#4A73E7
Closest named color: Royal Blue (#4169E1). oklch(58.8% 0.182 266.3), rgb(74, 115, 231).
Aa
Black text reads best on this color (4.89:1).
About this color
#4A73E7 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.182 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.029 away. Black text reads best on it, at 4.89:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.182) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.89:1 |
| White text | 4.28:1 |
Values
| HEX | #4A73E7 |
| RGB | rgb(74, 115, 231) |
| HSL | hsl(224, 77%, 60%) |
| OKLCH | oklch(58.8% 0.182 266.3) |
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 #4A73E7 | 4.28:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #4A73E7 | 4.89:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #4A73E7 text on white | 4.28:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #4A73E7 text on black | 4.89:1 | AA | Lc -32.4 | 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 600.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F8
oklch(88.5% 0.045 266.2)
-
Step 300
300
#A8C0F6
oklch(80.9% 0.081 266)
-
Step 400
400
#7B9DF2
oklch(70.7% 0.131 266.6)
-
Step 500
500
#5A82ED
oklch(63% 0.167 266.3)
-
Step 600
600 (this color)
#4A73E7
oklch(58.8% 0.182 266.3)
-
Step 700
700
#3457BF
oklch(49.2% 0.168 266.2)
-
Step 800
800
#2B479A
oklch(42.6% 0.14 266.4)
-
Step 900
900
#263D7B
oklch(37.7% 0.109 266)
-
Step 950
950
#172448
oklch(27% 0.069 266.8)
#4A73E7 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) | #2E82EB | 0.040 |
| Deuteranopia (no green cones) | #0073E5 | 0.041 |
| Tritanopia (no blue cones) | #008EA2 | 0.147 |
| Achromatopsia (no color) | #7A7A7A | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A73E7
#4A73E7
oklch(58.8% 0.182 266.3)
- #9C7600
#9C7600
oklch(58.7% 0.12 86)
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 #4A73E7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.029
- Clear Blue #247AFD ΔE 0.042
- Cerulean Blue #056EEE ΔE 0.045
- Neon Blue #4361EE ΔE 0.047
- Cornflower #6A79F7 ΔE 0.049
- Dark Periwinkle #665FD1 ΔE 0.061
- Soft Blue #6488EA ΔE 0.065
- Medium Slate Blue #7B68EE ΔE 0.066
Use #4A73E7 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.