#3A2A7A
Closest named color: Dark Slate Blue (#483D8B). oklch(35.3% 0.13 287), rgb(58, 42, 122).
Aa
White text reads best on this color (11.71:1).
About this color
#3A2A7A is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.130 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.061 away. White text reads best on it, at 11.71:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.79:1 |
| White text | 11.71:1 |
Values
| HEX | #3A2A7A |
| RGB | rgb(58, 42, 122) |
| HSL | hsl(252, 49%, 32%) |
| OKLCH | oklch(35.3% 0.13 287) |
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 #3A2A7A | 11.71:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #3A2A7A | 1.79:1 | Fails | Lc 7.4 | Not readable |
| #3A2A7A text on white | 11.71:1 | AAA | Lc 96.5 | Preferred for body text |
| #3A2A7A text on black | 1.79:1 | 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
#E8E7FC
oklch(93.5% 0.028 288)
-
Step 200
200
#D6D4FC
oklch(88.4% 0.055 287.5)
-
Step 300
300
#BCB7FD
oklch(80.9% 0.098 287.3)
-
Step 400
400
#9B8FFC
oklch(70.7% 0.156 286.7)
-
Step 500
500
#866EF9
oklch(63.1% 0.199 287.2)
-
Step 600
600
#7151E8
oklch(55.6% 0.216 286.8)
-
Step 700
700
#6040CA
oklch(49.1% 0.202 287.1)
-
Step 800
800
#4E36A3
oklch(42.7% 0.167 287.2)
-
Step 900
900 (this color)
#3A2A7A
oklch(35.3% 0.13 287)
-
Step 950
950
#251E4C
oklch(27.1% 0.082 286.6)
#3A2A7A 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) | #003A7D | 0.067 |
| Deuteranopia (no green cones) | #003678 | 0.066 |
| Tritanopia (no blue cones) | #233D4E | 0.106 |
| Achromatopsia (no color) | #383838 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A2A7A
#3A2A7A
oklch(35.3% 0.13 287)
- #403E00
#403E00
oklch(35.4% 0.076 107.7)
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 #3A2A7A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.061
- Indigo #4B0082 ΔE 0.065
- Royal Purple #4B006E ΔE 0.074
- Midnight Blue #191970 ΔE 0.075
- Marine Blue #01386A ΔE 0.075
- Blueberry #464196 ΔE 0.076
- Twilight Blue #0A437A ΔE 0.078
- Marine #042E60 ΔE 0.082
Use #3A2A7A 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.