#4780FF
Closest named color: Clear Blue (#247AFD). oklch(63% 0.199 263.5), rgb(71, 128, 255).
Aa
Black text reads best on this color (5.79:1).
About this color
#4780FF is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.199 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.031 away. Black text reads best on it, at 5.79:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.199) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.79:1 |
| White text | 3.62:1 |
Values
| HEX | #4780FF |
| RGB | rgb(71, 128, 255) |
| HSL | hsl(221, 100%, 64%) |
| OKLCH | oklch(63% 0.199 263.5) |
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 #4780FF | 3.62:1 | AA large text | Lc -68.8 | Content text, not long reading |
| Black text on #4780FF | 5.79:1 | AA | Lc 40.7 | Non-text elements, placeholder text |
| #4780FF text on white | 3.62:1 | AA large text | Lc 63.4 | Content text, not long reading |
| #4780FF text on black | 5.79:1 | AA | Lc -38.3 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C7DAFE
oklch(88.6% 0.054 263.2)
-
Step 300
300
#A1C1FF
oklch(81% 0.095 263.3)
-
Step 400
400
#6E9DFF
oklch(70.6% 0.153 263.6)
-
Step 500
500 (this color)
#4780FF
oklch(63% 0.199 263.5)
-
Step 600
600
#2B66EF
oklch(55.7% 0.216 263.4)
-
Step 700
700
#1F53D0
oklch(49.1% 0.201 263.5)
-
Step 800
800
#1B45A8
oklch(42.7% 0.166 263.5)
-
Step 900
900
#1B3C85
oklch(37.8% 0.129 263.3)
-
Step 950
950
#10244E
oklch(27.1% 0.082 263)
#4780FF 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) | #328FFF | 0.038 |
| Deuteranopia (no green cones) | #007EFC | 0.035 |
| Tritanopia (no blue cones) | #009EB3 | 0.158 |
| Achromatopsia (no color) | #868686 | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4780FF
#4780FF
oklch(63% 0.199 263.5)
- #AE8100
#AE8100
oklch(63% 0.129 83.9)
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 #4780FF, closest first.
No curated palette has a color within ΔE 0.04 of #4780FF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.031
- Cornflower #6A79F7 ΔE 0.039
- Dodger Blue #1E90FF ΔE 0.042
- Soft Blue #6488EA ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.058
- Chefchaouen Blue #4895EF ΔE 0.063
- Cerulean Blue #056EEE ΔE 0.068
- Royal Blue #4169E1 ΔE 0.071
Use #4780FF 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.