#553363
Closest named color: Grape Purple (#5D1451). oklch(38.3% 0.088 315.4), rgb(85, 51, 99).
Aa
White text reads best on this color (10.29:1).
About this color
#553363 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.088 and its hue 315°. 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 10.29:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.088) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 2.03:1 |
| White text | 10.29:1 |
Values
| HEX | #553363 |
| RGB | rgb(85, 51, 99) |
| HSL | hsl(283, 32%, 29%) |
| OKLCH | oklch(38.3% 0.088 315.4) |
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 #553363 | 10.29:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #553363 | 2.03:1 | Fails | Lc 10.2 | Not readable |
| #553363 text on white | 10.29:1 | AAA | Lc 93.7 | Preferred for body text |
| #553363 text on black | 2.03:1 | Fails | Lc -8.8 | 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
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#EFE6F3
oklch(93.6% 0.02 315.7)
-
Step 200
200
#E3D2EA
oklch(88.5% 0.037 316.2)
-
Step 300
300
#D1B4DE
oklch(80.8% 0.066 315.4)
-
Step 400
400
#BA8CCE
oklch(70.7% 0.106 315.3)
-
Step 500
500
#A86EC1
oklch(63.1% 0.135 315.1)
-
Step 600
600
#9354AD
oklch(55.5% 0.147 315.2)
-
Step 700
700
#7E4495
oklch(49.2% 0.138 315.5)
-
Step 800
800
#663879
oklch(42.6% 0.115 315.2)
-
Step 900
900 (this color)
#553363
oklch(38.3% 0.088 315.4)
-
Step 950
950
#311D39
oklch(27% 0.057 315.8)
#553363 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) | #2A3E65 | 0.075 |
| Deuteranopia (no green cones) | #334162 | 0.067 |
| Tritanopia (no blue cones) | #543A46 | 0.059 |
| Achromatopsia (no color) | #404040 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #553363
#553363
oklch(38.3% 0.088 315.4)
- #2D4D19
#2D4D19
oklch(38.2% 0.088 135.3)
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 #553363, 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 0.072
- Purple Brown #673A3F ΔE 0.080
- Dark Grey Blue #29465B ΔE 0.089
- Velvet #750851 ΔE 0.090
- Rich Purple #720058 ΔE 0.090
- Blueberry #464196 ΔE 0.091
- Charcoal Grey #3C4142 ΔE 0.091
Use #553363 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.