#4F2571
Closest named color: Royal Purple (#4B006E). oklch(36.2% 0.128 306.5), rgb(79, 37, 113).
Aa
White text reads best on this color (11.44:1).
About this color
#4F2571 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.128 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.055 away. White text reads best on it, at 11.44:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.83:1 |
| White text | 11.44:1 |
Values
| HEX | #4F2571 |
| RGB | rgb(79, 37, 113) |
| HSL | hsl(273, 51%, 29%) |
| OKLCH | oklch(36.2% 0.128 306.5) |
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 #4F2571 | 11.44:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #4F2571 | 1.83:1 | Fails | Lc 8.0 | Not readable |
| #4F2571 text on white | 11.44:1 | AAA | Lc 95.9 | Preferred for body text |
| #4F2571 text on black | 1.83:1 | 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
#F7F3FC
oklch(97% 0.013 306)
-
Step 100
100
#EEE5F9
oklch(93.5% 0.028 306)
-
Step 200
200
#E2D1F5
oklch(88.6% 0.052 306.6)
-
Step 300
300
#D0B1F2
oklch(80.9% 0.096 306.1)
-
Step 400
400
#B985EB
oklch(70.8% 0.153 306.4)
-
Step 500
500
#A861E4
oklch(63% 0.196 306.6)
-
Step 600
600
#9443D2
oklch(55.7% 0.212 306.7)
-
Step 700
700
#7E33B6
oklch(49.1% 0.197 306.6)
-
Step 800
800
#662C93
oklch(42.7% 0.163 306.5)
-
Step 900
900 (this color)
#4F2571
oklch(36.2% 0.128 306.5)
-
Step 950
950
#311945
oklch(27% 0.082 306.9)
#4F2571 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) | #003873 | 0.107 |
| Deuteranopia (no green cones) | #143A6F | 0.098 |
| Tritanopia (no blue cones) | #493547 | 0.092 |
| Achromatopsia (no color) | #3A3A3A | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F2571
#4F2571
oklch(36.2% 0.128 306.5)
- #314600
#314600
oklch(36.3% 0.093 126.5)
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 #4F2571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.055
- Indigo #4B0082 ΔE 0.058
- Grape Purple #5D1451 ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.069
- Plum Purple #4E0550 ΔE 0.076
- Rebecca Purple #663399 ΔE 0.085
- Blueberry #464196 ΔE 0.087
- Deep Violet #490648 ΔE 0.088
Use #4F2571 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.