#406AF1
Closest named color: Neon Blue (#4361EE). oklch(57.4% 0.208 266.6), rgb(64, 106, 241).
Aa
White text reads best on this color (4.61:1).
About this color
#406AF1 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.208 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.021 away. White text reads best on it, at 4.61:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.208) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.54:1 |
| White text | 4.61:1 |
Values
| HEX | #406AF1 |
| RGB | rgb(64, 106, 241) |
| HSL | hsl(226, 86%, 60%) |
| OKLCH | oklch(57.4% 0.208 266.6) |
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 #406AF1 | 4.61:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #406AF1 | 4.54:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #406AF1 text on white | 4.61:1 | AA | Lc 71.5 | Content text, not long reading |
| #406AF1 text on black | 4.54:1 | AA | Lc -30.2 | 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 600.
-
Step 50
50
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C9D9FD
oklch(88.5% 0.053 266.4)
-
Step 300
300
#A5BFFE
oklch(80.8% 0.094 267)
-
Step 400
400
#769CFE
oklch(70.8% 0.15 266.6)
-
Step 500
500
#547FFC
oklch(63.1% 0.192 266.6)
-
Step 600
600 (this color)
#406AF1
oklch(57.4% 0.208 266.6)
-
Step 700
700
#2E52CC
oklch(49% 0.193 266.5)
-
Step 800
800
#2744A5
oklch(42.7% 0.16 266.7)
-
Step 900
900
#233B83
oklch(37.8% 0.125 266.5)
-
Step 950
950
#15234D
oklch(27% 0.08 267.1)
#406AF1 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) | #007DF6 | 0.049 |
| Deuteranopia (no green cones) | #006DEE | 0.032 |
| Tritanopia (no blue cones) | #008BA3 | 0.165 |
| Achromatopsia (no color) | #757575 | 0.209 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #406AF1
#406AF1
oklch(57.4% 0.208 266.6)
- #977200
#977200
oklch(57.3% 0.117 85.9)
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 #406AF1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.021
- Royal Blue #4169E1 ΔE 0.024
- Cerulean Blue #056EEE ΔE 0.031
- Bright Blue #0165FC ΔE 0.040
- Clear Blue #247AFD ΔE 0.041
- Azul #1D5DEC ΔE 0.045
- Warm Blue #4B57DB ΔE 0.054
- Cornflower #6A79F7 ΔE 0.065
Use #406AF1 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.