#5B2574
Closest named color: Grape Purple (#5D1451). oklch(38% 0.135 313.3), rgb(91, 37, 116).
Aa
White text reads best on this color (10.70:1).
About this color
#5B2574 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.135 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.064 away. White text reads best on it, at 10.70:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.96:1 |
| White text | 10.70:1 |
Values
| HEX | #5B2574 |
| RGB | rgb(91, 37, 116) |
| HSL | hsl(281, 52%, 30%) |
| OKLCH | oklch(38% 0.135 313.3) |
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 #5B2574 | 10.70:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #5B2574 | 1.96:1 | Fails | Lc 9.7 | Not readable |
| #5B2574 text on white | 10.70:1 | AAA | Lc 94.2 | Preferred for body text |
| #5B2574 text on black | 1.96:1 | 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
#C47FE7
oklch(70.7% 0.162 313.4)
-
Step 500
500
#B459E0
oklch(63.1% 0.207 313.1)
-
Step 600
600
#A037CE
oklch(55.6% 0.226 313.2)
-
Step 700
700
#8927B2
oklch(49.1% 0.21 313.3)
-
Step 800
800
#6F2390
oklch(42.6% 0.174 313.3)
-
Step 900
900 (this color)
#5B2574
oklch(38% 0.135 313.3)
-
Step 950
950
#351643
oklch(26.9% 0.086 313.9)
#5B2574 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) | #003B76 | 0.127 |
| Deuteranopia (no green cones) | #203F72 | 0.110 |
| Tritanopia (no blue cones) | #583449 | 0.090 |
| Achromatopsia (no color) | #3E3E3E | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B2574
#5B2574
oklch(38% 0.135 313.3)
- #294E00
#294E00
oklch(38.1% 0.108 133.5)
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 #5B2574, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.064
- Royal Purple #4B006E ΔE 0.067
- Indigo #4B0082 ΔE 0.068
- Rebecca Purple #663399 ΔE 0.070
- Dark Slate Blue #483D8B ΔE 0.071
- Rich Purple #720058 ΔE 0.076
- Purple #800080 ΔE 0.083
- Plum Purple #4E0550 ΔE 0.084
Use #5B2574 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.