#56377E
Closest named color: Dark Slate Blue (#483D8B). oklch(40.9% 0.117 301.6), rgb(86, 55, 126).
Aa
White text reads best on this color (9.36:1).
About this color
#56377E is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.117 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 0.034 away. White text reads best on it, at 9.36:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.24:1 |
| White text | 9.36:1 |
Values
| HEX | #56377E |
| RGB | rgb(86, 55, 126) |
| HSL | hsl(266, 39%, 35%) |
| OKLCH | oklch(40.9% 0.117 301.6) |
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 #56377E | 9.36:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #56377E | 2.24:1 | Fails | Lc 12.6 | Not readable |
| #56377E text on white | 9.36:1 | AAA | Lc 91.4 | Preferred for body text |
| #56377E text on black | 2.24:1 | Fails | Lc -11.0 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DDD4EF
oklch(88.5% 0.038 300.8)
-
Step 300
300
#C8B7E6
oklch(80.9% 0.068 301.4)
-
Step 400
400
#AD90DA
oklch(70.7% 0.11 301.7)
-
Step 500
500
#9973D0
oklch(63.2% 0.14 301.4)
-
Step 600
600
#8459BC
oklch(55.5% 0.152 301.7)
-
Step 700
700
#7049A2
oklch(49.1% 0.14 301.7)
-
Step 800
800 (this color)
#56377E
oklch(40.9% 0.117 301.6)
-
Step 900
900
#4B346A
oklch(37.8% 0.092 301.8)
-
Step 950
950
#2C1F3E
oklch(27.1% 0.058 302)
#56377E 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) | #1C4680 | 0.086 |
| Deuteranopia (no green cones) | #26467C | 0.079 |
| Tritanopia (no blue cones) | #4E4555 | 0.089 |
| Achromatopsia (no color) | #474747 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #56377E
#56377E
oklch(40.9% 0.117 301.6)
- #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 #56377E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.034
- Blueberry #464196 ΔE 0.051
- Rebecca Purple #663399 ΔE 0.054
- Twilight #4E518B ΔE 0.069
- Dusk #4E5481 ΔE 0.078
- Cobalt #1E488F ΔE 0.087
- Indigo #4B0082 ΔE 0.093
- Dusk Blue #26538D ΔE 0.094
Use #56377E 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.