#5B3FA4
Closest named color: Rebecca Purple (#663399). oklch(45.5% 0.156 291.8), rgb(91, 63, 164).
Aa
White text reads best on this color (7.80:1).
About this color
#5B3FA4 is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.156 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 0.035 away. White text reads best on it, at 7.80:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.69:1 |
| White text | 7.80:1 |
Values
| HEX | #5B3FA4 |
| RGB | rgb(91, 63, 164) |
| HSL | hsl(257, 44%, 45%) |
| OKLCH | oklch(45.5% 0.156 291.8) |
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 #5B3FA4 | 7.80:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #5B3FA4 | 2.69:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #5B3FA4 text on white | 7.80:1 | AAA | Lc 86.7 | Fine for body text |
| #5B3FA4 text on black | 2.69:1 | Fails | Lc -15.4 | 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
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#D9D4F9
oklch(88.6% 0.051 291.5)
-
Step 300
300
#C1B6F7
oklch(80.8% 0.091 292)
-
Step 400
400
#A38EF3
oklch(70.7% 0.145 291.8)
-
Step 500
500
#8E6EEF
oklch(63.1% 0.186 291.6)
-
Step 600
600
#7A52DD
oklch(55.7% 0.202 291.8)
-
Step 700
700
#6741C0
oklch(49.1% 0.188 291.7)
-
Step 800
800 (this color)
#5B3FA4
oklch(45.5% 0.156 291.8)
-
Step 900
900
#45317B
oklch(37.7% 0.121 292.1)
-
Step 950
950
#281D48
oklch(26.9% 0.077 292.2)
#5B3FA4 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) | #0054A7 | 0.096 |
| Deuteranopia (no green cones) | #0050A2 | 0.096 |
| Tritanopia (no blue cones) | #46566B | 0.126 |
| Achromatopsia (no color) | #525252 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3FA4
#5B3FA4
oklch(45.5% 0.156 291.8)
- #595B00
#595B00
oklch(45.4% 0.1 111.3)
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 #5B3FA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.035
- Blueberry #464196 ΔE 0.042
- Dark Slate Blue #483D8B ΔE 0.052
- Bluey Purple #6241C7 ΔE 0.057
- Blue With A Hint Of Purple #533CC6 ΔE 0.057
- Blurple #5539CC ΔE 0.066
- Twilight #4E518B ΔE 0.067
- Iris #6258C4 ΔE 0.076
Use #5B3FA4 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.