#573087
Closest named color: Dark Slate Blue (#483D8B). oklch(40.5% 0.14 301), rgb(87, 48, 135).
Aa
White text reads best on this color (9.64:1).
About this color
#573087 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.140 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.039 away. White text reads best on it, at 9.64:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.140) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.17:1 |
| White text | 9.64:1 |
Values
| HEX | #573087 |
| RGB | rgb(87, 48, 135) |
| HSL | hsl(267, 48%, 36%) |
| OKLCH | oklch(40.5% 0.14 301) |
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 #573087 | 9.64:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #573087 | 2.17:1 | Fails | Lc 12.1 | Not readable |
| #573087 text on white | 9.64:1 | AAA | Lc 91.9 | Preferred for body text |
| #573087 text on black | 2.17:1 | Fails | Lc -10.5 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#ECE7F8
oklch(93.7% 0.023 299.4)
-
Step 200
200
#DED3F3
oklch(88.6% 0.045 301.1)
-
Step 300
300
#C9B5EE
oklch(80.9% 0.082 300.6)
-
Step 400
400
#AF8CE5
oklch(70.7% 0.131 301.2)
-
Step 500
500
#9C6DDD
oklch(63.2% 0.167 301.1)
-
Step 600
600
#8752CB
oklch(55.7% 0.181 300.9)
-
Step 700
700
#7341AF
oklch(49.1% 0.169 301.3)
-
Step 800
800 (this color)
#573087
oklch(40.5% 0.14 301)
-
Step 900
900
#4C3071
oklch(37.6% 0.109 301.2)
-
Step 950
950
#2C1D42
oklch(26.9% 0.068 300.6)
#573087 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) | #00448A | 0.106 |
| Deuteranopia (no green cones) | #104485 | 0.101 |
| Tritanopia (no blue cones) | #4D4357 | 0.105 |
| Achromatopsia (no color) | #454545 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573087
#573087
oklch(40.5% 0.14 301)
- #425000
#425000
oklch(40.5% 0.097 120.5)
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 #573087, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.039
- Rebecca Purple #663399 ΔE 0.041
- Blueberry #464196 ΔE 0.052
- Indigo #4B0082 ΔE 0.077
- Chrysanthemum #560BAD ΔE 0.078
- Imperial Purple #480CA8 ΔE 0.082
- Twilight #4E518B ΔE 0.083
- Royal Purple #4B006E ΔE 0.091
Use #573087 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.