#78BCD9
Closest named color: Light Cornflower Blue (#98C1D9). oklch(76.1% 0.08 227), rgb(120, 188, 217).
Aa
Black text reads best on this color (9.99:1).
About this color
#78BCD9 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 76%, its chroma 0.080 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Light Cornflower Blue (#98C1D9), ΔE 0.039 away. Black text reads best on it, at 9.99:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Light Cornflower Blue (#98C1D9) |
| Black text | 9.99:1 |
| White text | 2.10:1 |
Values
| HEX | #78BCD9 |
| RGB | rgb(120, 188, 217) |
| HSL | hsl(198, 56%, 66%) |
| OKLCH | oklch(76.1% 0.08 227) |
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 #78BCD9 | 2.10:1 | Fails | Lc -45.6 | Large or bold text, headings |
| Black text on #78BCD9 | 9.99:1 | AAA | Lc 62.9 | Content text, not long reading |
| #78BCD9 text on white | 2.10:1 | Fails | Lc 41.0 | Non-text elements, placeholder text |
| #78BCD9 text on black | 9.99:1 | AAA | Lc -61.2 | 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
#EEF7FB
oklch(97.1% 0.011 226)
-
Step 100
100
#DBEDF6
oklch(93.5% 0.023 229.1)
-
Step 200
200
#BBE0F0
oklch(88.5% 0.045 225.9)
-
Step 300
300 (this color)
#78BCD9
oklch(76.1% 0.08 227)
-
Step 400
400
#25B0DE
oklch(70.8% 0.128 226.6)
-
Step 500
500
#0097C2
oklch(63.1% 0.122 226.9)
-
Step 600
600
#007FA4
oklch(55.6% 0.108 227.1)
-
Step 700
700
#006B8A
oklch(49.2% 0.095 226.5)
-
Step 800
800
#005772
oklch(42.6% 0.083 227.6)
-
Step 900
900
#00495F
oklch(37.8% 0.072 226.2)
-
Step 950
950
#002B3A
oklch(27% 0.052 227.2)
#78BCD9 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) | #ADB9DB | 0.062 |
| Deuteranopia (no green cones) | #9EAED9 | 0.054 |
| Tritanopia (no blue cones) | #4CC5C5 | 0.057 |
| Achromatopsia (no color) | #B3B3B3 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78BCD9
#78BCD9
oklch(76.1% 0.08 227)
- #DDA285
#DDA285
oklch(76.1% 0.081 47.2)
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 #78BCD9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Cornflower Blue #98C1D9 ΔE 0.039
- Light Grey Blue #9DBCD4 ΔE 0.041
- Lightblue #7BC8F6 ΔE 0.047
- Vivid Sky Blue #4CC9F0 ΔE 0.047
- Sky Blue #87CEEB ΔE 0.054
- Sky #82CAFC ΔE 0.058
- Carolina Blue #8AB8FE ΔE 0.063
- Light Sky Blue #87CEFA ΔE 0.064
Use #78BCD9 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.