#407AD5
Closest named color: Windows Blue (#3778BF). oklch(58.6% 0.152 259.1), rgb(64, 122, 213).
Aa
Black text reads best on this color (4.96:1).
About this color
#407AD5 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.152 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.035 away. Black text reads best on it, at 4.96:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.96:1 |
| White text | 4.23:1 |
Values
| HEX | #407AD5 |
| RGB | rgb(64, 122, 213) |
| HSL | hsl(217, 64%, 54%) |
| OKLCH | oklch(58.6% 0.152 259.1) |
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 #407AD5 | 4.23:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #407AD5 | 4.96:1 | AA | Lc 35.2 | Non-text elements, placeholder text |
| #407AD5 text on white | 4.23:1 | AA large text | Lc 68.9 | Content text, not long reading |
| #407AD5 text on black | 4.96:1 | AA | Lc -32.8 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CADAF3
oklch(88.4% 0.039 259.3)
-
Step 300
300
#A6C2ED
oklch(80.8% 0.068 258.9)
-
Step 400
400
#77A2E5
oklch(70.8% 0.109 259)
-
Step 500
500
#5389DD
oklch(63.2% 0.14 258.9)
-
Step 600
600 (this color)
#407AD5
oklch(58.6% 0.152 259.1)
-
Step 700
700
#295EAF
oklch(49.1% 0.141 258.9)
-
Step 800
800
#234D8E
oklch(42.7% 0.118 259)
-
Step 900
900
#224171
oklch(37.8% 0.09 258.9)
-
Step 950
950
#142642
oklch(26.9% 0.058 258.9)
#407AD5 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) | #4E82D9 | 0.027 |
| Deuteranopia (no green cones) | #3475D3 | 0.018 |
| Tritanopia (no blue cones) | #008F9D | 0.121 |
| Achromatopsia (no color) | #7B7B7B | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #407AD5
#407AD5
oklch(58.6% 0.152 259.1)
- #A27200
#A27200
oklch(58.6% 0.122 79.3)
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 #407AD5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.035
- Water Blue #0E87CC ΔE 0.045
- Royal Blue #4169E1 ΔE 0.049
- Dark Sky Blue #448EE4 ΔE 0.056
- Cool Blue #4984B8 ΔE 0.058
- Steel Blue #4682B4 ΔE 0.060
- Cerulean Blue #056EEE ΔE 0.061
- Clear Blue #247AFD ΔE 0.062
Use #407AD5 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.