#78DCBC
Closest named color: Seafoam Blue (#78D1B6). oklch(82.5% 0.106 170.7), rgb(120, 220, 188).
Aa
Black text reads best on this color (12.76:1).
About this color
#78DCBC is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.106 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Seafoam Blue (#78D1B6), ΔE 0.029 away. Black text reads best on it, at 12.76:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Seafoam Blue (#78D1B6) |
| Black text | 12.76:1 |
| White text | 1.64:1 |
Values
| HEX | #78DCBC |
| RGB | rgb(120, 220, 188) |
| HSL | hsl(161, 59%, 67%) |
| OKLCH | oklch(82.5% 0.106 170.7) |
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 #78DCBC | 1.64:1 | Fails | Lc -32.1 | Non-text elements, placeholder text |
| Black text on #78DCBC | 12.76:1 | AAA | Lc 75.4 | Fine for body text |
| #78DCBC text on white | 1.64:1 | Fails | Lc 28.4 | Dividers and decoration only |
| #78DCBC text on black | 12.76:1 | AAA | Lc -74.5 | 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
#EDF9F4
oklch(97.2% 0.014 169.3)
-
Step 100
100
#D7F1E7
oklch(93.6% 0.03 170.6)
-
Step 200
200
#B3E6D4
oklch(88.4% 0.058 171.3)
-
Step 300
300 (this color)
#78DCBC
oklch(82.5% 0.106 170.7)
-
Step 400
400
#00BC94
oklch(70.8% 0.139 170.4)
-
Step 500
500
#00A17F
oklch(63.1% 0.124 170.8)
-
Step 600
600
#00876A
oklch(55.5% 0.109 170.8)
-
Step 700
700
#007259
oklch(49.1% 0.097 170.7)
-
Step 800
800
#005D48
oklch(42.6% 0.084 170.6)
-
Step 900
900
#004E3C
oklch(37.7% 0.074 170.6)
-
Step 950
950
#002F23
oklch(27.2% 0.053 170.5)
#78DCBC 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) | #D7D0BA | 0.109 |
| Deuteranopia (no green cones) | #C7C5BE | 0.104 |
| Tritanopia (no blue cones) | #55DDD3 | 0.036 |
| Achromatopsia (no color) | #CACACA | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78DCBC
#78DCBC
oklch(82.5% 0.106 170.7)
- #FBA9CE
#FBA9CE
oklch(82.5% 0.106 351)
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 #78DCBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seafoam Blue #78D1B6 ΔE 0.029
- Light Teal #90E4C1 ΔE 0.033
- Tiffany Blue #94D2BD ΔE 0.037
- Turquoise #40E0D0 ΔE 0.039
- Pale Teal #82CBB2 ΔE 0.045
- Medium Aquamarine #66CDAA ΔE 0.048
- Aqua Marine #2EE8BB ΔE 0.050
- Hospital Green #9BE5AA ΔE 0.051
Use #78DCBC 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.