#5B4BCB
Closest named color: Bluey Purple (#6241C7). oklch(50.5% 0.19 282.9), rgb(91, 75, 203).
Aa
White text reads best on this color (6.33:1).
About this color
#5B4BCB is a medium-dark, vivid purple. In OKLCH its lightness is 50%, its chroma 0.190 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.023 away. White text reads best on it, at 6.33:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.190) |
| Temperature | cool |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.31:1 |
| White text | 6.33:1 |
Values
| HEX | #5B4BCB |
| RGB | rgb(91, 75, 203) |
| HSL | hsl(248, 55%, 55%) |
| OKLCH | oklch(50.5% 0.19 282.9) |
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 #5B4BCB | 6.33:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #5B4BCB | 3.31:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #5B4BCB text on white | 6.33:1 | AA | Lc 81.0 | Fine for body text |
| #5B4BCB text on black | 3.31:1 | AA large text | Lc -20.8 | 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
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E7E8FC
oklch(93.6% 0.027 283.6)
-
Step 200
200
#D4D6FB
oklch(88.6% 0.051 282.9)
-
Step 300
300
#B8B9FB
oklch(80.9% 0.093 283.4)
-
Step 400
400
#9593F9
oklch(70.8% 0.147 282.9)
-
Step 500
500
#7D74F5
oklch(63.1% 0.187 282.8)
-
Step 600
600
#6858E4
oklch(55.6% 0.204 282.7)
-
Step 700
700 (this color)
#5B4BCB
oklch(50.5% 0.19 282.9)
-
Step 800
800
#473BA0
oklch(42.6% 0.157 282.9)
-
Step 900
900
#3B347F
oklch(37.7% 0.122 283)
-
Step 950
950
#221F4B
oklch(27% 0.079 282.8)
#5B4BCB 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) | #0064CF | 0.086 |
| Deuteranopia (no green cones) | #005BC8 | 0.081 |
| Tritanopia (no blue cones) | #266A84 | 0.160 |
| Achromatopsia (no color) | #5F5F5F | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B4BCB
#5B4BCB
oklch(50.5% 0.19 282.9)
- #706600
#706600
oklch(50.4% 0.106 102.8)
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 #5B4BCB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.023
- Iris #6258C4 ΔE 0.035
- Blue With A Hint Of Purple #533CC6 ΔE 0.036
- Blurple #5539CC ΔE 0.038
- Warm Blue #4B57DB ΔE 0.040
- Slate Blue #6A5ACD ΔE 0.044
- Light Indigo #6D5ACF ΔE 0.047
- Dark Periwinkle #665FD1 ΔE 0.051
Use #5B4BCB 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.