#553282
Closest named color: Dark Slate Blue (#483D8B). oklch(40.2% 0.13 300.9), rgb(85, 50, 130).
Aa
White text reads best on this color (9.70:1).
About this color
#553282 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.130 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.036 away. White text reads best on it, at 9.70:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.130) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.16:1 |
| White text | 9.70:1 |
Values
| HEX | #553282 |
| RGB | rgb(85, 50, 130) |
| HSL | hsl(266, 44%, 35%) |
| OKLCH | oklch(40.2% 0.13 300.9) |
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 #553282 | 9.70:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #553282 | 2.16:1 | Fails | Lc 11.8 | Not readable |
| #553282 text on white | 9.70:1 | AAA | Lc 92.1 | Preferred for body text |
| #553282 text on black | 2.16:1 | Fails | Lc -10.3 | 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
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#EDE6FA
oklch(93.6% 0.028 301.7)
-
Step 200
200
#DFD2F8
oklch(88.6% 0.053 300.9)
-
Step 300
300
#CBB2F6
oklch(80.9% 0.098 301.1)
-
Step 400
400
#B187F2
oklch(70.7% 0.156 300.6)
-
Step 500
500
#9F64ED
oklch(63.1% 0.2 300.7)
-
Step 600
600
#8B45DB
oklch(55.5% 0.217 300.8)
-
Step 700
700
#7635BE
oklch(49% 0.202 300.7)
-
Step 800
800
#602E9A
oklch(42.7% 0.167 300.7)
-
Step 900
900 (this color)
#553282
oklch(40.2% 0.13 300.9)
-
Step 950
950
#2E1A48
oklch(27% 0.083 301.1)
#553282 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) | #064485 | 0.100 |
| Deuteranopia (no green cones) | #194480 | 0.091 |
| Tritanopia (no blue cones) | #4C4355 | 0.099 |
| Achromatopsia (no color) | #444444 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #553282
#553282
oklch(40.2% 0.13 300.9)
- #414F00
#414F00
oklch(40.1% 0.096 120.6)
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 #553282, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.036
- Rebecca Purple #663399 ΔE 0.049
- Blueberry #464196 ΔE 0.052
- Twilight #4E518B ΔE 0.080
- Indigo #4B0082 ΔE 0.080
- Chrysanthemum #560BAD ΔE 0.087
- Imperial Purple #480CA8 ΔE 0.089
- Cobalt #1E488F ΔE 0.090
Use #553282 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.