#78BFEF
Closest named color: Lightblue (#7BC8F6). oklch(77.6% 0.099 239.4), rgb(120, 191, 239).
Aa
Black text reads best on this color (10.49:1).
About this color
#78BFEF is a medium-light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.099 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Lightblue (#7BC8F6), ΔE 0.025 away. Black text reads best on it, at 10.49:1.
| Hue family | Blues |
| Lightness | medium-light (78%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Lightblue (#7BC8F6) |
| Black text | 10.49:1 |
| White text | 2.00:1 |
Values
| HEX | #78BFEF |
| RGB | rgb(120, 191, 239) |
| HSL | hsl(204, 79%, 70%) |
| OKLCH | oklch(77.6% 0.099 239.4) |
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 #78BFEF | 2.00:1 | Fails | Lc -43.1 | Non-text elements, placeholder text |
| Black text on #78BFEF | 10.49:1 | AAA | Lc 65.3 | Content text, not long reading |
| #78BFEF text on white | 2.00:1 | Fails | Lc 38.6 | Non-text elements, placeholder text |
| #78BFEF text on black | 10.49:1 | AAA | Lc -63.8 | 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
#EEF7FE
oklch(97.1% 0.013 241)
-
Step 100
100
#D9EDFB
oklch(93.6% 0.028 238.2)
-
Step 200
200
#B9DFFA
oklch(88.5% 0.055 239.2)
-
Step 300
300 (this color)
#78BFEF
oklch(77.6% 0.099 239.4)
-
Step 400
400
#09ABF8
oklch(70.6% 0.159 239.6)
-
Step 500
500
#0093D6
oklch(63.1% 0.143 239.3)
-
Step 600
600
#007BB5
oklch(55.6% 0.127 239.8)
-
Step 700
700
#006899
oklch(49.2% 0.111 239.3)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#00466A
oklch(37.6% 0.086 240.1)
-
Step 950
950
#002A41
oklch(27.1% 0.061 239)
#78BFEF 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) | #AABEF1 | 0.056 |
| Deuteranopia (no green cones) | #99B2EE | 0.047 |
| Tritanopia (no blue cones) | #39CBCF | 0.080 |
| Achromatopsia (no color) | #B7B7B7 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78BFEF
#78BFEF
oklch(77.6% 0.099 239.4)
- #E6A774
#E6A774
oklch(77.7% 0.1 59.6)
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 #78BFEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lightblue #7BC8F6 ΔE 0.025
- Sky #82CAFC ΔE 0.034
- Carolina Blue #8AB8FE ΔE 0.038
- Vivid Sky Blue #4CC9F0 ΔE 0.040
- Light Sky Blue #87CEFA ΔE 0.045
- Light Cornflower Blue #98C1D9 ΔE 0.046
- Sky Blue #87CEEB ΔE 0.048
- Light Grey Blue #9DBCD4 ΔE 0.051
Use #78BFEF 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.