#5B2573
Closest named color: Grape Purple (#5D1451). oklch(38% 0.134 313.7), rgb(91, 37, 115).
Aa
White text reads best on this color (10.73:1).
About this color
#5B2573 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.134 and its hue 314°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.063 away. White text reads best on it, at 10.73:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.95:1 |
| White text | 10.73:1 |
Values
| HEX | #5B2573 |
| RGB | rgb(91, 37, 115) |
| HSL | hsl(282, 51%, 30%) |
| OKLCH | oklch(38% 0.134 313.7) |
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 #5B2573 | 10.73:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #5B2573 | 1.95:1 | Fails | Lc 9.6 | Not readable |
| #5B2573 text on white | 10.73:1 | AAA | Lc 94.3 | Preferred for body text |
| #5B2573 text on black | 1.95:1 | Fails | Lc -8.3 | 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
#F9F3FC
oklch(97.1% 0.013 314.8)
-
Step 100
100
#F1E5F8
oklch(93.7% 0.028 313.4)
-
Step 200
200
#E7CFF4
oklch(88.6% 0.056 313.8)
-
Step 300
300
#D8ADEF
oklch(80.8% 0.102 313.6)
-
Step 400
400
#C47FE6
oklch(70.7% 0.161 313.7)
-
Step 500
500
#B559DF
oklch(63.1% 0.206 313.7)
-
Step 600
600
#A038CC
oklch(55.6% 0.223 313.7)
-
Step 700
700
#8928B1
oklch(49.1% 0.208 313.6)
-
Step 800
800
#6F248F
oklch(42.7% 0.172 313.5)
-
Step 900
900 (this color)
#5B2573
oklch(38% 0.134 313.7)
-
Step 950
950
#351743
oklch(27.1% 0.084 313.7)
#5B2573 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) | #013B75 | 0.126 |
| Deuteranopia (no green cones) | #213F71 | 0.109 |
| Tritanopia (no blue cones) | #593448 | 0.090 |
| Achromatopsia (no color) | #3E3E3E | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B2573
#5B2573
oklch(38% 0.134 313.7)
- #284E00
#284E00
oklch(38% 0.109 133.9)
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 #5B2573, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.063
- Royal Purple #4B006E ΔE 0.067
- Indigo #4B0082 ΔE 0.069
- Rebecca Purple #663399 ΔE 0.071
- Dark Slate Blue #483D8B ΔE 0.072
- Rich Purple #720058 ΔE 0.075
- Plum Purple #4E0550 ΔE 0.083
- Purple #800080 ΔE 0.083
Use #5B2573 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.