#3A2A85
Closest named color: Dark Slate Blue (#483D8B). oklch(36.3% 0.145 284.6), rgb(58, 42, 133).
Aa
White text reads best on this color (11.35:1).
About this color
#3A2A85 is a dark, vivid purple. In OKLCH its lightness is 36%, its chroma 0.145 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.055 away. White text reads best on it, at 11.35:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.84:1 |
| White text | 11.35:1 |
Values
| HEX | #3A2A85 |
| RGB | rgb(58, 42, 133) |
| HSL | hsl(251, 52%, 34%) |
| OKLCH | oklch(36.3% 0.145 284.6) |
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 #3A2A85 | 11.35:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #3A2A85 | 1.84:1 | Fails | Lc 8.2 | Not readable |
| #3A2A85 text on white | 11.35:1 | AAA | Lc 95.7 | Preferred for body text |
| #3A2A85 text on black | 1.84:1 | 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
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E7E7FF
oklch(93.5% 0.032 285.8)
-
Step 200
200
#D4D5FF
oklch(88.6% 0.058 284.1)
-
Step 300
300
#B9B8FF
oklch(80.9% 0.1 284.6)
-
Step 400
400
#9790FF
oklch(70.8% 0.159 284.4)
-
Step 500
500
#816EFF
oklch(63.1% 0.207 284.7)
-
Step 600
600
#6D4BF7
oklch(55.6% 0.241 284.4)
-
Step 700
700
#5C3AD7
oklch(49.1% 0.224 284.5)
-
Step 800
800
#4B32AE
oklch(42.8% 0.185 284.6)
-
Step 900
900 (this color)
#3A2A85
oklch(36.3% 0.145 284.6)
-
Step 950
950
#231C50
oklch(26.9% 0.092 284.5)
#3A2A85 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) | #003D88 | 0.067 |
| Deuteranopia (no green cones) | #003783 | 0.063 |
| Tritanopia (no blue cones) | #184153 | 0.122 |
| Achromatopsia (no color) | #3A3A3A | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A2A85
#3A2A85
oklch(36.3% 0.145 284.6)
- #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 #3A2A85, 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
- Indigo #4B0082 ΔE 0.064
- Blueberry #464196 ΔE 0.066
- Imperial Purple #480CA8 ΔE 0.069
- Indigo Blue #3A18B1 ΔE 0.075
- Sapphire #2138AB ΔE 0.076
- Cobalt #1E488F ΔE 0.079
- Twilight Blue #0A437A ΔE 0.080
Use #3A2A85 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.