#575591
Closest named color: Twilight (#4E518B). oklch(47.9% 0.095 283.7), rgb(87, 85, 145).
Aa
White text reads best on this color (6.74:1).
About this color
#575591 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 48%, its chroma 0.095 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.020 away. White text reads best on it, at 6.74:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.11:1 |
| White text | 6.74:1 |
Values
| HEX | #575591 |
| RGB | rgb(87, 85, 145) |
| HSL | hsl(242, 26%, 45%) |
| OKLCH | oklch(47.9% 0.095 283.7) |
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 #575591 | 6.74:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #575591 | 3.11:1 | AA large text | Lc 20.9 | Dividers and decoration only |
| #575591 text on white | 6.74:1 | AA | Lc 83.2 | Fine for body text |
| #575591 text on black | 3.11:1 | AA large text | Lc -18.8 | Dividers and decoration only |
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 700.
-
Step 50
50
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E8E9F3
oklch(93.6% 0.013 281.6)
-
Step 200
200
#D6D7EA
oklch(88.4% 0.026 283.4)
-
Step 300
300
#BCBDDE
oklch(80.8% 0.046 283.9)
-
Step 400
400
#9A9BCE
oklch(70.7% 0.074 283.5)
-
Step 500
500
#8282C1
oklch(63.2% 0.094 283.4)
-
Step 600
600
#6C6AAD
oklch(55.5% 0.103 283.9)
-
Step 700
700 (this color)
#575591
oklch(47.9% 0.095 283.7)
-
Step 800
800
#4A4879
oklch(42.6% 0.08 284.3)
-
Step 900
900
#3D3D61
oklch(37.7% 0.061 283.1)
-
Step 950
950
#242439
oklch(27.1% 0.039 283.5)
#575591 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) | #415D93 | 0.035 |
| Deuteranopia (no green cones) | #3E5A90 | 0.036 |
| Tritanopia (no blue cones) | #46616C | 0.082 |
| Achromatopsia (no color) | #5B5B5B | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #575591
#575591
oklch(47.9% 0.095 283.7)
- #675F0F
#675F0F
oklch(47.9% 0.095 103.3)
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 #575591, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.020
- Dusk #4E5481 ΔE 0.030
- Dusky Blue #475F94 ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.039
- Dusty Grape #545775 ΔE 0.049
- Denim #3B638C ΔE 0.053
- Light Navy Blue #2E5A88 ΔE 0.056
- YInMn Blue #415A77 ΔE 0.058
Use #575591 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.