#3E3C7D
Closest named color: Dark Slate Blue (#483D8B). oklch(39.3% 0.107 281.7), rgb(62, 60, 125).
Aa
White text reads best on this color (9.77:1).
About this color
#3E3C7D is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.107 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.029 away. White text reads best on it, at 9.77:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.14:1 |
| White text | 9.77:1 |
Values
| HEX | #3E3C7D |
| RGB | rgb(62, 60, 125) |
| HSL | hsl(242, 35%, 36%) |
| OKLCH | oklch(39.3% 0.107 281.7) |
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 #3E3C7D | 9.77:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #3E3C7D | 2.14:1 | Fails | Lc 11.5 | Not readable |
| #3E3C7D text on white | 9.77:1 | AAA | Lc 92.5 | Preferred for body text |
| #3E3C7D text on black | 2.14:1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8FA
oklch(93.6% 0.024 283.4)
-
Step 200
200
#D4D6F7
oklch(88.5% 0.045 282.7)
-
Step 300
300
#B7BBF4
oklch(80.9% 0.08 281.3)
-
Step 400
400
#9496EE
oklch(70.8% 0.128 281.6)
-
Step 500
500
#7B79E9
oklch(63.1% 0.164 281.4)
-
Step 600
600
#665FD7
oklch(55.6% 0.178 281.5)
-
Step 700
700
#554DBA
oklch(49% 0.166 281.7)
-
Step 800
800
#464097
oklch(42.7% 0.138 282)
-
Step 900
900 (this color)
#3E3C7D
oklch(39.3% 0.107 281.7)
-
Step 950
950
#222146
oklch(27% 0.067 282.1)
#3E3C7D 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) | #1E467F | 0.044 |
| Deuteranopia (no green cones) | #19417C | 0.045 |
| Tritanopia (no blue cones) | #274A56 | 0.093 |
| Achromatopsia (no color) | #444444 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E3C7D
#3E3C7D
oklch(39.3% 0.107 281.7)
- #4F4700
#4F4700
oklch(39.4% 0.082 102.1)
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 #3E3C7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.029
- Blueberry #464196 ΔE 0.045
- Cobalt #1E488F ΔE 0.052
- Twilight Blue #0A437A ΔE 0.055
- Light Navy #155084 ΔE 0.065
- Twilight #4E518B ΔE 0.068
- Dusk Blue #26538D ΔE 0.068
- Dusk #4E5481 ΔE 0.075
Use #3E3C7D 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.