#5533A4
Closest named color: Rebecca Purple (#663399). oklch(43% 0.171 291.3), rgb(85, 51, 164).
Aa
White text reads best on this color (8.76:1).
About this color
#5533A4 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.171 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.038 away. White text reads best on it, at 8.76:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.171) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.39:1 |
| White text | 8.76:1 |
Values
| HEX | #5533A4 |
| RGB | rgb(85, 51, 164) |
| HSL | hsl(258, 53%, 42%) |
| OKLCH | oklch(43% 0.171 291.3) |
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 #5533A4 | 8.76:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #5533A4 | 2.39:1 | Fails | Lc 14.6 | Not readable |
| #5533A4 text on white | 8.76:1 | AAA | Lc 89.4 | Fine for body text |
| #5533A4 text on black | 2.39:1 | Fails | Lc -12.8 | 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 800.
-
Step 50
50
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FC
oklch(93.6% 0.028 290.2)
-
Step 200
200
#D9D3FC
oklch(88.5% 0.056 291.9)
-
Step 300
300
#C1B5FD
oklch(80.9% 0.101 291.6)
-
Step 400
400
#A38BFC
oklch(70.7% 0.162 291.5)
-
Step 500
500
#8E69F9
oklch(63% 0.206 291.2)
-
Step 600
600
#7B4BE8
oklch(55.6% 0.223 291.5)
-
Step 700
700
#683BCA
oklch(49.2% 0.207 291.3)
-
Step 800
800 (this color)
#5533A4
oklch(43% 0.171 291.3)
-
Step 900
900
#452E81
oklch(37.7% 0.133 291.5)
-
Step 950
950
#281C4C
oklch(27% 0.085 291.2)
#5533A4 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) | #004DA7 | 0.097 |
| Deuteranopia (no green cones) | #0048A2 | 0.095 |
| Tritanopia (no blue cones) | #3C4F67 | 0.137 |
| Achromatopsia (no color) | #4B4B4B | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5533A4
#5533A4
oklch(43% 0.171 291.3)
- #525400
#525400
oklch(43% 0.095 111.4)
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 #5533A4, closest first.
No curated palette has a color within ΔE 0.04 of #5533A4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.038
- Blueberry #464196 ΔE 0.044
- Dark Slate Blue #483D8B ΔE 0.051
- Chrysanthemum #560BAD ΔE 0.052
- Blue With A Hint Of Purple #533CC6 ΔE 0.058
- Imperial Purple #480CA8 ΔE 0.062
- Blurple #5539CC ΔE 0.066
- Bluey Purple #6241C7 ΔE 0.068
Use #5533A4 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.