#5B5099
Closest named color: Twilight (#4E518B). oklch(47.7% 0.115 288.2), rgb(91, 80, 153).
Aa
White text reads best on this color (6.88:1).
About this color
#5B5099 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 48%, its chroma 0.115 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.031 away. White text reads best on it, at 6.88:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.05:1 |
| White text | 6.88:1 |
Values
| HEX | #5B5099 |
| RGB | rgb(91, 80, 153) |
| HSL | hsl(249, 31%, 46%) |
| OKLCH | oklch(47.7% 0.115 288.2) |
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 #5B5099 | 6.88:1 | AA | Lc -88.6 | Fine for body text |
| Black text on #5B5099 | 3.05:1 | AA large text | Lc 20.4 | Dividers and decoration only |
| #5B5099 text on white | 6.88:1 | AA | Lc 83.6 | Fine for body text |
| #5B5099 text on black | 3.05:1 | AA large text | Lc -18.3 | 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
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D8D6ED
oklch(88.5% 0.031 289.7)
-
Step 300
300
#BEBCE3
oklch(81% 0.055 287.5)
-
Step 400
400
#9E98D5
oklch(70.7% 0.088 288.4)
-
Step 500
500
#877DCA
oklch(63.1% 0.114 288.6)
-
Step 600
600
#7165B7
oklch(55.5% 0.125 288.4)
-
Step 700
700 (this color)
#5B5099
oklch(47.7% 0.115 288.2)
-
Step 800
800
#4D4580
oklch(42.7% 0.096 287.9)
-
Step 900
900
#403A66
oklch(37.6% 0.074 288.6)
-
Step 950
950
#25223C
oklch(26.9% 0.048 288)
#5B5099 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) | #355C9C | 0.056 |
| Deuteranopia (no green cones) | #345897 | 0.055 |
| Tritanopia (no blue cones) | #4A5F6D | 0.097 |
| Achromatopsia (no color) | #5A5A5A | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B5099
#5B5099
oklch(47.7% 0.115 288.2)
- #636100
#636100
oklch(47.9% 0.103 108.3)
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 #5B5099, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.031
- Dusk #4E5481 ΔE 0.048
- Dusky Blue #475F94 ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.053
- Blueberry #464196 ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.064
- Dusty Grape #545775 ΔE 0.068
- Rebecca Purple #663399 ΔE 0.069
Use #5B5099 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.