#78A9FF
Closest named color: Periwinkle Blue (#8F99FB). oklch(73.6% 0.136 261.1), rgb(120, 169, 255).
Aa
Black text reads best on this color (8.91:1).
About this color
#78A9FF is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.136 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.045 away. Black text reads best on it, at 8.91:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.91:1 |
| White text | 2.35:1 |
Values
| HEX | #78A9FF |
| RGB | rgb(120, 169, 255) |
| HSL | hsl(218, 100%, 74%) |
| OKLCH | oklch(73.6% 0.136 261.1) |
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 #78A9FF | 2.35:1 | Fails | Lc -51.2 | Large or bold text, headings |
| Black text on #78A9FF | 8.91:1 | AAA | Lc 57.7 | Large or bold text, headings |
| #78A9FF text on white | 2.35:1 | Fails | Lc 46.3 | Large or bold text, headings |
| #78A9FF text on black | 8.91:1 | AAA | Lc -55.8 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C8DAF9
oklch(88.5% 0.047 261.4)
-
Step 300
300
#A2C2F8
oklch(81% 0.084 260.7)
-
Step 400
400 (this color)
#78A9FF
oklch(73.6% 0.136 261.1)
-
Step 500
500
#4985F1
oklch(63.1% 0.174 261.1)
-
Step 600
600
#2B6CE0
oklch(55.7% 0.189 261)
-
Step 700
700
#1E59C2
oklch(49.1% 0.176 261)
-
Step 800
800
#1B499D
oklch(42.6% 0.146 261.2)
-
Step 900
900
#1C3E7D
oklch(37.6% 0.114 261.4)
-
Step 950
950
#112549
oklch(27% 0.072 261.1)
#78A9FF 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) | #87B0FF | 0.027 |
| Deuteranopia (no green cones) | #76A3FD | 0.016 |
| Tritanopia (no blue cones) | #2DBCC8 | 0.122 |
| Achromatopsia (no color) | #A9A9A9 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78A9FF
#78A9FF
oklch(73.6% 0.136 261.1)
- #D5A031
#D5A031
oklch(73.7% 0.136 81.5)
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 #78A9FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.045
- Carolina Blue #8AB8FE ΔE 0.047
- Cornflower Blue #6495ED ΔE 0.062
- Perrywinkle #8F8CE7 ΔE 0.077
- Chefchaouen Blue #4895EF ΔE 0.077
- Deep Sky Blue #00BFFF ΔE 0.078
- Pastel Blue #A2BFFE ΔE 0.081
- Lavender Blue #8B88F8 ΔE 0.083
Use #78A9FF 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.