#5B2D9C
Closest named color: Rebecca Purple (#663399). oklch(42.2% 0.17 297.5), rgb(91, 45, 156).
Aa
White text reads best on this color (9.12:1).
About this color
#5B2D9C is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.170 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.027 away. White text reads best on it, at 9.12:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.170) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.30:1 |
| White text | 9.12:1 |
Values
| HEX | #5B2D9C |
| RGB | rgb(91, 45, 156) |
| HSL | hsl(265, 55%, 39%) |
| OKLCH | oklch(42.2% 0.17 297.5) |
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 #5B2D9C | 9.12:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #5B2D9C | 2.30:1 | Fails | Lc 13.6 | Not readable |
| #5B2D9C text on white | 9.12:1 | AAA | Lc 90.3 | Preferred for body text |
| #5B2D9C text on black | 2.30:1 | Fails | Lc -12.0 | 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 800.
-
Step 50
50
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#ECE6FB
oklch(93.6% 0.029 298.9)
-
Step 200
200
#DDD2FA
oklch(88.5% 0.056 297.8)
-
Step 300
300
#C8B3F9
oklch(80.9% 0.1 297.9)
-
Step 400
400
#AD88F6
oklch(70.7% 0.159 297.7)
-
Step 500
500
#9A65F2
oklch(63% 0.203 297.6)
-
Step 600
600
#8647E1
oklch(55.7% 0.221 297.4)
-
Step 700
700
#7236C3
oklch(49.1% 0.205 297.7)
-
Step 800
800 (this color)
#5B2D9C
oklch(42.2% 0.17 297.5)
-
Step 900
900
#4B2C7D
oklch(37.7% 0.131 297.3)
-
Step 950
950
#2C1B49
oklch(27.1% 0.083 297.7)
#5B2D9C 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) | #00489F | 0.111 |
| Deuteranopia (no green cones) | #00479A | 0.112 |
| Tritanopia (no blue cones) | #4B4861 | 0.129 |
| Achromatopsia (no color) | #484848 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B2D9C
#5B2D9C
oklch(42.2% 0.17 297.5)
- #4A5400
#4A5400
oklch(42.2% 0.098 117.4)
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 #5B2D9C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.027
- Chrysanthemum #560BAD ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.054
- Blueberry #464196 ΔE 0.055
- Imperial Purple #480CA8 ΔE 0.064
- Grape #7209B7 ΔE 0.067
- Blue With A Hint Of Purple #533CC6 ΔE 0.076
- Bluey Purple #6241C7 ΔE 0.081
Use #5B2D9C 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.