#5B3363
Closest named color: Grape Purple (#5D1451). oklch(39.1% 0.092 320.8), rgb(91, 51, 99).
Aa
White text reads best on this color (10.00:1).
About this color
#5B3363 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.092 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.067 away. White text reads best on it, at 10.00:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.092) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 2.09:1 |
| White text | 10.00:1 |
Values
| HEX | #5B3363 |
| RGB | rgb(91, 51, 99) |
| HSL | hsl(290, 32%, 29%) |
| OKLCH | oklch(39.1% 0.092 320.8) |
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 #5B3363 | 10.00:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #5B3363 | 2.09:1 | Fails | Lc 10.9 | Not readable |
| #5B3363 text on white | 10.00:1 | AAA | Lc 93.0 | Preferred for body text |
| #5B3363 text on black | 2.09:1 | Fails | Lc -9.5 | 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
#F0E6F2
oklch(93.6% 0.019 320.6)
-
Step 200
200
#E5D1E9
oklch(88.4% 0.039 320.6)
-
Step 300
300
#D5B3DC
oklch(80.9% 0.068 320.5)
-
Step 400
400
#C089CB
oklch(70.7% 0.111 320.7)
-
Step 500
500
#AF6ABD
oklch(63% 0.141 320.7)
-
Step 600
600
#9A50A9
oklch(55.6% 0.153 320.7)
-
Step 700
700
#844091
oklch(49.1% 0.143 321)
-
Step 800
800
#6B3676
oklch(42.8% 0.117 320.5)
-
Step 900
900 (this color)
#5B3363
oklch(39.1% 0.092 320.8)
-
Step 950
950
#331C38
oklch(27% 0.059 320.3)
#5B3363 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) | #2C3F65 | 0.083 |
| Deuteranopia (no green cones) | #374462 | 0.075 |
| Tritanopia (no blue cones) | #5C3946 | 0.057 |
| Achromatopsia (no color) | #424242 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3363
#5B3363
oklch(39.1% 0.092 320.8)
- #26511F
#26511F
oklch(39.1% 0.092 140.9)
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 #5B3363, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.067
- Purple Brown #673A3F ΔE 0.074
- Dark Slate Blue #483D8B ΔE 0.076
- Velvet #750851 ΔE 0.082
- Rich Purple #720058 ΔE 0.084
- Brownish Purple #76424E ΔE 0.085
- Rebecca Purple #663399 ΔE 0.092
- Blueberry #464196 ΔE 0.094
Use #5B3363 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.