#3E3071
Closest named color: Dark Slate Blue (#483D8B). oklch(36.1% 0.108 289.8), rgb(62, 48, 113).
Aa
White text reads best on this color (11.25:1).
About this color
#3E3071 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.108 and its hue 290°. 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 11.25:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.86:1 |
| White text | 11.25:1 |
Values
| HEX | #3E3071 |
| RGB | rgb(62, 48, 113) |
| HSL | hsl(253, 40%, 32%) |
| OKLCH | oklch(36.1% 0.108 289.8) |
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 #3E3071 | 11.25:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #3E3071 | 1.86:1 | Fails | Lc 8.1 | Not readable |
| #3E3071 text on white | 11.25:1 | AAA | Lc 95.7 | Preferred for body text |
| #3E3071 text on black | 1.86:1 | Fails | Lc 0.0 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D8D5F6
oklch(88.6% 0.045 289.6)
-
Step 300
300
#BFB8F2
oklch(80.8% 0.081 290)
-
Step 400
400
#A092EB
oklch(70.8% 0.128 289.9)
-
Step 500
500
#8A74E5
oklch(63.2% 0.165 289.8)
-
Step 600
600
#7559D3
oklch(55.6% 0.18 289.8)
-
Step 700
700
#6348B7
oklch(49.1% 0.168 290)
-
Step 800
800
#503C94
oklch(42.7% 0.139 289.7)
-
Step 900
900 (this color)
#3E3071
oklch(36.1% 0.108 289.8)
-
Step 950
950
#261F45
oklch(26.9% 0.069 289.4)
#3E3071 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) | #0F3C73 | 0.062 |
| Deuteranopia (no green cones) | #113970 | 0.060 |
| Tritanopia (no blue cones) | #2F3E4B | 0.089 |
| Achromatopsia (no color) | #3B3B3B | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E3071
#3E3071
oklch(36.1% 0.108 289.8)
- #404000
#404000
oklch(36% 0.078 109.8)
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 #3E3071, 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
- Prussian Blue #1D3557 ΔE 0.071
- Marine Blue #01386A ΔE 0.071
- Twilight Blue #0A437A ΔE 0.072
- Blueberry #464196 ΔE 0.075
- Indigo #4B0082 ΔE 0.080
- Marine #042E60 ΔE 0.081
- Royal Purple #4B006E ΔE 0.082
Use #3E3071 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.