#3B446C
Closest named color: Dark Grey Blue (#29465B). oklch(39.8% 0.069 273.3), rgb(59, 68, 108).
Aa
White text reads best on this color (9.41:1).
About this color
#3B446C is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.069 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.041 away. White text reads best on it, at 9.41:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.22:1 |
| White text | 9.41:1 |
Values
| HEX | #3B446C |
| RGB | rgb(59, 68, 108) |
| HSL | hsl(229, 29%, 33%) |
| OKLCH | oklch(39.8% 0.069 273.3) |
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 #3B446C | 9.41:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #3B446C | 2.22:1 | Fails | Lc 12.2 | Not readable |
| #3B446C text on white | 9.41:1 | AAA | Lc 91.7 | Preferred for body text |
| #3B446C text on black | 2.22:1 | Fails | Lc -10.7 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F4
oklch(93.5% 0.015 273.8)
-
Step 200
200
#D3D8ED
oklch(88.5% 0.029 275.1)
-
Step 300
300
#B5BFE3
oklch(80.9% 0.052 273)
-
Step 400
400
#909DD5
oklch(70.7% 0.083 274)
-
Step 500
500
#7584C9
oklch(63% 0.106 273.7)
-
Step 600
600
#5E6DB6
oklch(55.6% 0.115 273.4)
-
Step 700
700
#4E5B9D
oklch(49.2% 0.107 273.5)
-
Step 800
800
#404A7F
oklch(42.6% 0.089 274)
-
Step 900
900 (this color)
#3B446C
oklch(39.8% 0.069 273.3)
-
Step 950
950
#1F253C
oklch(27% 0.044 272.1)
#3B446C 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) | #36486E | 0.013 |
| Deuteranopia (no green cones) | #32446B | 0.013 |
| Tritanopia (no blue cones) | #2B4C53 | 0.060 |
| Achromatopsia (no color) | #464646 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B446C
#3B446C
oklch(39.8% 0.069 273.3)
- #544615
#544615
oklch(39.8% 0.069 92.9)
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 #3B446C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.041
- Twilight Blue #0A437A ΔE 0.053
- Charcoal #264653 ΔE 0.055
- Light Navy #155084 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.062
- Deep Sea Blue #015482 ΔE 0.063
- Dusk #4E5481 ΔE 0.063
- Cobalt #1E488F ΔE 0.064
Use #3B446C 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.