#78A5FF
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.8% 0.14 263.2), rgb(120, 165, 255).
Aa
Black text reads best on this color (8.62:1).
About this color
#78A5FF is a medium-light, vivid blue. In OKLCH its lightness is 73%, its chroma 0.140 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.038 away. Black text reads best on it, at 8.62:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.62:1 |
| White text | 2.43:1 |
Values
| HEX | #78A5FF |
| RGB | rgb(120, 165, 255) |
| HSL | hsl(220, 100%, 74%) |
| OKLCH | oklch(72.8% 0.14 263.2) |
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 #78A5FF | 2.43:1 | Fails | Lc -52.8 | Large or bold text, headings |
| Black text on #78A5FF | 8.62:1 | AAA | Lc 56.2 | Large or bold text, headings |
| #78A5FF text on white | 2.43:1 | Fails | Lc 47.8 | Large or bold text, headings |
| #78A5FF text on black | 8.62:1 | AAA | Lc -54.2 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C8DAFA
oklch(88.5% 0.048 262)
-
Step 300
300
#A3C1FA
oklch(80.9% 0.087 263)
-
Step 400
400 (this color)
#78A5FF
oklch(72.8% 0.14 263.2)
-
Step 500
500
#4D83F4
oklch(63.1% 0.179 263.1)
-
Step 600
600
#3269E3
oklch(55.5% 0.195 263.2)
-
Step 700
700
#2557C5
oklch(49.1% 0.18 263)
-
Step 800
800
#2048A0
oklch(42.8% 0.15 263.1)
-
Step 900
900
#1F3D7F
oklch(37.7% 0.118 263.4)
-
Step 950
950
#12244A
oklch(26.9% 0.075 263.2)
#78A5FF 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) | #81ADFF | 0.025 |
| Deuteranopia (no green cones) | #71A0FD | 0.016 |
| Tritanopia (no blue cones) | #2FB9C6 | 0.126 |
| Achromatopsia (no color) | #A6A6A6 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78A5FF
#78A5FF
oklch(72.8% 0.14 263.2)
- #D19E24
#D19E24
oklch(72.8% 0.14 83.5)
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 #78A5FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.038
- Cornflower Blue #6495ED ΔE 0.054
- Carolina Blue #8AB8FE ΔE 0.057
- Perrywinkle #8F8CE7 ΔE 0.068
- Chefchaouen Blue #4895EF ΔE 0.070
- Lavender Blue #8B88F8 ΔE 0.073
- Soft Blue #6488EA ΔE 0.084
- Deep Sky Blue #00BFFF ΔE 0.085
Use #78A5FF 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.