#5B2CA3
Closest named color: Rebecca Purple (#663399). oklch(42.6% 0.179 295.9), rgb(91, 44, 163).
Aa
White text reads best on this color (8.99:1).
About this color
#5B2CA3 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.179 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.032 away. White text reads best on it, at 8.99:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.179) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.33:1 |
| White text | 8.99:1 |
Values
| HEX | #5B2CA3 |
| RGB | rgb(91, 44, 163) |
| HSL | hsl(264, 57%, 41%) |
| OKLCH | oklch(42.6% 0.179 295.9) |
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 #5B2CA3 | 8.99:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #5B2CA3 | 2.33:1 | Fails | Lc 14.1 | Not readable |
| #5B2CA3 text on white | 8.99:1 | AAA | Lc 89.9 | Fine for body text |
| #5B2CA3 text on black | 2.33:1 | Fails | Lc -12.4 | 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 800.
-
Step 50
50
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EBE6FC
oklch(93.5% 0.03 296.2)
-
Step 200
200
#DCD2FC
oklch(88.5% 0.058 296.1)
-
Step 300
300
#C6B3FD
oklch(80.9% 0.105 295.8)
-
Step 400
400
#AB87FC
oklch(70.7% 0.168 296)
-
Step 500
500
#9863F9
oklch(63% 0.214 295.9)
-
Step 600
600
#8443E8
oklch(55.5% 0.233 295.9)
-
Step 700
700
#7033CA
oklch(49.1% 0.216 295.7)
-
Step 800
800 (this color)
#5B2CA3
oklch(42.6% 0.179 295.9)
-
Step 900
900
#4A2A81
oklch(37.6% 0.139 295.9)
-
Step 950
950
#2B1A4C
oklch(27% 0.089 295.5)
#5B2CA3 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) | #004AA6 | 0.111 |
| Deuteranopia (no green cones) | #0047A1 | 0.110 |
| Tritanopia (no blue cones) | #484A65 | 0.136 |
| Achromatopsia (no color) | #494949 | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B2CA3
#5B2CA3
oklch(42.6% 0.179 295.9)
- #4D5500
#4D5500
oklch(42.8% 0.098 115.9)
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 #5B2CA3, closest first.
No curated palette has a color within ΔE 0.04 of #5B2CA3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.032
- Chrysanthemum #560BAD ΔE 0.044
- Blueberry #464196 ΔE 0.058
- Imperial Purple #480CA8 ΔE 0.059
- Grape #7209B7 ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.061
- Blue With A Hint Of Purple #533CC6 ΔE 0.066
- Blurple #5539CC ΔE 0.072
Use #5B2CA3 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.