#407DE4
Closest named color: Clear Blue (#247AFD). oklch(60.2% 0.169 260.2), rgb(64, 125, 228).
Aa
Black text reads best on this color (5.27:1).
About this color
#407DE4 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.169 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.043 away. Black text reads best on it, at 5.27:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.27:1 |
| White text | 3.98:1 |
Values
| HEX | #407DE4 |
| RGB | rgb(64, 125, 228) |
| HSL | hsl(218, 75%, 57%) |
| OKLCH | oklch(60.2% 0.169 260.2) |
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 #407DE4 | 3.98:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #407DE4 | 5.27:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #407DE4 text on white | 3.98:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #407DE4 text on black | 5.27:1 | AA | Lc -34.9 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C8DAF8
oklch(88.4% 0.046 260.7)
-
Step 300
300
#A2C2F7
oklch(80.9% 0.083 260.4)
-
Step 400
400
#6FA0F2
oklch(70.6% 0.132 260.2)
-
Step 500
500 (this color)
#407DE4
oklch(60.2% 0.169 260.2)
-
Step 600
600
#2A6DDC
oklch(55.6% 0.183 260.1)
-
Step 700
700
#1D5ABF
oklch(49% 0.171 260.2)
-
Step 800
800
#1A4A9B
oklch(42.6% 0.142 260.3)
-
Step 900
900
#1B3F7B
oklch(37.7% 0.11 260)
-
Step 950
950
#112548
oklch(26.9% 0.07 260.7)
#407DE4 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) | #4887E8 | 0.028 |
| Deuteranopia (no green cones) | #2578E2 | 0.025 |
| Tritanopia (no blue cones) | #0095A5 | 0.134 |
| Achromatopsia (no color) | #7F7F7F | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #407DE4
#407DE4
oklch(60.2% 0.169 260.2)
- #A77700
#A77700
oklch(60.2% 0.125 80.4)
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 #407DE4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.043
- Dark Sky Blue #448EE4 ΔE 0.046
- Soft Blue #6488EA ΔE 0.050
- Royal Blue #4169E1 ΔE 0.051
- Cornflower #6A79F7 ΔE 0.055
- Water Blue #0E87CC ΔE 0.055
- Cerulean Blue #056EEE ΔE 0.056
- Windows Blue #3778BF ΔE 0.058
Use #407DE4 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.