#3D446B
Closest named color: Dark Grey Blue (#29465B). oklch(39.9% 0.066 275.2), rgb(61, 68, 107).
Aa
White text reads best on this color (9.38:1).
About this color
#3D446B is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.066 and its hue 275°. 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 9.38:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.23:1 |
| White text | 9.38:1 |
Values
| HEX | #3D446B |
| RGB | rgb(61, 68, 107) |
| HSL | hsl(231, 27%, 33%) |
| OKLCH | oklch(39.9% 0.066 275.2) |
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 #3D446B | 9.38:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #3D446B | 2.23:1 | Fails | Lc 12.3 | Not readable |
| #3D446B text on white | 9.38:1 | AAA | Lc 91.6 | Preferred for body text |
| #3D446B text on black | 2.23:1 | 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
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D3D8EC
oklch(88.4% 0.028 274.6)
-
Step 300
300
#B7BFE2
oklch(81% 0.05 275.1)
-
Step 400
400
#929DD3
oklch(70.7% 0.08 275.3)
-
Step 500
500
#7884C7
oklch(63.1% 0.102 275.4)
-
Step 600
600
#616DB4
oklch(55.7% 0.111 275)
-
Step 700
700
#505A9B
oklch(49% 0.104 275.3)
-
Step 800
800
#424A7D
oklch(42.7% 0.085 275.5)
-
Step 900
900 (this color)
#3D446B
oklch(39.9% 0.066 275.2)
-
Step 950
950
#20253B
oklch(27.1% 0.042 273.5)
#3D446B 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) | #37486D | 0.014 |
| Deuteranopia (no green cones) | #33456A | 0.014 |
| Tritanopia (no blue cones) | #2E4C52 | 0.060 |
| Achromatopsia (no color) | #464646 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D446B
#3D446B
oklch(39.9% 0.066 275.2)
- #524718
#524718
oklch(39.9% 0.066 96)
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 #3D446B, 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
- Charcoal #264653 ΔE 0.055
- Twilight Blue #0A437A ΔE 0.056
- Light Navy #155084 ΔE 0.058
- Dusk #4E5481 ΔE 0.063
- Dark Slate Blue #483D8B ΔE 0.063
- Deep Sea Blue #015482 ΔE 0.065
- Dusk Blue #26538D ΔE 0.066
Use #3D446B 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.