#56377D
Closest named color: Dark Slate Blue (#483D8B). oklch(40.8% 0.116 302), rgb(86, 55, 125).
Aa
White text reads best on this color (9.38:1).
About this color
#56377D is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.116 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 9.38:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.23:1 |
| White text | 9.38:1 |
Values
| HEX | #56377D |
| RGB | rgb(86, 55, 125) |
| HSL | hsl(267, 39%, 35%) |
| OKLCH | oklch(40.8% 0.116 302) |
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 #56377D | 9.38:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #56377D | 2.23:1 | Fails | Lc 12.5 | Not readable |
| #56377D text on white | 9.38:1 | AAA | Lc 91.4 | Preferred for body text |
| #56377D text on black | 2.23:1 | Fails | Lc -10.9 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
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
#C8B7E6
oklch(80.9% 0.068 301.4)
-
Step 400
400
#AD90D9
oklch(70.7% 0.108 302)
-
Step 500
500
#9973CE
oklch(63.1% 0.137 301.9)
-
Step 600
600
#845ABB
oklch(55.6% 0.149 301.7)
-
Step 700
700
#7049A1
oklch(49.1% 0.139 302)
-
Step 800
800 (this color)
#56377D
oklch(40.8% 0.116 302)
-
Step 900
900
#4B3469
oklch(37.7% 0.091 302.3)
-
Step 950
950
#2C1F3D
oklch(27% 0.056 302.8)
#56377D 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) | #1D467F | 0.085 |
| Deuteranopia (no green cones) | #27467B | 0.078 |
| Tritanopia (no blue cones) | #4F4454 | 0.087 |
| Achromatopsia (no color) | #464646 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #56377D
#56377D
oklch(40.8% 0.116 302)
- #415100
#415100
oklch(40.6% 0.098 121.8)
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 #56377D, 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 0.055
- Twilight #4E518B ΔE 0.069
- Dusk #4E5481 ΔE 0.078
- Cobalt #1E488F ΔE 0.087
- Dusty Grape #545775 ΔE 0.093
- Indigo #4B0082 ΔE 0.094
Use #56377D 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.