#3D3D52
Closest named color: Charcoal Grey (#3C4142). oklch(36.9% 0.036 284.5), rgb(61, 61, 82).
Aa
White text reads best on this color (10.56:1).
About this color
#3D3D52 is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.036 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.035 away. White text reads best on it, at 10.56:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.98:1 |
| White text | 10.56:1 |
Values
| HEX | #3D3D52 |
| RGB | rgb(61, 61, 82) |
| HSL | hsl(240, 15%, 28%) |
| OKLCH | oklch(36.9% 0.036 284.5) |
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 #3D3D52 | 10.56:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #3D3D52 | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #3D3D52 text on white | 10.56:1 | AAA | Lc 94.5 | Preferred for body text |
| #3D3D52 text on black | 1.98:1 | Fails | Lc -8.1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9EF
oklch(93.6% 0.008 286.2)
-
Step 200
200
#D8D8E3
oklch(88.5% 0.015 286.1)
-
Step 300
300
#BEBFD2
oklch(81% 0.027 283.4)
-
Step 400
400
#9D9DBB
oklch(70.6% 0.044 285.2)
-
Step 500
500
#8585AA
oklch(63% 0.055 284.7)
-
Step 600
600
#6F6F96
oklch(55.7% 0.06 284.3)
-
Step 700
700
#5D5D7F
oklch(49.2% 0.054 284.2)
-
Step 800
800
#4C4C68
oklch(42.8% 0.046 284.3)
-
Step 900
900 (this color)
#3D3D52
oklch(36.9% 0.036 284.5)
-
Step 950
950
#252531
oklch(27% 0.022 284.8)
#3D3D52 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) | #383F53 | 0.009 |
| Deuteranopia (no green cones) | #373E51 | 0.010 |
| Tritanopia (no blue cones) | #384144 | 0.033 |
| Achromatopsia (no color) | #3F3F3F | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3D52
#3D3D52
oklch(36.9% 0.036 284.5)
- #42412A
#42412A
oklch(37% 0.037 106)
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 #3D3D52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.035
- Onyx #343A40 ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.036
- Charcoal #264653 ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.045
- Gunmetal #293241 ΔE 0.056
- Prussian Blue #1D3557 ΔE 0.057
- Dark Slate Gray #2F4F4F ΔE 0.062
Use #3D3D52 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.