#55376D
Closest named color: Dark Slate Blue (#483D8B). oklch(39.7% 0.094 308.3), rgb(85, 55, 109).
Aa
White text reads best on this color (9.75:1).
About this color
#55376D is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.094 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 9.75:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.15:1 |
| White text | 9.75:1 |
Values
| HEX | #55376D |
| RGB | rgb(85, 55, 109) |
| HSL | hsl(273, 33%, 32%) |
| OKLCH | oklch(39.7% 0.094 308.3) |
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 #55376D | 9.75:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #55376D | 2.15:1 | Fails | Lc 11.5 | Not readable |
| #55376D text on white | 9.75:1 | AAA | Lc 92.4 | Preferred for body text |
| #55376D text on black | 2.15:1 | Fails | Lc -10.0 | 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 900.
-
Step 50
50
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE6F5
oklch(93.6% 0.022 309.6)
-
Step 200
200
#E0D3ED
oklch(88.5% 0.038 308)
-
Step 300
300
#CDB5E4
oklch(80.9% 0.07 308)
-
Step 400
400
#B48DD6
oklch(70.7% 0.112 308.2)
-
Step 500
500
#A26FCB
oklch(63.1% 0.143 308.4)
-
Step 600
600
#8D55B8
oklch(55.6% 0.156 308.3)
-
Step 700
700
#78449F
oklch(49% 0.147 308.3)
-
Step 800
800
#623981
oklch(42.8% 0.121 308.4)
-
Step 900
900 (this color)
#55376D
oklch(39.7% 0.094 308.3)
-
Step 950
950
#2F1E3C
oklch(27.1% 0.058 309.1)
#55376D 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) | #2A436F | 0.072 |
| Deuteranopia (no green cones) | #32446C | 0.065 |
| Tritanopia (no blue cones) | #52404D | 0.067 |
| Achromatopsia (no color) | #444444 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55376D
#55376D
oklch(39.7% 0.094 308.3)
- #37500F
#37500F
oklch(39.7% 0.094 128.7)
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 #55376D, 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 0.073
- Twilight #4E518B ΔE 0.078
- Rebecca Purple #663399 ΔE 0.080
- Dusk #4E5481 ΔE 0.081
- Grape Purple #5D1451 ΔE 0.082
- Purple Brown #673A3F ΔE 0.089
- Dark Grey Blue #29465B ΔE 0.089
Use #55376D 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.