#55417E
Closest named color: Dark Slate Blue (#483D8B). oklch(42.6% 0.1 297.1), rgb(85, 65, 126).
Aa
White text reads best on this color (8.59:1).
About this color
#55417E is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.100 and its hue 297°. 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 8.59:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.44:1 |
| White text | 8.59:1 |
Values
| HEX | #55417E |
| RGB | rgb(85, 65, 126) |
| HSL | hsl(260, 32%, 37%) |
| OKLCH | oklch(42.6% 0.1 297.1) |
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 #55417E | 8.59:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #55417E | 2.44:1 | Fails | Lc 14.6 | Not readable |
| #55417E text on white | 8.59:1 | AAA | Lc 89.4 | Fine for body text |
| #55417E text on black | 2.44:1 | Fails | Lc -12.8 | 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
#EBE8F4
oklch(93.7% 0.016 297.5)
-
Step 200
200
#DBD5EC
oklch(88.5% 0.032 297.7)
-
Step 300
300
#C4B9E2
oklch(80.8% 0.058 297.4)
-
Step 400
400
#A794D4
oklch(70.7% 0.094 297.6)
-
Step 500
500
#9179C8
oklch(63.1% 0.118 296.9)
-
Step 600
600
#7C60B5
oklch(55.5% 0.13 297.2)
-
Step 700
700
#694F9C
oklch(49.1% 0.121 297.3)
-
Step 800
800 (this color)
#55417E
oklch(42.6% 0.1 297.1)
-
Step 900
900
#463866
oklch(37.8% 0.078 296.5)
-
Step 950
950
#29213B
oklch(27% 0.048 297.2)
#55417E 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) | #2D4C80 | 0.062 |
| Deuteranopia (no green cones) | #314B7D | 0.058 |
| Tritanopia (no blue cones) | #4C4C59 | 0.079 |
| Achromatopsia (no color) | #4C4C4C | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55417E
#55417E
oklch(42.6% 0.1 297.1)
- #4B5500
#4B5500
oklch(42.6% 0.098 117.3)
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 #55417E, 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
- Twilight #4E518B ΔE 0.045
- Blueberry #464196 ΔE 0.047
- Dusk #4E5481 ΔE 0.053
- Rebecca Purple #663399 ΔE 0.064
- Dusty Grape #545775 ΔE 0.068
- Dusk Blue #26538D ΔE 0.075
- Cobalt #1E488F ΔE 0.077
Use #55417E 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.