#78A5EB
Closest named color: Periwinkle Blue (#8F99FB). oklch(71.8% 0.114 259), rgb(120, 165, 235).
Aa
Black text reads best on this color (8.38:1).
About this color
#78A5EB is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.114 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.050 away. Black text reads best on it, at 8.38:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.38:1 |
| White text | 2.50:1 |
Values
| HEX | #78A5EB |
| RGB | rgb(120, 165, 235) |
| HSL | hsl(217, 74%, 70%) |
| OKLCH | oklch(71.8% 0.114 259) |
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 #78A5EB | 2.50:1 | Fails | Lc -54.1 | Large or bold text, headings |
| Black text on #78A5EB | 8.38:1 | AAA | Lc 54.9 | Large or bold text, headings |
| #78A5EB text on white | 2.50:1 | Fails | Lc 49.1 | Large or bold text, headings |
| #78A5EB text on black | 8.38:1 | AAA | Lc -52.9 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF8
oklch(93.7% 0.02 257.5)
-
Step 200
200
#CADAF4
oklch(88.4% 0.04 260.1)
-
Step 300
300
#A5C2EF
oklch(80.8% 0.071 259.1)
-
Step 400
400 (this color)
#78A5EB
oklch(71.8% 0.114 259)
-
Step 500
500
#5088E0
oklch(63% 0.146 259.1)
-
Step 600
600
#3470CE
oklch(55.6% 0.158 259.2)
-
Step 700
700
#265DB2
oklch(49% 0.147 259.1)
-
Step 800
800
#214D90
oklch(42.7% 0.121 258.8)
-
Step 900
900
#204173
oklch(37.8% 0.094 258.6)
-
Step 950
950
#132643
oklch(26.9% 0.06 258.6)
#78A5EB 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) | #8AAAEE | 0.026 |
| Deuteranopia (no green cones) | #7D9FEA | 0.016 |
| Tritanopia (no blue cones) | #44B4BE | 0.101 |
| Achromatopsia (no color) | #A4A4A4 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78A5EB
#78A5EB
oklch(71.8% 0.114 259)
- #CA9B49
#CA9B49
oklch(71.8% 0.114 79.1)
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 #78A5EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.050
- Cornflower Blue #6495ED ΔE 0.052
- Carolina Blue #8AB8FE ΔE 0.059
- Perrywinkle #8F8CE7 ΔE 0.067
- Chefchaouen Blue #4895EF ΔE 0.069
- Greyblue #77A1B5 ΔE 0.079
- Lavender Blue #8B88F8 ΔE 0.083
- Deep Sky Blue #00BFFF ΔE 0.083
Use #78A5EB 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.