#5B339D
Closest named color: Rebecca Purple (#663399). oklch(43.1% 0.163 296.2), rgb(91, 51, 157).
Aa
White text reads best on this color (8.73:1).
About this color
#5B339D is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.163 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 0.023 away. White text reads best on it, at 8.73:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.40:1 |
| White text | 8.73:1 |
Values
| HEX | #5B339D |
| RGB | rgb(91, 51, 157) |
| HSL | hsl(263, 51%, 41%) |
| OKLCH | oklch(43.1% 0.163 296.2) |
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 #5B339D | 8.73:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #5B339D | 2.40:1 | Fails | Lc 14.6 | Not readable |
| #5B339D text on white | 8.73:1 | AAA | Lc 89.4 | Fine for body text |
| #5B339D text on black | 2.40:1 | Fails | Lc -12.9 | 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
#DCD3F9
oklch(88.6% 0.053 296.2)
-
Step 300
300
#C6B4F8
oklch(80.9% 0.096 296.3)
-
Step 400
400
#AA8AF4
oklch(70.7% 0.153 296.2)
-
Step 500
500
#9769EF
oklch(63.2% 0.194 296.2)
-
Step 600
600
#834BDE
oklch(55.7% 0.212 296.3)
-
Step 700
700
#6F3BC1
oklch(49.2% 0.197 296.1)
-
Step 800
800 (this color)
#5B339D
oklch(43.1% 0.163 296.2)
-
Step 900
900
#492E7C
oklch(37.7% 0.127 295.7)
-
Step 950
950
#2B1C49
oklch(27.1% 0.081 296)
#5B339D 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) | #004CA0 | 0.107 |
| Deuteranopia (no green cones) | #004A9B | 0.107 |
| Tritanopia (no blue cones) | #4A4C63 | 0.127 |
| Achromatopsia (no color) | #4B4B4B | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B339D
#5B339D
oklch(43.1% 0.163 296.2)
- #4E5600
#4E5600
oklch(43.1% 0.098 115.8)
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 #5B339D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.023
- Blueberry #464196 ΔE 0.047
- Dark Slate Blue #483D8B ΔE 0.049
- Chrysanthemum #560BAD ΔE 0.059
- Blue With A Hint Of Purple #533CC6 ΔE 0.070
- Imperial Purple #480CA8 ΔE 0.072
- Grape #7209B7 ΔE 0.072
- Bluey Purple #6241C7 ΔE 0.074
Use #5B339D 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.