#3E396B
Closest named color: Dark Slate Blue (#483D8B). oklch(37.5% 0.084 286.2), rgb(62, 57, 107).
Aa
White text reads best on this color (10.48:1).
About this color
#3E396B is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.084 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.057 away. White text reads best on it, at 10.48:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.00:1 |
| White text | 10.48:1 |
Values
| HEX | #3E396B |
| RGB | rgb(62, 57, 107) |
| HSL | hsl(246, 30%, 32%) |
| OKLCH | oklch(37.5% 0.084 286.2) |
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 #3E396B | 10.48:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #3E396B | 2.00:1 | Fails | Lc 9.7 | Not readable |
| #3E396B text on white | 10.48:1 | AAA | Lc 94.2 | Preferred for body text |
| #3E396B text on black | 2.00:1 | Fails | Lc -8.3 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D7D6F0
oklch(88.5% 0.036 287.4)
-
Step 300
300
#BDBBE8
oklch(80.9% 0.063 286.9)
-
Step 400
400
#9B97DD
oklch(70.7% 0.101 286.1)
-
Step 500
500
#847CD3
oklch(63.1% 0.129 286.3)
-
Step 600
600
#6E64C0
oklch(55.6% 0.139 285.9)
-
Step 700
700
#5C52A6
oklch(49% 0.13 286)
-
Step 800
800
#4B4486
oklch(42.7% 0.106 285.8)
-
Step 900
900 (this color)
#3E396B
oklch(37.5% 0.084 286.2)
-
Step 950
950
#24223F
oklch(27% 0.053 285.4)
#3E396B 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) | #27416D | 0.037 |
| Deuteranopia (no green cones) | #263E6A | 0.036 |
| Tritanopia (no blue cones) | #31434C | 0.072 |
| Achromatopsia (no color) | #3F3F3F | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E396B
#3E396B
oklch(37.5% 0.084 286.2)
- #474300
#474300
oklch(37.5% 0.08 105.8)
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 #3E396B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.057
- Dark Grey Blue #29465B ΔE 0.060
- Twilight Blue #0A437A ΔE 0.060
- Prussian Blue #1D3557 ΔE 0.063
- Marine Blue #01386A ΔE 0.067
- Dark Blue Grey #1F3B4D ΔE 0.073
- Charcoal #264653 ΔE 0.073
- Cobalt #1E488F ΔE 0.074
Use #3E396B 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.