#3A2D7F
Closest named color: Dark Slate Blue (#483D8B). oklch(36.3% 0.132 284.9), rgb(58, 45, 127).
Aa
White text reads best on this color (11.27:1).
About this color
#3A2D7F is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.132 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 11.27:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.86:1 |
| White text | 11.27:1 |
Values
| HEX | #3A2D7F |
| RGB | rgb(58, 45, 127) |
| HSL | hsl(250, 48%, 34%) |
| OKLCH | oklch(36.3% 0.132 284.9) |
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 #3A2D7F | 11.27:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #3A2D7F | 1.86:1 | Fails | Lc 8.3 | Not readable |
| #3A2D7F text on white | 11.27:1 | AAA | Lc 95.6 | Preferred for body text |
| #3A2D7F 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
#F4F4FE
oklch(97% 0.013 286.1)
-
Step 100
100
#E7E8FD
oklch(93.7% 0.028 283.7)
-
Step 200
200
#D5D5FD
oklch(88.6% 0.055 285.2)
-
Step 300
300
#B9B8FF
oklch(80.9% 0.1 284.6)
-
Step 400
400
#9890FF
oklch(70.8% 0.159 284.9)
-
Step 500
500
#816FFD
oklch(63.1% 0.203 284.7)
-
Step 600
600
#6D51EC
oklch(55.5% 0.221 284.9)
-
Step 700
700
#5C40CD
oklch(49% 0.205 285)
-
Step 800
800
#4B36A6
oklch(42.7% 0.171 285.2)
-
Step 900
900 (this color)
#3A2D7F
oklch(36.3% 0.132 284.9)
-
Step 950
950
#241E4D
oklch(27.1% 0.084 285.2)
#3A2D7F 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) | #003D82 | 0.065 |
| Deuteranopia (no green cones) | #00387D | 0.062 |
| Tritanopia (no blue cones) | #1E4151 | 0.112 |
| Achromatopsia (no color) | #3B3B3B | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A2D7F
#3A2D7F
oklch(36.3% 0.132 284.9)
- #444000
#444000
oklch(36.4% 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 #3A2D7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Blueberry #464196 ΔE 0.066
- Indigo #4B0082 ΔE 0.069
- Twilight Blue #0A437A ΔE 0.073
- Cobalt #1E488F ΔE 0.076
- Marine Blue #01386A ΔE 0.076
- Imperial Purple #480CA8 ΔE 0.080
- Midnight Blue #191970 ΔE 0.081
Use #3A2D7F 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.