#78D4DC
Closest named color: Sky Blue (#87CEEB). oklch(81.6% 0.089 202.9), rgb(120, 212, 220).
Aa
Black text reads best on this color (12.24:1).
About this color
#78D4DC is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.089 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.034 away. Black text reads best on it, at 12.24:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.24:1 |
| White text | 1.71:1 |
Values
| HEX | #78D4DC |
| RGB | rgb(120, 212, 220) |
| HSL | hsl(185, 59%, 67%) |
| OKLCH | oklch(81.6% 0.089 202.9) |
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 #78D4DC | 1.71:1 | Fails | Lc -34.5 | Non-text elements, placeholder text |
| Black text on #78D4DC | 12.24:1 | AAA | Lc 73.2 | Content text, not long reading |
| #78D4DC text on white | 1.71:1 | Fails | Lc 30.7 | Non-text elements, placeholder text |
| #78D4DC text on black | 12.24:1 | AAA | Lc -72.1 | 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
#EDF8F9
oklch(97.1% 0.012 203.5)
-
Step 100
100
#D7EFF1
oklch(93.5% 0.025 202.8)
-
Step 200
200
#B4E3E7
oklch(88.4% 0.049 202.8)
-
Step 300
300 (this color)
#78D4DC
oklch(81.6% 0.089 202.9)
-
Step 400
400
#00B6C2
oklch(70.7% 0.12 203.2)
-
Step 500
500
#009CA6
oklch(63.1% 0.107 202.8)
-
Step 600
600
#00838C
oklch(55.6% 0.095 203.3)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#78D4DC 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) | #C8CDDD | 0.090 |
| Deuteranopia (no green cones) | #B7C0DD | 0.083 |
| Tritanopia (no blue cones) | #44DAD6 | 0.040 |
| Achromatopsia (no color) | #C6C6C6 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78D4DC
#78D4DC
oklch(81.6% 0.089 202.9)
- #F7ACA8
#F7ACA8
oklch(81.5% 0.089 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 #78D4DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.034
- Medium Turquoise #48D1CC ΔE 0.045
- Tiffany Blue #94D2BD ΔE 0.047
- Aqua Blue #02D8E9 ΔE 0.050
- Seafoam Blue #78D1B6 ΔE 0.052
- Celeste #A8DADC ΔE 0.053
- Light Sky Blue #87CEFA ΔE 0.054
- Turquoise #40E0D0 ΔE 0.054
Use #78D4DC 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.