#5B409F
Closest named color: Rebecca Purple (#663399). oklch(45.2% 0.148 292.6), rgb(91, 64, 159).
Aa
White text reads best on this color (7.83:1).
About this color
#5B409F is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.148 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 0.034 away. White text reads best on it, at 7.83:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.67:1 |
| White text | 7.83:1 |
Values
| HEX | #5B409F |
| RGB | rgb(91, 64, 159) |
| HSL | hsl(257, 43%, 44%) |
| OKLCH | oklch(45.2% 0.148 292.6) |
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 #5B409F | 7.83:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #5B409F | 2.67:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #5B409F text on white | 7.83:1 | AAA | Lc 86.9 | Fine for body text |
| #5B409F text on black | 2.67:1 | Fails | Lc -15.2 | Dividers and decoration only |
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
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#D9D4F7
oklch(88.5% 0.048 291.9)
-
Step 300
300
#C2B7F4
oklch(81% 0.086 292.6)
-
Step 400
400
#A48FEE
oklch(70.7% 0.137 292.7)
-
Step 500
500
#8F70E9
oklch(63.2% 0.176 292.4)
-
Step 600
600
#7B54D7
oklch(55.6% 0.192 292.8)
-
Step 700
700
#6843BA
oklch(49% 0.178 293)
-
Step 800
800 (this color)
#5B409F
oklch(45.2% 0.148 292.6)
-
Step 900
900
#453278
oklch(37.7% 0.115 292.5)
-
Step 950
950
#281E46
oklch(27% 0.072 292.4)
#5B409F 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) | #0053A2 | 0.096 |
| Deuteranopia (no green cones) | #0C509D | 0.092 |
| Tritanopia (no blue cones) | #485569 | 0.119 |
| Achromatopsia (no color) | #525252 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B409F
#5B409F
oklch(45.2% 0.148 292.6)
- #575B00
#575B00
oklch(45.2% 0.101 112.7)
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 #5B409F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.034
- Blueberry #464196 ΔE 0.038
- Dark Slate Blue #483D8B ΔE 0.047
- Twilight #4E518B ΔE 0.060
- Bluey Purple #6241C7 ΔE 0.064
- Blue With A Hint Of Purple #533CC6 ΔE 0.065
- Blurple #5539CC ΔE 0.074
- Dusk #4E5481 ΔE 0.079
Use #5B409F 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.