#3D3C4E
Closest named color: Onyx (#343A40). oklch(36.5% 0.031 287.3), rgb(61, 60, 78).
Aa
White text reads best on this color (10.74:1).
About this color
#3D3C4E is a dark, muted purple. In OKLCH its lightness is 36%, its chroma 0.031 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.029 away. White text reads best on it, at 10.74:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Onyx (#343A40) |
| Black text | 1.95:1 |
| White text | 10.74:1 |
Values
| HEX | #3D3C4E |
| RGB | rgb(61, 60, 78) |
| HSL | hsl(243, 13%, 27%) |
| OKLCH | oklch(36.5% 0.031 287.3) |
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 #3D3C4E | 10.74:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #3D3C4E | 1.95:1 | Fails | Lc 9.0 | Not readable |
| #3D3C4E text on white | 10.74:1 | AAA | Lc 94.9 | Preferred for body text |
| #3D3C4E text on black | 1.95:1 | Fails | Lc -7.7 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9EE
oklch(93.5% 0.007 286.3)
-
Step 200
200
#D8D8E1
oklch(88.5% 0.012 286.1)
-
Step 300
300
#BFBFCF
oklch(81% 0.022 285.9)
-
Step 400
400
#9F9EB7
oklch(70.8% 0.036 287.3)
-
Step 500
500
#8786A5
oklch(63.2% 0.046 286.5)
-
Step 600
600
#716F90
oklch(55.6% 0.051 287.4)
-
Step 700
700
#5F5D7B
oklch(49.2% 0.048 287.6)
-
Step 800
800
#4D4C64
oklch(42.7% 0.039 286.5)
-
Step 900
900 (this color)
#3D3C4E
oklch(36.5% 0.031 287.3)
-
Step 950
950
#262530
oklch(27% 0.02 289.1)
#3D3C4E 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) | #383E4F | 0.009 |
| Deuteranopia (no green cones) | #373D4E | 0.010 |
| Tritanopia (no blue cones) | #393F42 | 0.027 |
| Achromatopsia (no color) | #3E3E3E | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3C4E
#3D3C4E
oklch(36.5% 0.031 287.3)
- #40402D
#40402D
oklch(36.6% 0.031 107.8)
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 #3D3C4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.029
- Charcoal Grey #3C4142 ΔE 0.031
- Dark Grey Blue #29465B ΔE 0.040
- Charcoal #264653 ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.044
- Gunmetal #293241 ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.057
- Space Cadet #2B2D42 ΔE 0.060
Use #3D3C4E 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.