#4978E7
Closest named color: Clear Blue (#247AFD). oklch(59.8% 0.176 264.4), rgb(73, 120, 231).
Aa
Black text reads best on this color (5.12:1).
About this color
#4978E7 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.176 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.040 away. Black text reads best on it, at 5.12:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.176) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.12:1 |
| White text | 4.09:1 |
Values
| HEX | #4978E7 |
| RGB | rgb(73, 120, 231) |
| HSL | hsl(222, 77%, 60%) |
| OKLCH | oklch(59.8% 0.176 264.4) |
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 #4978E7 | 4.09:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #4978E7 | 5.12:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #4978E7 text on white | 4.09:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #4978E7 text on black | 5.12:1 | AA | Lc -33.9 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#C9D9FA
oklch(88.4% 0.049 264.9)
-
Step 300
300
#A5C0F9
oklch(80.8% 0.086 264.8)
-
Step 400
400
#759EF6
oklch(70.7% 0.137 264.3)
-
Step 500
500 (this color)
#4978E7
oklch(59.8% 0.176 264.4)
-
Step 600
600
#3869E1
oklch(55.6% 0.191 264.3)
-
Step 700
700
#2B56C4
oklch(49% 0.179 264.5)
-
Step 800
800
#24479E
oklch(42.6% 0.148 264.4)
-
Step 900
900
#223D7E
oklch(37.8% 0.115 264.5)
-
Step 950
950
#14244A
oklch(27% 0.074 264.7)
#4978E7 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) | #3B85EB | 0.033 |
| Deuteranopia (no green cones) | #0D77E5 | 0.037 |
| Tritanopia (no blue cones) | #0092A4 | 0.143 |
| Achromatopsia (no color) | #7D7D7D | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4978E7
#4978E7
oklch(59.8% 0.176 264.4)
- #A17800
#A17800
oklch(59.7% 0.122 84.6)
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 #4978E7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.040
- Royal Blue #4169E1 ΔE 0.040
- Cornflower #6A79F7 ΔE 0.046
- Cerulean Blue #056EEE ΔE 0.051
- Soft Blue #6488EA ΔE 0.054
- Dark Sky Blue #448EE4 ΔE 0.058
- Neon Blue #4361EE ΔE 0.059
- Windows Blue #3778BF ΔE 0.065
Use #4978E7 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.