#5B539D
Closest named color: Twilight (#4E518B). oklch(48.6% 0.116 286.2), rgb(91, 83, 157).
Aa
White text reads best on this color (6.62:1).
About this color
#5B539D is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.116 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.036 away. White text reads best on it, at 6.62:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.16:1 |
| White text | 6.62:1 |
Values
| HEX | #5B539D |
| RGB | rgb(91, 83, 157) |
| HSL | hsl(246, 31%, 47%) |
| OKLCH | oklch(48.6% 0.116 286.2) |
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 #5B539D | 6.62:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #5B539D | 3.16:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #5B539D text on white | 6.62:1 | AA | Lc 82.6 | Fine for body text |
| #5B539D text on black | 3.16:1 | AA large text | Lc -19.3 | 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 700.
-
Step 50
50
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D7D7ED
oklch(88.6% 0.03 285.8)
-
Step 300
300
#BDBCE4
oklch(80.9% 0.056 286.2)
-
Step 400
400
#9C98D6
oklch(70.6% 0.09 286.8)
-
Step 500
500
#847ECB
oklch(63.1% 0.114 286.2)
-
Step 600
600
#6E66B8
oklch(55.5% 0.125 286)
-
Step 700
700 (this color)
#5B539D
oklch(48.6% 0.116 286.2)
-
Step 800
800
#4B4581
oklch(42.6% 0.097 286.1)
-
Step 900
900
#3F3B67
oklch(37.8% 0.074 286.4)
-
Step 950
950
#25233C
oklch(27.1% 0.046 286.6)
#5B539D 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) | #375FA0 | 0.053 |
| Deuteranopia (no green cones) | #355B9B | 0.052 |
| Tritanopia (no blue cones) | #486270 | 0.099 |
| Achromatopsia (no color) | #5D5D5D | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B539D
#5B539D
oklch(48.6% 0.116 286.2)
- #676200
#676200
oklch(48.5% 0.104 106.2)
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 #5B539D, closest first.
No curated palette has a color within ΔE 0.04 of #5B539D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.036
- Dusky Blue #475F94 ΔE 0.046
- Dusk #4E5481 ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.052
- Blueberry #464196 ΔE 0.061
- Iris #6258C4 ΔE 0.063
- French Blue #436BAD ΔE 0.068
- Denim #3B638C ΔE 0.069
Use #5B539D 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.