#553AAB
Closest named color: Blue With A Hint Of Purple (#533CC6). oklch(44.6% 0.171 288.4), rgb(85, 58, 171).
Aa
White text reads best on this color (8.14:1).
About this color
#553AAB is a dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.171 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Blue With A Hint Of Purple (#533CC6), ΔE 0.044 away. White text reads best on it, at 8.14:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | vivid (0.171) |
| Temperature | cool |
| Nearest name | Blue With A Hint Of Purple (#533CC6) |
| Black text | 2.57:1 |
| White text | 8.14:1 |
Values
| HEX | #553AAB |
| RGB | rgb(85, 58, 171) |
| HSL | hsl(254, 49%, 45%) |
| OKLCH | oklch(44.6% 0.171 288.4) |
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 #553AAB | 8.14:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #553AAB | 2.57:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #553AAB text on white | 8.14:1 | AAA | Lc 87.6 | Fine for body text |
| #553AAB text on black | 2.57:1 | Fails | Lc -14.5 | 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 800.
-
Step 50
50
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E8E7FD
oklch(93.5% 0.03 287.9)
-
Step 200
200
#D7D4FD
oklch(88.5% 0.056 288.5)
-
Step 300
300
#BDB6FE
oklch(80.8% 0.101 288.4)
-
Step 400
400
#9E8DFD
oklch(70.7% 0.16 288.6)
-
Step 500
500
#896CFB
oklch(63.2% 0.204 288.5)
-
Step 600
600
#754EEA
oklch(55.6% 0.222 288.5)
-
Step 700
700
#633DCC
oklch(49.2% 0.207 288.5)
-
Step 800
800 (this color)
#553AAB
oklch(44.6% 0.171 288.4)
-
Step 900
900
#422F83
oklch(37.7% 0.135 288.7)
-
Step 950
950
#261D4C
oklch(27% 0.083 288.3)
#553AAB 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) | #0052AF | 0.091 |
| Deuteranopia (no green cones) | #004CA9 | 0.088 |
| Tritanopia (no blue cones) | #37566D | 0.141 |
| Achromatopsia (no color) | #4F4F4F | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #553AAB
#553AAB
oklch(44.6% 0.171 288.4)
- #595800
#595800
oklch(44.7% 0.097 109)
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 #553AAB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue With A Hint Of Purple #533CC6 ΔE 0.044
- Blueberry #464196 ΔE 0.044
- Rebecca Purple #663399 ΔE 0.045
- Bluey Purple #6241C7 ΔE 0.052
- Blurple #5539CC ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.057
- Majorelle Blue #3F37C9 ΔE 0.061
- Chrysanthemum #560BAD ΔE 0.065
Use #553AAB 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.