#4C73F3
Closest named color: Clear Blue (#247AFD). oklch(59.8% 0.197 267.4), rgb(76, 115, 243).
Aa
Black text reads best on this color (5.05:1).
About this color
#4C73F3 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.197 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.033 away. Black text reads best on it, at 5.05:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.05:1 |
| White text | 4.15:1 |
Values
| HEX | #4C73F3 |
| RGB | rgb(76, 115, 243) |
| HSL | hsl(226, 87%, 63%) |
| OKLCH | oklch(59.8% 0.197 267.4) |
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 #4C73F3 | 4.15:1 | AA large text | Lc -73.7 | Content text, not long reading |
| Black text on #4C73F3 | 5.05:1 | AA | Lc 35.9 | Non-text elements, placeholder text |
| #4C73F3 text on white | 4.15:1 | AA large text | Lc 68.2 | Content text, not long reading |
| #4C73F3 text on black | 5.05:1 | AA | Lc -33.5 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#C9D9FE
oklch(88.5% 0.054 266.8)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#779BFF
oklch(70.7% 0.152 267.5)
-
Step 500
500 (this color)
#4C73F3
oklch(59.8% 0.197 267.4)
-
Step 600
600
#3D63EE
oklch(55.7% 0.213 267.3)
-
Step 700
700
#3050CF
oklch(49% 0.199 267.4)
-
Step 800
800
#2843A7
oklch(42.7% 0.164 267.3)
-
Step 900
900
#243A85
oklch(37.8% 0.129 267.5)
-
Step 950
950
#15234E
oklch(27.1% 0.081 267.2)
#4C73F3 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) | #1684F7 | 0.048 |
| Deuteranopia (no green cones) | #0075F0 | 0.041 |
| Tritanopia (no blue cones) | #0092A8 | 0.160 |
| Achromatopsia (no color) | #7C7C7C | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C73F3
#4C73F3
oklch(59.8% 0.197 267.4)
- #9E7A00
#9E7A00
oklch(59.8% 0.122 87.9)
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 #4C73F3, closest first.
No curated palette has a color within ΔE 0.04 of #4C73F3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.033
- Royal Blue #4169E1 ΔE 0.039
- Cornflower #6A79F7 ΔE 0.040
- Neon Blue #4361EE ΔE 0.046
- Cerulean Blue #056EEE ΔE 0.047
- Bright Blue #0165FC ΔE 0.062
- Medium Slate Blue #7B68EE ΔE 0.062
- Soft Blue #6488EA ΔE 0.066
Use #4C73F3 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.