#552F82
Closest named color: Dark Slate Blue (#483D8B). oklch(39.7% 0.135 301.6), rgb(85, 47, 130).
Aa
White text reads best on this color (9.92:1).
About this color
#552F82 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.135 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 0.040 away. White text reads best on it, at 9.92:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.11:1 |
| White text | 9.92:1 |
Values
| HEX | #552F82 |
| RGB | rgb(85, 47, 130) |
| HSL | hsl(267, 47%, 35%) |
| OKLCH | oklch(39.7% 0.135 301.6) |
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 #552F82 | 9.92:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #552F82 | 2.11:1 | Fails | Lc 11.3 | Not readable |
| #552F82 text on white | 9.92:1 | AAA | Lc 92.6 | Preferred for body text |
| #552F82 text on black | 2.11:1 | Fails | Lc -9.8 | 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 900.
-
Step 50
50
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EDE6FB
oklch(93.7% 0.029 301)
-
Step 200
200
#DFD1F9
oklch(88.5% 0.056 301.2)
-
Step 300
300
#CCB1F8
oklch(80.8% 0.102 301.6)
-
Step 400
400
#B385F4
oklch(70.6% 0.162 301.5)
-
Step 500
500
#A261EF
oklch(63.1% 0.207 301.9)
-
Step 600
600
#8D42DE
oklch(55.6% 0.224 301.3)
-
Step 700
700
#7831C0
oklch(49% 0.209 301.6)
-
Step 800
800
#622B9C
oklch(42.7% 0.173 301.6)
-
Step 900
900 (this color)
#552F82
oklch(39.7% 0.135 301.6)
-
Step 950
950
#2E1948
oklch(26.9% 0.085 301.5)
#552F82 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) | #004285 | 0.104 |
| Deuteranopia (no green cones) | #144280 | 0.097 |
| Tritanopia (no blue cones) | #4C4154 | 0.101 |
| Achromatopsia (no color) | #434343 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552F82
#552F82
oklch(39.7% 0.135 301.6)
- #3F4E00
#3F4E00
oklch(39.7% 0.096 121.4)
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 #552F82, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.040
- Rebecca Purple #663399 ΔE 0.050
- Blueberry #464196 ΔE 0.056
- Indigo #4B0082 ΔE 0.073
- Chrysanthemum #560BAD ΔE 0.083
- Royal Purple #4B006E ΔE 0.085
- Imperial Purple #480CA8 ΔE 0.085
- Twilight #4E518B ΔE 0.086
Use #552F82 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.