#55359B
Closest named color: Rebecca Purple (#663399). oklch(42.6% 0.158 292.9), rgb(85, 53, 155).
Aa
White text reads best on this color (8.86:1).
About this color
#55359B is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.158 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.033 away. White text reads best on it, at 8.86:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.36:1 |
| White text | 8.86:1 |
Values
| HEX | #55359B |
| RGB | rgb(85, 53, 155) |
| HSL | hsl(259, 49%, 41%) |
| OKLCH | oklch(42.6% 0.158 292.9) |
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 #55359B | 8.86:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #55359B | 2.36:1 | Fails | Lc 14.2 | Not readable |
| #55359B text on white | 8.86:1 | AAA | Lc 89.8 | Fine for body text |
| #55359B text on black | 2.36:1 | Fails | Lc -12.5 | 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 800.
-
Step 50
50
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#DAD3F9
oklch(88.4% 0.052 293.7)
-
Step 300
300
#C2B6F7
oklch(80.9% 0.091 292.7)
-
Step 400
400
#A58DF3
oklch(70.7% 0.147 293.1)
-
Step 500
500
#906DEF
oklch(63.1% 0.188 292.6)
-
Step 600
600
#7C50DD
oklch(55.6% 0.204 292.9)
-
Step 700
700
#693FC0
oklch(49% 0.191 293)
-
Step 800
800 (this color)
#55359B
oklch(42.6% 0.158 292.9)
-
Step 900
900
#46307C
oklch(37.8% 0.123 292.9)
-
Step 950
950
#291D48
oklch(27% 0.077 293.4)
#55359B 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) | #004B9E | 0.096 |
| Deuteranopia (no green cones) | #004899 | 0.095 |
| Tritanopia (no blue cones) | #414D63 | 0.125 |
| Achromatopsia (no color) | #4A4A4A | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55359B
#55359B
oklch(42.6% 0.158 292.9)
- #4F5300
#4F5300
oklch(42.4% 0.095 113)
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 #55359B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.033
- Blueberry #464196 ΔE 0.036
- Dark Slate Blue #483D8B ΔE 0.039
- Chrysanthemum #560BAD ΔE 0.062
- Imperial Purple #480CA8 ΔE 0.069
- Blue With A Hint Of Purple #533CC6 ΔE 0.071
- Twilight #4E518B ΔE 0.078
- Bluey Purple #6241C7 ΔE 0.078
Use #55359B 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.