#78B4EB
Closest named color: Carolina Blue (#8AB8FE). oklch(75% 0.101 247.2), rgb(120, 180, 235).
Aa
Black text reads best on this color (9.52:1).
About this color
#78B4EB is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.101 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.036 away. Black text reads best on it, at 9.52:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.52:1 |
| White text | 2.20:1 |
Values
| HEX | #78B4EB |
| RGB | rgb(120, 180, 235) |
| HSL | hsl(209, 74%, 70%) |
| OKLCH | oklch(75% 0.101 247.2) |
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 #78B4EB | 2.20:1 | Fails | Lc -48.0 | Large or bold text, headings |
| Black text on #78B4EB | 9.52:1 | AAA | Lc 60.7 | Content text, not long reading |
| #78B4EB text on white | 2.20:1 | Fails | Lc 43.3 | Non-text elements, placeholder text |
| #78B4EB text on black | 9.52:1 | AAA | Lc -58.9 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C7DCF0
oklch(88.5% 0.036 246.9)
-
Step 300
300
#A0C5E8
oklch(80.9% 0.064 247.2)
-
Step 400
400 (this color)
#78B4EB
oklch(75% 0.101 247.2)
-
Step 500
500
#3E8FD3
oklch(63.1% 0.129 247.1)
-
Step 600
600
#1278C0
oklch(55.7% 0.14 246.9)
-
Step 700
700
#0064A5
oklch(49% 0.13 247.2)
-
Step 800
800
#095286
oklch(42.7% 0.108 247.1)
-
Step 900
900
#14446C
oklch(37.6% 0.085 247.9)
-
Step 950
950
#0E283F
oklch(26.9% 0.054 248)
#78B4EB 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) | #9DB5EE | 0.043 |
| Deuteranopia (no green cones) | #8EA9EA | 0.036 |
| Tritanopia (no blue cones) | #41C1C7 | 0.086 |
| Achromatopsia (no color) | #AFAFAF | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78B4EB
#78B4EB
oklch(75% 0.101 247.2)
- #D9A166
#D9A166
oklch(74.9% 0.101 66.7)
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 #78B4EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.036
- Lightblue #7BC8F6 ΔE 0.053
- Vivid Sky Blue #4CC9F0 ΔE 0.061
- Sky #82CAFC ΔE 0.061
- Light Grey Blue #9DBCD4 ΔE 0.061
- Deep Sky Blue #00BFFF ΔE 0.062
- Light Cornflower Blue #98C1D9 ΔE 0.063
- Pastel Blue #A2BFFE ΔE 0.064
Use #78B4EB 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.