#5B448B
Closest named color: Twilight (#4E518B). oklch(44.6% 0.114 296.4), rgb(91, 68, 139).
Aa
White text reads best on this color (7.94:1).
About this color
#5B448B is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.114 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.039 away. White text reads best on it, at 7.94:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.64:1 |
| White text | 7.94:1 |
Values
| HEX | #5B448B |
| RGB | rgb(91, 68, 139) |
| HSL | hsl(259, 34%, 41%) |
| OKLCH | oklch(44.6% 0.114 296.4) |
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 #5B448B | 7.94:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #5B448B | 2.64:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #5B448B text on white | 7.94:1 | AAA | Lc 87.4 | Fine for body text |
| #5B448B text on black | 2.64:1 | Fails | Lc -14.8 | Not readable |
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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F6
oklch(93.5% 0.021 298.2)
-
Step 200
200
#DBD5EF
oklch(88.6% 0.036 296.2)
-
Step 300
300
#C4B8E7
oklch(80.8% 0.067 296.6)
-
Step 400
400
#A792DB
oklch(70.6% 0.107 296.8)
-
Step 500
500
#9276D2
oklch(63.1% 0.137 296.3)
-
Step 600
600
#7D5DBF
oklch(55.7% 0.148 296.3)
-
Step 700
700
#6A4CA4
oklch(49.1% 0.137 296.8)
-
Step 800
800 (this color)
#5B448B
oklch(44.6% 0.114 296.4)
-
Step 900
900
#47366B
oklch(37.8% 0.089 296.7)
-
Step 950
950
#29203F
oklch(27% 0.057 295.7)
#5B448B 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) | #2B518D | 0.072 |
| Deuteranopia (no green cones) | #305089 | 0.067 |
| Tritanopia (no blue cones) | #505261 | 0.091 |
| Achromatopsia (no color) | #515151 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B448B
#5B448B
oklch(44.6% 0.114 296.4)
- #515A00
#515A00
oklch(44.4% 0.102 116.3)
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 #5B448B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.039
- Dark Slate Blue #483D8B ΔE 0.040
- Blueberry #464196 ΔE 0.042
- Rebecca Purple #663399 ΔE 0.049
- Dusk #4E5481 ΔE 0.053
- Dusty Grape #545775 ΔE 0.072
- Denim Blue #3B5B92 ΔE 0.072
- Dusky Blue #475F94 ΔE 0.075
Use #5B448B 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.