#78D8BF
Closest named color: Seafoam Blue (#78D1B6). oklch(81.6% 0.099 174.9), rgb(120, 216, 191).
Aa
Black text reads best on this color (12.37:1).
About this color
#78D8BF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.099 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Seafoam Blue (#78D1B6), ΔE 0.020 away. Black text reads best on it, at 12.37:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Seafoam Blue (#78D1B6) |
| Black text | 12.37:1 |
| White text | 1.69:1 |
Values
| HEX | #78D8BF |
| RGB | rgb(120, 216, 191) |
| HSL | hsl(164, 55%, 66%) |
| OKLCH | oklch(81.6% 0.099 174.9) |
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 #78D8BF | 1.69:1 | Fails | Lc -33.9 | Non-text elements, placeholder text |
| Black text on #78D8BF | 12.37:1 | AAA | Lc 73.7 | Content text, not long reading |
| #78D8BF text on white | 1.69:1 | Fails | Lc 30.1 | Non-text elements, placeholder text |
| #78D8BF text on black | 12.37:1 | AAA | Lc -72.7 | 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
#EDF9F5
oklch(97.2% 0.014 174.2)
-
Step 100
100
#D7F1E9
oklch(93.7% 0.029 175.2)
-
Step 200
200
#B4E6D7
oklch(88.6% 0.055 174.7)
-
Step 300
300 (this color)
#78D8BF
oklch(81.6% 0.099 174.9)
-
Step 400
400
#00BB9C
oklch(70.7% 0.133 175.1)
-
Step 500
500
#00A085
oklch(63% 0.119 175)
-
Step 600
600
#008770
oklch(55.7% 0.105 175.1)
-
Step 700
700
#00715E
oklch(49% 0.092 175.6)
-
Step 800
800
#005D4C
oklch(42.7% 0.081 174.6)
-
Step 900
900
#004E3F
oklch(37.8% 0.072 174.1)
-
Step 950
950
#002E25
oklch(26.9% 0.05 175.6)
#78D8BF 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) | #D2CDBE | 0.104 |
| Deuteranopia (no green cones) | #C2C2C1 | 0.098 |
| Tritanopia (no blue cones) | #55DAD0 | 0.030 |
| Achromatopsia (no color) | #C7C7C7 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78D8BF
#78D8BF
oklch(81.6% 0.099 174.9)
- #F6A8C6
#F6A8C6
oklch(81.5% 0.099 354.8)
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 #78D8BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seafoam Blue #78D1B6 ΔE 0.020
- Tiffany Blue #94D2BD ΔE 0.029
- Pale Teal #82CBB2 ΔE 0.034
- Turquoise #40E0D0 ΔE 0.038
- Medium Aquamarine #66CDAA ΔE 0.042
- Light Teal #90E4C1 ΔE 0.042
- Medium Turquoise #48D1CC ΔE 0.046
- Aqua Marine #2EE8BB ΔE 0.059
Use #78D8BF 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.