#5B41A0
Closest named color: Rebecca Purple (#663399). oklch(45.5% 0.147 292.1), rgb(91, 65, 160).
Aa
White text reads best on this color (7.75:1).
About this color
#5B41A0 is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.147 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.036 away. White text reads best on it, at 7.75:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #5B41A0 |
| RGB | rgb(91, 65, 160) |
| HSL | hsl(256, 42%, 44%) |
| OKLCH | oklch(45.5% 0.147 292.1) |
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 #5B41A0 | 7.75:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #5B41A0 | 2.70:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #5B41A0 text on white | 7.75:1 | AAA | Lc 86.6 | Fine for body text |
| #5B41A0 text on black | 2.70:1 | Fails | Lc -15.5 | 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
#C1B7F4
oklch(80.9% 0.086 291.9)
-
Step 400
400
#A38FEF
oklch(70.7% 0.138 292.1)
-
Step 500
500
#8E70E9
oklch(63.1% 0.176 292)
-
Step 600
600
#7A54D7
oklch(55.5% 0.192 292.4)
-
Step 700
700
#6744BB
oklch(49.2% 0.178 292.1)
-
Step 800
800 (this color)
#5B41A0
oklch(45.5% 0.147 292.1)
-
Step 900
900
#453278
oklch(37.7% 0.115 292.5)
-
Step 950
950
#281E46
oklch(27% 0.072 292.4)
#5B41A0 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) | #0054A3 | 0.095 |
| Deuteranopia (no green cones) | #0C519E | 0.091 |
| Tritanopia (no blue cones) | #48566A | 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°).
- #5B41A0
#5B41A0
oklch(45.5% 0.147 292.1)
- #585C00
#585C00
oklch(45.6% 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 #5B41A0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.036
- Blueberry #464196 ΔE 0.039
- Dark Slate Blue #483D8B ΔE 0.049
- Twilight #4E518B ΔE 0.060
- Bluey Purple #6241C7 ΔE 0.063
- Blue With A Hint Of Purple #533CC6 ΔE 0.064
- Blurple #5539CC ΔE 0.073
- Iris #6258C4 ΔE 0.077
Use #5B41A0 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.