#4A2F74
Closest named color: Dark Slate Blue (#483D8B). oklch(37.4% 0.114 298.8), rgb(74, 47, 116).
Aa
White text reads best on this color (10.76:1).
About this color
#4A2F74 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.114 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.049 away. White text reads best on it, at 10.76:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.94:1 |
| White text | 10.76:1 |
Values
| HEX | #4A2F74 |
| RGB | rgb(74, 47, 116) |
| HSL | hsl(263, 42%, 32%) |
| OKLCH | oklch(37.4% 0.114 298.8) |
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 #4A2F74 | 10.76:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #4A2F74 | 1.94:1 | Fails | Lc 9.2 | Not readable |
| #4A2F74 text on white | 10.76:1 | AAA | Lc 94.7 | Preferred for body text |
| #4A2F74 text on black | 1.94:1 | Fails | Lc -7.9 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#ECE7F9
oklch(93.7% 0.025 298.6)
-
Step 200
200
#DDD3F5
oklch(88.5% 0.047 298.9)
-
Step 300
300
#C8B5F1
oklch(81% 0.086 299)
-
Step 400
400
#AC8CEA
oklch(70.7% 0.137 298.5)
-
Step 500
500
#996CE3
oklch(63.1% 0.175 298.7)
-
Step 600
600
#8550D1
oklch(55.6% 0.191 299)
-
Step 700
700
#7140B5
oklch(49.2% 0.177 299)
-
Step 800
800
#5B3693
oklch(42.7% 0.147 298.3)
-
Step 900
900 (this color)
#4A2F74
oklch(37.4% 0.114 298.8)
-
Step 950
950
#2C1D44
oklch(27.1% 0.071 299.4)
#4A2F74 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) | #0E3E76 | 0.083 |
| Deuteranopia (no green cones) | #193D72 | 0.076 |
| Tritanopia (no blue cones) | #413D4C | 0.089 |
| Achromatopsia (no color) | #3E3E3E | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A2F74
#4A2F74
oklch(37.4% 0.114 298.8)
- #3C4700
#3C4700
oklch(37.5% 0.088 119.2)
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 #4A2F74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.049
- Blueberry #464196 ΔE 0.069
- Indigo #4B0082 ΔE 0.074
- Royal Purple #4B006E ΔE 0.077
- Rebecca Purple #663399 ΔE 0.081
- Grape Purple #5D1451 ΔE 0.084
- Twilight Blue #0A437A ΔE 0.088
- Cobalt #1E488F ΔE 0.090
Use #4A2F74 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.