#57417C
Closest named color: Dark Slate Blue (#483D8B). oklch(42.7% 0.097 299.5), rgb(87, 65, 124).
Aa
White text reads best on this color (8.56:1).
About this color
#57417C is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.097 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.040 away. White text reads best on it, at 8.56:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.45:1 |
| White text | 8.56:1 |
Values
| HEX | #57417C |
| RGB | rgb(87, 65, 124) |
| HSL | hsl(262, 31%, 37%) |
| OKLCH | oklch(42.7% 0.097 299.5) |
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 #57417C | 8.56:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #57417C | 2.45:1 | Fails | Lc 14.7 | Not readable |
| #57417C text on white | 8.56:1 | AAA | Lc 89.3 | Fine for body text |
| #57417C text on black | 2.45:1 | Fails | Lc -12.9 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE8F4
oklch(93.7% 0.016 297.5)
-
Step 200
200
#DCD5EC
oklch(88.6% 0.032 299.6)
-
Step 300
300
#C5B9E1
oklch(80.9% 0.057 298.8)
-
Step 400
400
#A994D2
oklch(70.8% 0.092 299.6)
-
Step 500
500
#9478C5
oklch(63% 0.116 299.8)
-
Step 600
600
#7F60B2
oklch(55.6% 0.127 299.7)
-
Step 700
700
#6B4F99
oklch(49.1% 0.117 299.5)
-
Step 800
800 (this color)
#57417C
oklch(42.7% 0.097 299.5)
-
Step 900
900
#483864
oklch(37.9% 0.075 299.6)
-
Step 950
950
#2A213A
oklch(27% 0.047 299.9)
#57417C 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) | #2F4C7E | 0.063 |
| Deuteranopia (no green cones) | #344C7B | 0.059 |
| Tritanopia (no blue cones) | #504C58 | 0.077 |
| Achromatopsia (no color) | #4C4C4C | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57417C
#57417C
oklch(42.7% 0.097 299.5)
- #495606
#495606
oklch(42.7% 0.098 119.5)
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 #57417C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.040
- Twilight #4E518B ΔE 0.047
- Blueberry #464196 ΔE 0.052
- Dusk #4E5481 ΔE 0.053
- Rebecca Purple #663399 ΔE 0.065
- Dusty Grape #545775 ΔE 0.067
- Dusk Blue #26538D ΔE 0.078
- YInMn Blue #415A77 ΔE 0.079
Use #57417C 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.