#55288D
Closest named color: Rebecca Purple (#663399). oklch(39.6% 0.158 299.4), rgb(85, 40, 141).
Aa
White text reads best on this color (10.12:1).
About this color
#55288D is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.158 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.046 away. White text reads best on it, at 10.12:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.07:1 |
| White text | 10.12:1 |
Values
| HEX | #55288D |
| RGB | rgb(85, 40, 141) |
| HSL | hsl(267, 56%, 35%) |
| OKLCH | oklch(39.6% 0.158 299.4) |
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 #55288D | 10.12:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #55288D | 2.07:1 | Fails | Lc 11.1 | Not readable |
| #55288D text on white | 10.12:1 | AAA | Lc 92.8 | Preferred for body text |
| #55288D text on black | 2.07:1 | Fails | Lc -9.6 | 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
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#EDE5FE
oklch(93.6% 0.035 300.3)
-
Step 200
200
#DFD0FF
oklch(88.5% 0.066 299.6)
-
Step 300
300
#CBB0FF
oklch(80.9% 0.113 299.6)
-
Step 400
400
#B282FF
oklch(70.7% 0.18 299.5)
-
Step 500
500
#A15AFF
oklch(63.1% 0.234 299.4)
-
Step 600
600
#8F2FF2
oklch(55.6% 0.263 299.6)
-
Step 700
700
#7A1CD3
oklch(49.1% 0.245 299.6)
-
Step 800
800
#631DAB
oklch(42.8% 0.203 299.5)
-
Step 900
900 (this color)
#55288D
oklch(39.6% 0.158 299.4)
-
Step 950
950
#2F164F
oklch(27.1% 0.1 299.9)
#55288D 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) | #004190 | 0.108 |
| Deuteranopia (no green cones) | #00418B | 0.109 |
| Tritanopia (no blue cones) | #484057 | 0.118 |
| Achromatopsia (no color) | #424242 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55288D
#55288D
oklch(39.6% 0.158 299.4)
- #414D00
#414D00
oklch(39.6% 0.093 119.4)
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 #55288D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.046
- Dark Slate Blue #483D8B ΔE 0.050
- Chrysanthemum #560BAD ΔE 0.060
- Blueberry #464196 ΔE 0.060
- Indigo #4B0082 ΔE 0.061
- Imperial Purple #480CA8 ΔE 0.064
- Royal Purple #4B006E ΔE 0.082
- Indigo Blue #3A18B1 ΔE 0.085
Use #55288D 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.