#3D4463
Closest named color: Dark Grey Blue (#29465B). oklch(39.4% 0.053 273.9), rgb(61, 68, 99).
Aa
White text reads best on this color (9.52:1).
About this color
#3D4463 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.053 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.032 away. White text reads best on it, at 9.52:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.20:1 |
| White text | 9.52:1 |
Values
| HEX | #3D4463 |
| RGB | rgb(61, 68, 99) |
| HSL | hsl(229, 24%, 31%) |
| OKLCH | oklch(39.4% 0.053 273.9) |
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 #3D4463 | 9.52:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #3D4463 | 2.20:1 | Fails | Lc 11.9 | Not readable |
| #3D4463 text on white | 9.52:1 | AAA | Lc 92.0 | Preferred for body text |
| #3D4463 text on black | 2.20:1 | Fails | Lc -10.4 | Not readable |
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 900.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D4D8E8
oklch(88.4% 0.022 274.7)
-
Step 300
300
#B8BFDB
oklch(80.8% 0.04 274.4)
-
Step 400
400
#949EC9
oklch(70.7% 0.064 274.5)
-
Step 500
500
#7A86BB
oklch(63.1% 0.081 274)
-
Step 600
600
#636FA8
oklch(55.6% 0.09 274.1)
-
Step 700
700
#525D90
oklch(49.2% 0.083 273.7)
-
Step 800
800
#434C75
oklch(42.7% 0.069 273.7)
-
Step 900
900 (this color)
#3D4463
oklch(39.4% 0.053 273.9)
-
Step 950
950
#212537
oklch(26.9% 0.034 274.3)
#3D4463 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) | #3A4764 | 0.009 |
| Deuteranopia (no green cones) | #374462 | 0.009 |
| Tritanopia (no blue cones) | #324A4F | 0.048 |
| Achromatopsia (no color) | #454545 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D4463
#3D4463
oklch(39.4% 0.053 273.9)
- #504623
#504623
oklch(39.6% 0.054 93.8)
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 #3D4463, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.032
- Charcoal #264653 ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.056
- Dark Slate Gray #2F4F4F ΔE 0.059
- Twilight Blue #0A437A ΔE 0.063
- Dark Blue Grey #1F3B4D ΔE 0.064
- Onyx #343A40 ΔE 0.064
- Light Navy #155084 ΔE 0.066
Use #3D4463 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.