#5B319E
Closest named color: Rebecca Purple (#663399). oklch(42.9% 0.167 296.3), rgb(91, 49, 158).
Aa
White text reads best on this color (8.83:1).
About this color
#5B319E is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.167 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 0.024 away. White text reads best on it, at 8.83:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.167) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.37:1 |
| White text | 8.83:1 |
Values
| HEX | #5B319E |
| RGB | rgb(91, 49, 158) |
| HSL | hsl(263, 53%, 41%) |
| OKLCH | oklch(42.9% 0.167 296.3) |
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 #5B319E | 8.83:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #5B319E | 2.37:1 | Fails | Lc 14.4 | Not readable |
| #5B319E text on white | 8.83:1 | AAA | Lc 89.6 | Fine for body text |
| #5B319E text on black | 2.37:1 | Fails | Lc -12.6 | 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
#EBE6FB
oklch(93.5% 0.029 296.7)
-
Step 200
200
#DCD2FA
oklch(88.4% 0.055 296.7)
-
Step 300
300
#C6B4F9
oklch(80.9% 0.098 296.1)
-
Step 400
400
#AB89F6
oklch(70.7% 0.157 296.5)
-
Step 500
500
#9767F2
oklch(63% 0.2 296.1)
-
Step 600
600
#8349E0
oklch(55.5% 0.217 296.2)
-
Step 700
700
#6F39C3
oklch(49.1% 0.202 296)
-
Step 800
800 (this color)
#5B319E
oklch(42.9% 0.167 296.3)
-
Step 900
900
#4A2D7D
oklch(37.8% 0.13 296.3)
-
Step 950
950
#2B1B49
oklch(26.9% 0.082 296.5)
#5B319E 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) | #004BA1 | 0.108 |
| Deuteranopia (no green cones) | #00499C | 0.108 |
| Tritanopia (no blue cones) | #4A4B63 | 0.129 |
| Achromatopsia (no color) | #4A4A4A | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B319E
#5B319E
oklch(42.9% 0.167 296.3)
- #4D5500
#4D5500
oklch(42.8% 0.098 115.9)
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 #5B319E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.024
- Blueberry #464196 ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.052
- Chrysanthemum #560BAD ΔE 0.055
- Imperial Purple #480CA8 ΔE 0.068
- Grape #7209B7 ΔE 0.069
- Blue With A Hint Of Purple #533CC6 ΔE 0.070
- Bluey Purple #6241C7 ΔE 0.074
Use #5B319E 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.