#575A8D
Closest named color: Dusky Blue (#475F94). oklch(48.7% 0.081 280.3), rgb(87, 90, 141).
Aa
White text reads best on this color (6.45:1).
About this color
#575A8D is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.081 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.025 away. White text reads best on it, at 6.45:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.25:1 |
| White text | 6.45:1 |
Values
| HEX | #575A8D |
| RGB | rgb(87, 90, 141) |
| HSL | hsl(237, 24%, 45%) |
| OKLCH | oklch(48.7% 0.081 280.3) |
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 #575A8D | 6.45:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #575A8D | 3.25:1 | AA large text | Lc 22.1 | Dividers and decoration only |
| #575A8D text on white | 6.45:1 | AA | Lc 82.0 | Fine for body text |
| #575A8D text on black | 3.25:1 | AA large text | Lc -19.9 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D6D8E8
oklch(88.5% 0.022 280.3)
-
Step 300
300
#BBBEDA
oklch(80.8% 0.039 280.6)
-
Step 400
400
#999DC8
oklch(70.8% 0.063 280.5)
-
Step 500
500
#8084BA
oklch(63.1% 0.081 280.5)
-
Step 600
600
#6A6DA6
oklch(55.6% 0.088 280.8)
-
Step 700
700 (this color)
#575A8D
oklch(48.7% 0.081 280.3)
-
Step 800
800
#484B73
oklch(42.8% 0.066 279.9)
-
Step 900
900
#3C3E5D
oklch(37.6% 0.053 280.7)
-
Step 950
950
#232537
oklch(27.1% 0.034 279)
#575A8D 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) | #4A608F | 0.023 |
| Deuteranopia (no green cones) | #475C8C | 0.023 |
| Tritanopia (no blue cones) | #48646D | 0.071 |
| Achromatopsia (no color) | #5E5E5E | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #575A8D
#575A8D
oklch(48.7% 0.081 280.3)
- #6A6124
#6A6124
oklch(48.8% 0.082 100.9)
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 #575A8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.025
- Dusk #4E5481 ΔE 0.028
- Twilight #4E518B ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.037
- Dusty Grape #545775 ΔE 0.039
- Denim #3B638C ΔE 0.042
- YInMn Blue #415A77 ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.052
Use #575A8D 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.