#57348B
Closest named color: Dark Slate Blue (#483D8B). oklch(41.4% 0.139 298.7), rgb(87, 52, 139).
Aa
White text reads best on this color (9.25:1).
About this color
#57348B is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.139 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 0.032 away. White text reads best on it, at 9.25:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.26:1 |
| White text | 9.25:1 |
Values
| HEX | #57348B |
| RGB | rgb(87, 52, 139) |
| HSL | hsl(264, 46%, 37%) |
| OKLCH | oklch(41.4% 0.139 298.7) |
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 #57348B | 9.25:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #57348B | 2.26:1 | Fails | Lc 13.0 | Not readable |
| #57348B text on white | 9.25:1 | AAA | Lc 90.9 | Preferred for body text |
| #57348B text on black | 2.26:1 | Fails | Lc -11.4 | 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 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
#DDD3F4
oklch(88.5% 0.046 299.3)
-
Step 300
300
#C7B6EF
oklch(81% 0.081 298.2)
-
Step 400
400
#AC8DE6
oklch(70.7% 0.13 299.1)
-
Step 500
500
#986EDF
oklch(63.1% 0.167 298.7)
-
Step 600
600
#8353CC
oklch(55.5% 0.18 298.6)
-
Step 700
700
#6F43B1
oklch(49.1% 0.168 298.4)
-
Step 800
800 (this color)
#57348B
oklch(41.4% 0.139 298.7)
-
Step 900
900
#4A3172
oklch(37.6% 0.108 298.8)
-
Step 950
950
#2B1D43
oklch(26.9% 0.07 298.6)
#57348B 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) | #00478E | 0.102 |
| Deuteranopia (no green cones) | #114689 | 0.096 |
| Tritanopia (no blue cones) | #4B475A | 0.107 |
| Achromatopsia (no color) | #474747 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57348B
#57348B
oklch(41.4% 0.139 298.7)
- #465200
#465200
oklch(41.3% 0.097 119)
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 #57348B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.032
- Rebecca Purple #663399 ΔE 0.036
- Blueberry #464196 ΔE 0.043
- Twilight #4E518B ΔE 0.075
- Chrysanthemum #560BAD ΔE 0.078
- Imperial Purple #480CA8 ΔE 0.083
- Indigo #4B0082 ΔE 0.085
- Cobalt #1E488F ΔE 0.088
Use #57348B 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.