDF8F9
oklch(97.1% 0.012 203.5)
-
Step 100
100
#D8EFF1
oklch(93.6% 0.024 203.1)
-
Step 200
200
#B6E3E6
oklch(88.5% 0.047 201.4)
-
Step 300
300 (this color)
#81D8DF
oklch(83% 0.085 202.3)
-
Step 400
400
#00B6C1
oklch(70.7% 0.12 202.5)
-
Step 500
500
#009CA5
oklch(63.1% 0.107 202)
-
Step 600
600
#00838B
oklch(55.5% 0.095 202.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#81D8DF 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) | #CCD1E0 | 0.085 |
| Deuteranopia (no green cones) | #BCC5E0 | 0.079 |
| Tritanopia (no blue cones) | #55DEDA | 0.037 |
| Achromatopsia (no color) | #CACACA | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81D8DF
#81D8DF
oklch(83% 0.085 202.3)
- #FAB2AE
#FAB2AE
oklch(83% 0.085 22.6)
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 #81D8DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.037
- Celeste #A8DADC ΔE 0.041
- Tiffany Blue #94D2BD ΔE 0.046
- Light Blue #ADD8E6 ΔE 0.048
- Light Sky Blue #87CEFA ΔE 0.055
- Turquoise #40E0D0 ΔE 0.056
- Medium Turquoise #48D1CC ΔE 0.057
- Powder Blue #B0E0E6 ΔE 0.057
Use #81D8DF 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.