#417DD1
Closest named color: Windows Blue (#3778BF). oklch(59.1% 0.143 257.3), rgb(65, 125, 209).
Aa
Black text reads best on this color (5.07:1).
About this color
#417DD1 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.143 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.032 away. Black text reads best on it, at 5.07:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 5.07:1 |
| White text | 4.13:1 |
Values
| HEX | #417DD1 |
| RGB | rgb(65, 125, 209) |
| HSL | hsl(215, 61%, 54%) |
| OKLCH | oklch(59.1% 0.143 257.3) |
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 #417DD1 | 4.13:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #417DD1 | 5.07:1 | AA | Lc 35.9 | Non-text elements, placeholder text |
| #417DD1 text on white | 4.13:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #417DD1 text on black | 5.07:1 | AA | Lc -33.5 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CBDBF1
oklch(88.6% 0.035 256.3)
-
Step 300
300
#A7C3EB
oklch(81% 0.064 257.3)
-
Step 400
400
#77A2E1
oklch(70.6% 0.104 257.8)
-
Step 500
500
#538AD8
oklch(63.1% 0.132 257.3)
-
Step 600
600 (this color)
#417DD1
oklch(59.1% 0.143 257.3)
-
Step 700
700
#295FAB
oklch(49% 0.134 257.6)
-
Step 800
800
#234E8A
oklch(42.6% 0.111 257.3)
-
Step 900
900
#22426E
oklch(37.8% 0.085 256.8)
-
Step 950
950
#142741
oklch(27.1% 0.055 256.6)
#417DD1 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) | #5684D4 | 0.030 |
| Deuteranopia (no green cones) | #4077CF | 0.016 |
| Tritanopia (no blue cones) | #00909D | 0.113 |
| Achromatopsia (no color) | #7D7D7D | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #417DD1
#417DD1
oklch(59.1% 0.143 257.3)
- #A67200
#A67200
oklch(59.1% 0.124 77.1)
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 #417DD1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.032
- Water Blue #0E87CC ΔE 0.037
- Cool Blue #4984B8 ΔE 0.048
- Steel Blue #4682B4 ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.051
- Royal Blue #4169E1 ΔE 0.060
- Soft Blue #6488EA ΔE 0.061
- Nice Blue #107AB0 ΔE 0.062
Use #417DD1 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.