#3A2E7B
Closest named color: Dark Slate Blue (#483D8B). oklch(36.1% 0.125 285.4), rgb(58, 46, 123).
Aa
White text reads best on this color (11.31:1).
About this color
#3A2E7B is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.125 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.053 away. White text reads best on it, at 11.31:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.85:1 |
| White text | 11.31:1 |
Values
| HEX | #3A2E7B |
| RGB | rgb(58, 46, 123) |
| HSL | hsl(249, 46%, 33%) |
| OKLCH | oklch(36.1% 0.125 285.4) |
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 #3A2E7B | 11.31:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #3A2E7B | 1.85:1 | Fails | Lc 8.1 | Not readable |
| #3A2E7B text on white | 11.31:1 | AAA | Lc 95.7 | Preferred for body text |
| #3A2E7B text on black | 1.85:1 | 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
#F4F4FE
oklch(97% 0.013 286.1)
-
Step 100
100
#E8E8FC
oklch(93.7% 0.027 285.9)
-
Step 200
200
#D5D5FB
oklch(88.5% 0.052 285.3)
-
Step 300
300
#BAB8FB
oklch(80.8% 0.094 285.5)
-
Step 400
400
#9991FA
oklch(70.8% 0.151 285.3)
-
Step 500
500
#8271F6
oklch(63.1% 0.192 285.3)
-
Step 600
600
#6E55E5
oklch(55.7% 0.208 285.4)
-
Step 700
700
#5C43C7
oklch(49% 0.195 285.4)
-
Step 800
800
#4B39A1
oklch(42.7% 0.16 285.3)
-
Step 900
900 (this color)
#3A2E7B
oklch(36.1% 0.125 285.4)
-
Step 950
950
#241E4B
oklch(26.9% 0.08 285.8)
#3A2E7B 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) | #003D7E | 0.064 |
| Deuteranopia (no green cones) | #003879 | 0.062 |
| Tritanopia (no blue cones) | #224050 | 0.104 |
| Achromatopsia (no color) | #3A3A3A | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A2E7B
#3A2E7B
oklch(36.1% 0.125 285.4)
- #433F00
#433F00
oklch(36% 0.077 105.6)
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 #3A2E7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.053
- Blueberry #464196 ΔE 0.068
- Twilight Blue #0A437A ΔE 0.070
- Marine Blue #01386A ΔE 0.072
- Indigo #4B0082 ΔE 0.072
- Cobalt #1E488F ΔE 0.076
- Prussian Blue #1D3557 ΔE 0.080
- Midnight Blue #191970 ΔE 0.081
Use #3A2E7B 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.