#78A3FF
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.4% 0.143 264.2), rgb(120, 163, 255).
Aa
Black text reads best on this color (8.48:1).
About this color
#78A3FF is a medium-light, vivid blue. In OKLCH its lightness is 72%, its chroma 0.143 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.035 away. Black text reads best on it, at 8.48:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.48:1 |
| White text | 2.47:1 |
Values
| HEX | #78A3FF |
| RGB | rgb(120, 163, 255) |
| HSL | hsl(221, 100%, 74%) |
| OKLCH | oklch(72.4% 0.143 264.2) |
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 #78A3FF | 2.47:1 | Fails | Lc -53.5 | Large or bold text, headings |
| Black text on #78A3FF | 8.48:1 | AAA | Lc 55.5 | Large or bold text, headings |
| #78A3FF text on white | 2.47:1 | Fails | Lc 48.5 | Large or bold text, headings |
| #78A3FF text on black | 8.48:1 | AAA | Lc -53.5 | 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
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9DAFB
oklch(88.6% 0.049 263.7)
-
Step 300
300
#A4C0FB
oklch(80.8% 0.089 264.8)
-
Step 400
400 (this color)
#78A3FF
oklch(72.4% 0.143 264.2)
-
Step 500
500
#4F82F6
oklch(63.1% 0.182 264)
-
Step 600
600
#3568E5
oklch(55.6% 0.198 264.2)
-
Step 700
700
#2856C7
oklch(49.2% 0.184 264)
-
Step 800
800
#2247A1
oklch(42.8% 0.152 264.1)
-
Step 900
900
#203D80
oklch(37.8% 0.119 264)
-
Step 950
950
#13244B
oklch(27% 0.076 264.2)
#78A3FF 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) | #7EABFF | 0.023 |
| Deuteranopia (no green cones) | #6E9FFD | 0.016 |
| Tritanopia (no blue cones) | #2FB7C5 | 0.128 |
| Achromatopsia (no color) | #A5A5A5 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78A3FF
#78A3FF
oklch(72.4% 0.143 264.2)
- #CF9D1B
#CF9D1B
oklch(72.4% 0.142 84.5)
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 #78A3FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.035
- Cornflower Blue #6495ED ΔE 0.050
- Carolina Blue #8AB8FE ΔE 0.062
- Perrywinkle #8F8CE7 ΔE 0.064
- Chefchaouen Blue #4895EF ΔE 0.067
- Lavender Blue #8B88F8 ΔE 0.068
- Soft Blue #6488EA ΔE 0.079
- Periwinkle #8E82FE ΔE 0.084
Use #78A3FF 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.