#56397C
Closest named color: Dark Slate Blue (#483D8B). oklch(41.1% 0.111 301.7), rgb(86, 57, 124).
Aa
White text reads best on this color (9.24:1).
About this color
#56397C is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.111 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.035 away. White text reads best on it, at 9.24:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.27:1 |
| White text | 9.24:1 |
Values
| HEX | #56397C |
| RGB | rgb(86, 57, 124) |
| HSL | hsl(266, 37%, 35%) |
| OKLCH | oklch(41.1% 0.111 301.7) |
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 #56397C | 9.24:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #56397C | 2.27:1 | Fails | Lc 12.9 | Not readable |
| #56397C text on white | 9.24:1 | AAA | Lc 91.1 | Preferred for body text |
| #56397C text on black | 2.27:1 | Fails | Lc -11.3 | 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
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DDD4EE
oklch(88.5% 0.037 301.4)
-
Step 300
300
#C8B7E4
oklch(80.8% 0.065 302.2)
-
Step 400
400
#AC91D7
oklch(70.7% 0.104 301.5)
-
Step 500
500
#9874CC
oklch(63% 0.133 301.6)
-
Step 600
600
#835BB9
oklch(55.6% 0.145 301.5)
-
Step 700
700
#6F4A9F
oklch(49% 0.135 301.7)
-
Step 800
800 (this color)
#56397C
oklch(41.1% 0.111 301.7)
-
Step 900
900
#4A3568
oklch(37.7% 0.087 301.3)
-
Step 950
950
#2B1F3D
oklch(26.9% 0.056 301.2)
#56397C 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) | #22477E | 0.080 |
| Deuteranopia (no green cones) | #2A477A | 0.074 |
| Tritanopia (no blue cones) | #4F4655 | 0.084 |
| Achromatopsia (no color) | #474747 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #56397C
#56397C
oklch(41.1% 0.111 301.7)
- #425200
#425200
oklch(41% 0.099 121.7)
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 #56397C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.035
- Blueberry #464196 ΔE 0.052
- Rebecca Purple #663399 ΔE 0.058
- Twilight #4E518B ΔE 0.065
- Dusk #4E5481 ΔE 0.073
- Cobalt #1E488F ΔE 0.085
- Dusty Grape #545775 ΔE 0.088
- Dusk Blue #26538D ΔE 0.091
Use #56397C 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.