#4B2A78
Closest named color: Dark Slate Blue (#483D8B). oklch(37% 0.128 299.6), rgb(75, 42, 120).
Aa
White text reads best on this color (11.04:1).
About this color
#4B2A78 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.128 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.053 away. White text reads best on it, at 11.04:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.90:1 |
| White text | 11.04:1 |
Values
| HEX | #4B2A78 |
| RGB | rgb(75, 42, 120) |
| HSL | hsl(265, 48%, 32%) |
| OKLCH | oklch(37% 0.128 299.6) |
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 #4B2A78 | 11.04:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #4B2A78 | 1.90:1 | Fails | Lc 8.8 | Not readable |
| #4B2A78 text on white | 11.04:1 | AAA | Lc 95.1 | Preferred for body text |
| #4B2A78 text on black | 1.90:1 | Fails | Lc -7.5 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#ECE6FA
oklch(93.6% 0.027 299.5)
-
Step 200
200
#DED2F8
oklch(88.5% 0.053 299.7)
-
Step 300
300
#C9B3F6
oklch(80.9% 0.096 299.3)
-
Step 400
400
#AF88F1
oklch(70.6% 0.153 299.6)
-
Step 500
500
#9D66EC
oklch(63.1% 0.195 299.7)
-
Step 600
600
#8948DB
oklch(55.7% 0.213 299.7)
-
Step 700
700
#7438BE
oklch(49.1% 0.198 299.4)
-
Step 800
800
#5E309A
oklch(42.8% 0.164 299.2)
-
Step 900
900 (this color)
#4B2A78
oklch(37% 0.128 299.6)
-
Step 950
950
#2D1B48
oklch(27.1% 0.081 299.4)
#4B2A78 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) | #003C7A | 0.094 |
| Deuteranopia (no green cones) | #0A3B76 | 0.091 |
| Tritanopia (no blue cones) | #413B4D | 0.096 |
| Achromatopsia (no color) | #3C3C3C | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B2A78
#4B2A78
oklch(37% 0.128 299.6)
- #3B4600
#3B4600
oklch(37.1% 0.088 119.4)
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 #4B2A78, 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
- Indigo #4B0082 ΔE 0.060
- Royal Purple #4B006E ΔE 0.066
- Blueberry #464196 ΔE 0.072
- Rebecca Purple #663399 ΔE 0.078
- Grape Purple #5D1451 ΔE 0.084
- Imperial Purple #480CA8 ΔE 0.089
- Plum Purple #4E0550 ΔE 0.092
Use #4B2A78 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.