#3D4263
Closest named color: Dark Grey Blue (#29465B). oklch(38.9% 0.056 276.8), rgb(61, 66, 99).
Aa
White text reads best on this color (9.73:1).
About this color
#3D4263 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.056 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.034 away. White text reads best on it, at 9.73:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.15:1 |
| White text | 9.73:1 |
Values
| HEX | #3D4263 |
| RGB | rgb(61, 66, 99) |
| HSL | hsl(232, 24%, 31%) |
| OKLCH | oklch(38.9% 0.056 276.8) |
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 #3D4263 | 9.73:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #3D4263 | 2.15:1 | Fails | Lc 11.4 | Not readable |
| #3D4263 text on white | 9.73:1 | AAA | Lc 92.5 | Preferred for body text |
| #3D4263 text on black | 2.15:1 | Fails | Lc -9.9 | 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
#D5D8E9
oklch(88.5% 0.023 277.9)
-
Step 300
300
#B9BFDC
oklch(80.9% 0.041 276.2)
-
Step 400
400
#959DCB
oklch(70.6% 0.068 276.8)
-
Step 500
500
#7C85BE
oklch(63.2% 0.086 276.7)
-
Step 600
600
#656EAA
oklch(55.7% 0.094 276.4)
-
Step 700
700
#545B92
oklch(49% 0.088 277.1)
-
Step 800
800
#454B76
oklch(42.7% 0.072 276.9)
-
Step 900
900 (this color)
#3D4263
oklch(38.9% 0.056 276.8)
-
Step 950
950
#222538
oklch(27.1% 0.036 276.8)
#3D4263 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) | #384664 | 0.013 |
| Deuteranopia (no green cones) | #354362 | 0.012 |
| Tritanopia (no blue cones) | #32484E | 0.049 |
| Achromatopsia (no color) | #444444 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D4263
#3D4263
oklch(38.9% 0.056 276.8)
- #4D451F
#4D451F
oklch(38.9% 0.057 97.7)
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 #3D4263, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.034
- Charcoal #264653 ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.062
- Twilight Blue #0A437A ΔE 0.062
- Onyx #343A40 ΔE 0.063
- Dark Slate Gray #2F4F4F ΔE 0.064
- Prussian Blue #1D3557 ΔE 0.066
Use #3D4263 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.