#5B3365
Closest named color: Grape Purple (#5D1451). oklch(39.2% 0.094 319.4), rgb(91, 51, 101).
Aa
White text reads best on this color (9.97:1).
About this color
#5B3365 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.094 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.068 away. White text reads best on it, at 9.97:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 2.10:1 |
| White text | 9.97:1 |
Values
| HEX | #5B3365 |
| RGB | rgb(91, 51, 101) |
| HSL | hsl(288, 33%, 30%) |
| OKLCH | oklch(39.2% 0.094 319.4) |
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 #5B3365 | 9.97:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #5B3365 | 2.10:1 | Fails | Lc 11.0 | Not readable |
| #5B3365 text on white | 9.97:1 | AAA | Lc 92.9 | Preferred for body text |
| #5B3365 text on black | 2.10:1 | Fails | Lc -9.6 | 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
#F8F3F9
oklch(97% 0.01 320.5)
-
Step 100
100
#F0E6F3
oklch(93.7% 0.02 318.4)
-
Step 200
200
#E5D1EA
oklch(88.5% 0.04 319.5)
-
Step 300
300
#D5B2DE
oklch(80.8% 0.072 319.3)
-
Step 400
400
#BF89CD
oklch(70.7% 0.113 319.2)
-
Step 500
500
#AF6AC0
oklch(63.2% 0.145 319.5)
-
Step 600
600
#9A4FAC
oklch(55.6% 0.158 319.6)
-
Step 700
700
#834094
oklch(49.2% 0.146 319.1)
-
Step 800
800
#6B3578
oklch(42.7% 0.121 319.5)
-
Step 900
900 (this color)
#5B3365
oklch(39.2% 0.094 319.4)
-
Step 950
950
#331C39
oklch(27.1% 0.06 319.1)
#5B3365 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) | #2B4067 | 0.084 |
| Deuteranopia (no green cones) | #364464 | 0.076 |
| Tritanopia (no blue cones) | #5B3A47 | 0.060 |
| Achromatopsia (no color) | #434343 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3365
#5B3365
oklch(39.2% 0.094 319.4)
- #28511C
#28511C
oklch(39.2% 0.094 139.2)
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 #5B3365, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.073
- Purple Brown #673A3F ΔE 0.078
- Velvet #750851 ΔE 0.083
- Rich Purple #720058 ΔE 0.084
- Brownish Purple #76424E ΔE 0.087
- Rebecca Purple #663399 ΔE 0.089
- Blueberry #464196 ΔE 0.091
Use #5B3365 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.