#55396D
Closest named color: Dark Slate Blue (#483D8B). oklch(40% 0.09 307.6), rgb(85, 57, 109).
Aa
White text reads best on this color (9.57:1).
About this color
#55396D is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.090 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.055 away. White text reads best on it, at 9.57:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.19:1 |
| White text | 9.57:1 |
Values
| HEX | #55396D |
| RGB | rgb(85, 57, 109) |
| HSL | hsl(272, 31%, 33%) |
| OKLCH | oklch(40% 0.09 307.6) |
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 #55396D | 9.57:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #55396D | 2.19:1 | Fails | Lc 11.9 | Not readable |
| #55396D text on white | 9.57:1 | AAA | Lc 92.0 | Preferred for body text |
| #55396D text on black | 2.19:1 | Fails | Lc -10.4 | 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 900.
-
Step 50
50
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F4
oklch(93.6% 0.018 306.7)
-
Step 200
200
#E0D3ED
oklch(88.5% 0.038 308)
-
Step 300
300
#CCB6E3
oklch(81% 0.067 307.1)
-
Step 400
400
#B38ED5
oklch(70.7% 0.108 307.7)
-
Step 500
500
#A070CA
oklch(63% 0.139 307.4)
-
Step 600
600
#8B57B6
oklch(55.6% 0.15 307.5)
-
Step 700
700
#76469D
oklch(49% 0.14 307.5)
-
Step 800
800
#603A7F
oklch(42.6% 0.116 307.6)
-
Step 900
900 (this color)
#55396D
oklch(40% 0.09 307.6)
-
Step 950
950
#2E1E3C
oklch(27% 0.058 307.5)
#55396D 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) | #2C446F | 0.068 |
| Deuteranopia (no green cones) | #34456C | 0.061 |
| Tritanopia (no blue cones) | #52414D | 0.066 |
| Achromatopsia (no color) | #454545 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55396D
#55396D
oklch(40% 0.09 307.6)
- #3A5013
#3A5013
oklch(39.9% 0.09 127.3)
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 #55396D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.055
- Blueberry #464196 ΔE 0.072
- Twilight #4E518B ΔE 0.074
- Dusk #4E5481 ΔE 0.076
- Rebecca Purple #663399 ΔE 0.081
- Dusty Grape #545775 ΔE 0.084
- Dark Grey Blue #29465B ΔE 0.086
- Purple Brown #673A3F ΔE 0.086
Use #55396D 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.