#573075
Closest named color: Dark Slate Blue (#483D8B). oklch(39.2% 0.117 308), rgb(87, 48, 117).
Aa
White text reads best on this color (10.07:1).
About this color
#573075 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.117 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 10.07:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.08:1 |
| White text | 10.07:1 |
Values
| HEX | #573075 |
| RGB | rgb(87, 48, 117) |
| HSL | hsl(274, 42%, 32%) |
| OKLCH | oklch(39.2% 0.117 308) |
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 #573075 | 10.07:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #573075 | 2.08:1 | Fails | Lc 10.9 | Not readable |
| #573075 text on white | 10.07:1 | AAA | Lc 93.0 | Preferred for body text |
| #573075 text on black | 2.08:1 | Fails | Lc -9.4 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EEE6F7
oklch(93.6% 0.024 307)
-
Step 200
200
#E2D1F3
oklch(88.5% 0.049 307.8)
-
Step 300
300
#D0B2ED
oklch(80.9% 0.088 307.6)
-
Step 400
400
#B987E4
oklch(70.7% 0.141 307.9)
-
Step 500
500
#A865DC
oklch(63.1% 0.181 308.1)
-
Step 600
600
#9348C9
oklch(55.5% 0.196 308)
-
Step 700
700
#7D38AE
oklch(49% 0.183 307.8)
-
Step 800
800
#66308D
oklch(42.7% 0.151 308)
-
Step 900
900 (this color)
#573075
oklch(39.2% 0.117 308)
-
Step 950
950
#301A42
oklch(26.9% 0.075 307.5)
#573075 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) | #184077 | 0.097 |
| Deuteranopia (no green cones) | #274273 | 0.086 |
| Tritanopia (no blue cones) | #533D4D | 0.085 |
| Achromatopsia (no color) | #424242 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573075
#573075
oklch(39.2% 0.117 308)
- #354F00
#354F00
oklch(39.2% 0.103 128.1)
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 #573075, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Rebecca Purple #663399 ΔE 0.066
- Blueberry #464196 ΔE 0.070
- Grape Purple #5D1451 ΔE 0.078
- Indigo #4B0082 ΔE 0.083
- Royal Purple #4B006E ΔE 0.085
- Twilight #4E518B ΔE 0.088
- Rich Purple #720058 ΔE 0.092
Use #573075 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.