#5B379A
Closest named color: Rebecca Purple (#663399). oklch(43.4% 0.154 296.1), rgb(91, 55, 154).
Aa
White text reads best on this color (8.54:1).
About this color
#5B379A is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.154 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.022 away. White text reads best on it, at 8.54:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.45:1 |
| White text | 8.54:1 |
Values
| HEX | #5B379A |
| RGB | rgb(91, 55, 154) |
| HSL | hsl(262, 47%, 41%) |
| OKLCH | oklch(43.4% 0.154 296.1) |
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 #5B379A | 8.54:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #5B379A | 2.45:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #5B379A text on white | 8.54:1 | AAA | Lc 88.9 | Fine for body text |
| #5B379A text on black | 2.45:1 | Fails | Lc -13.3 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7FA
oklch(93.7% 0.026 295.5)
-
Step 200
200
#DBD3F7
oklch(88.5% 0.05 295.5)
-
Step 300
300
#C5B5F5
oklch(80.9% 0.091 295.8)
-
Step 400
400
#A98CEF
oklch(70.7% 0.143 296)
-
Step 500
500
#966BEA
oklch(63.1% 0.185 296.3)
-
Step 600
600
#814FD8
oklch(55.6% 0.2 296)
-
Step 700
700
#6E3FBB
oklch(49.2% 0.185 296.3)
-
Step 800
800 (this color)
#5B379A
oklch(43.4% 0.154 296.1)
-
Step 900
900
#492F79
oklch(37.7% 0.121 296.3)
-
Step 950
950
#2A1D47
oklch(27.1% 0.076 295.1)
#5B379A 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) | #004D9D | 0.104 |
| Deuteranopia (no green cones) | #004B98 | 0.104 |
| Tritanopia (no blue cones) | #4B4D63 | 0.120 |
| Achromatopsia (no color) | #4C4C4C | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B379A
#5B379A
oklch(43.4% 0.154 296.1)
- #4F5700
#4F5700
oklch(43.5% 0.099 115.8)
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 #5B379A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.022
- Blueberry #464196 ΔE 0.041
- Dark Slate Blue #483D8B ΔE 0.043
- Chrysanthemum #560BAD ΔE 0.069
- Blue With A Hint Of Purple #533CC6 ΔE 0.073
- Twilight #4E518B ΔE 0.074
- Bluey Purple #6241C7 ΔE 0.076
- Grape #7209B7 ΔE 0.079
Use #5B379A 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.