#56399B
Closest named color: Rebecca Purple (#663399). oklch(43.3% 0.152 292.5), rgb(86, 57, 155).
Aa
White text reads best on this color (8.55:1).
About this color
#56399B is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.152 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.032 away. White text reads best on it, at 8.55:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.45:1 |
| White text | 8.55:1 |
Values
| HEX | #56399B |
| RGB | rgb(86, 57, 155) |
| HSL | hsl(258, 46%, 42%) |
| OKLCH | oklch(43.3% 0.152 292.5) |
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 #56399B | 8.55:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #56399B | 2.45:1 | Fails | Lc 15.0 | Not readable |
| #56399B text on white | 8.55:1 | AAA | Lc 89.0 | Fine for body text |
| #56399B text on black | 2.45:1 | Fails | Lc -13.2 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C2B6F6
oklch(80.9% 0.09 292.9)
-
Step 400
400
#A48EF1
oklch(70.7% 0.143 292.6)
-
Step 500
500
#8F6EEC
oklch(63% 0.182 292.4)
-
Step 600
600
#7B52DA
oklch(55.5% 0.198 292.7)
-
Step 700
700
#6842BD
oklch(49.1% 0.183 292.6)
-
Step 800
800 (this color)
#56399B
oklch(43.3% 0.152 292.5)
-
Step 900
900
#45317A
oklch(37.7% 0.119 292.4)
-
Step 950
950
#281E47
oklch(27% 0.074 292)
#56399B 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) | #004E9E | 0.094 |
| Deuteranopia (no green cones) | #004A99 | 0.094 |
| Tritanopia (no blue cones) | #424F64 | 0.122 |
| Achromatopsia (no color) | #4C4C4C | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #56399B
#56399B
oklch(43.3% 0.152 292.5)
- #525500
#525500
oklch(43.2% 0.096 112.1)
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 #56399B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.032
- Blueberry #464196 ΔE 0.032
- Dark Slate Blue #483D8B ΔE 0.037
- Blue With A Hint Of Purple #533CC6 ΔE 0.070
- Twilight #4E518B ΔE 0.070
- Chrysanthemum #560BAD ΔE 0.070
- Bluey Purple #6241C7 ΔE 0.075
- Imperial Purple #480CA8 ΔE 0.078
Use #56399B 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.