#406EF1
Closest named color: Royal Blue (#4169E1). oklch(58.1% 0.204 265.7), rgb(64, 110, 241).
Aa
Black text reads best on this color (4.71:1).
About this color
#406EF1 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.204 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.026 away. Black text reads best on it, at 4.71:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.204) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.71:1 |
| White text | 4.45:1 |
Values
| HEX | #406EF1 |
| RGB | rgb(64, 110, 241) |
| HSL | hsl(224, 86%, 60%) |
| OKLCH | oklch(58.1% 0.204 265.7) |
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 #406EF1 | 4.45:1 | AA large text | Lc -75.8 | Fine for body text |
| Black text on #406EF1 | 4.71:1 | AA | Lc 33.7 | Non-text elements, placeholder text |
| #406EF1 text on white | 4.45:1 | AA large text | Lc 70.4 | Content text, not long reading |
| #406EF1 text on black | 4.71:1 | AA | Lc -31.3 | 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 600.
-
Step 50
50
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9D9FC
oklch(88.5% 0.051 265.9)
-
Step 300
300
#A5C0FD
oklch(81% 0.092 265.9)
-
Step 400
400
#759CFC
oklch(70.6% 0.147 266)
-
Step 500
500
#5380F9
oklch(63.1% 0.187 265.9)
-
Step 600
600 (this color)
#406EF1
oklch(58.1% 0.204 265.7)
-
Step 700
700
#2C54CA
oklch(49.2% 0.189 265.5)
-
Step 800
800
#2545A3
oklch(42.6% 0.157 265.7)
-
Step 900
900
#223C81
oklch(37.8% 0.121 265.4)
-
Step 950
950
#14234C
oklch(26.9% 0.078 266.1)
#406EF1 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) | #0080F6 | 0.047 |
| Deuteranopia (no green cones) | #0070EE | 0.031 |
| Tritanopia (no blue cones) | #008EA5 | 0.161 |
| Achromatopsia (no color) | #777777 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #406EF1
#406EF1
oklch(58.1% 0.204 265.7)
- #9A7400
#9A7400
oklch(58.1% 0.119 85.6)
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 #406EF1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.026
- Neon Blue #4361EE ΔE 0.030
- Cerulean Blue #056EEE ΔE 0.031
- Clear Blue #247AFD ΔE 0.034
- Bright Blue #0165FC ΔE 0.045
- Azul #1D5DEC ΔE 0.053
- Cornflower #6A79F7 ΔE 0.059
- Warm Blue #4B57DB ΔE 0.061
Use #406EF1 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.