#3E366D
Closest named color: Dark Slate Blue (#483D8B). oklch(37% 0.092 287.7), rgb(62, 54, 109).
Aa
White text reads best on this color (10.75:1).
About this color
#3E366D is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.092 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.055 away. White text reads best on it, at 10.75:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.95:1 |
| White text | 10.75:1 |
Values
| HEX | #3E366D |
| RGB | rgb(62, 54, 109) |
| HSL | hsl(249, 34%, 32%) |
| OKLCH | oklch(37% 0.092 287.7) |
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 #3E366D | 10.75:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #3E366D | 1.95:1 | Fails | Lc 9.1 | Not readable |
| #3E366D text on white | 10.75:1 | AAA | Lc 94.8 | Preferred for body text |
| #3E366D text on black | 1.95:1 | Fails | Lc -7.8 | 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
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D7D6F2
oklch(88.6% 0.038 287.2)
-
Step 300
300
#BDBAEB
oklch(80.8% 0.069 287.6)
-
Step 400
400
#9D95E2
oklch(70.7% 0.111 288)
-
Step 500
500
#8679D9
oklch(63% 0.141 287.9)
-
Step 600
600
#7160C7
oklch(55.6% 0.154 287.9)
-
Step 700
700
#5F4FAC
oklch(49.2% 0.143 287.9)
-
Step 800
800
#4D418B
oklch(42.6% 0.118 287.7)
-
Step 900
900 (this color)
#3E366D
oklch(37% 0.092 287.7)
-
Step 950
950
#252141
oklch(27% 0.058 287.5)
#3E366D 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) | #213F6F | 0.045 |
| Deuteranopia (no green cones) | #203C6C | 0.044 |
| Tritanopia (no blue cones) | #31414C | 0.077 |
| Achromatopsia (no color) | #3E3E3E | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E366D
#3E366D
oklch(37% 0.092 287.7)
- #444200
#444200
oklch(36.9% 0.079 107.8)
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 #3E366D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.055
- Twilight Blue #0A437A ΔE 0.063
- Prussian Blue #1D3557 ΔE 0.064
- Marine Blue #01386A ΔE 0.067
- Dark Grey Blue #29465B ΔE 0.069
- Blueberry #464196 ΔE 0.074
- Cobalt #1E488F ΔE 0.076
- Dark Blue Grey #1F3B4D ΔE 0.078
Use #3E366D 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.