#573397
Closest named color: Rebecca Purple (#663399). oklch(42.2% 0.156 295.5), rgb(87, 51, 151).
Aa
White text reads best on this color (9.02:1).
About this color
#573397 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.156 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.029 away. White text reads best on it, at 9.02:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.32:1 |
| White text | 9.02:1 |
Values
| HEX | #573397 |
| RGB | rgb(87, 51, 151) |
| HSL | hsl(262, 50%, 40%) |
| OKLCH | oklch(42.2% 0.156 295.5) |
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 #573397 | 9.02:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #573397 | 2.32:1 | Fails | Lc 13.7 | Not readable |
| #573397 text on white | 9.02:1 | AAA | Lc 90.2 | Preferred for body text |
| #573397 text on black | 2.32:1 | Fails | Lc -12.0 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7FA
oklch(93.7% 0.026 295.5)
-
Step 200
200
#DBD3F8
oklch(88.5% 0.051 295.2)
-
Step 300
300
#C5B5F5
oklch(80.9% 0.091 295.8)
-
Step 400
400
#A88CF1
oklch(70.7% 0.146 295.2)
-
Step 500
500
#956BEB
oklch(63% 0.186 295.7)
-
Step 600
600
#804FDA
oklch(55.6% 0.202 295.2)
-
Step 700
700
#6D3EBD
oklch(49.1% 0.189 295.6)
-
Step 800
800 (this color)
#573397
oklch(42.2% 0.156 295.5)
-
Step 900
900
#482F7A
oklch(37.6% 0.122 295.3)
-
Step 950
950
#2A1D47
oklch(27.1% 0.076 295.1)
#573397 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) | #004A9A | 0.101 |
| Deuteranopia (no green cones) | #004795 | 0.101 |
| Tritanopia (no blue cones) | #464A60 | 0.121 |
| Achromatopsia (no color) | #494949 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573397
#573397
oklch(42.2% 0.156 295.5)
- #4C5300
#4C5300
oklch(42.1% 0.096 115.2)
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 #573397, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.029
- Dark Slate Blue #483D8B ΔE 0.039
- Blueberry #464196 ΔE 0.041
- Chrysanthemum #560BAD ΔE 0.063
- Imperial Purple #480CA8 ΔE 0.071
- Blue With A Hint Of Purple #533CC6 ΔE 0.078
- Twilight #4E518B ΔE 0.080
- Grape #7209B7 ΔE 0.082
Use #573397 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.