#4978F7
Closest named color: Clear Blue (#247AFD). oklch(60.9% 0.197 265.6), rgb(73, 120, 247).
Aa
Black text reads best on this color (5.31:1).
About this color
#4978F7 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.197 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.026 away. Black text reads best on it, at 5.31:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.31:1 |
| White text | 3.95:1 |
Values
| HEX | #4978F7 |
| RGB | rgb(73, 120, 247) |
| HSL | hsl(224, 92%, 63%) |
| OKLCH | oklch(60.9% 0.197 265.6) |
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 #4978F7 | 3.95:1 | AA large text | Lc -72.0 | Content text, not long reading |
| Black text on #4978F7 | 5.31:1 | AA | Lc 37.6 | Non-text elements, placeholder text |
| #4978F7 text on white | 3.95:1 | AA large text | Lc 66.5 | Content text, not long reading |
| #4978F7 text on black | 5.31:1 | AA | Lc -35.2 | 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
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8D9FE
oklch(88.5% 0.054 265.8)
-
Step 300
300
#A3C0FF
oklch(80.9% 0.095 265.2)
-
Step 400
400
#739CFF
oklch(70.7% 0.152 265.7)
-
Step 500
500 (this color)
#4978F7
oklch(60.9% 0.197 265.6)
-
Step 600
600
#3664EE
oklch(55.6% 0.214 265.6)
-
Step 700
700
#2952CF
oklch(49.1% 0.199 265.5)
-
Step 800
800
#2344A7
oklch(42.7% 0.164 265.6)
-
Step 900
900
#203B85
oklch(37.8% 0.129 265.5)
-
Step 950
950
#13234E
oklch(27% 0.082 265.8)
#4978F7 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) | #2488FC | 0.042 |
| Deuteranopia (no green cones) | #0078F4 | 0.038 |
| Tritanopia (no blue cones) | #0096AC | 0.158 |
| Achromatopsia (no color) | #808080 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4978F7
#4978F7
oklch(60.9% 0.197 265.6)
- #A47C00
#A47C00
oklch(60.9% 0.125 85.8)
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 #4978F7, closest first.
No curated palette has a color within ΔE 0.04 of #4978F7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.026
- Cornflower #6A79F7 ΔE 0.037
- Royal Blue #4169E1 ΔE 0.050
- Cerulean Blue #056EEE ΔE 0.052
- Neon Blue #4361EE ΔE 0.057
- Soft Blue #6488EA ΔE 0.058
- Dodger Blue #1E90FF ΔE 0.060
- Dark Sky Blue #448EE4 ΔE 0.067
Use #4978F7 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.