#5B33AD
Closest named color: Rebecca Purple (#663399). oklch(44.4% 0.182 292.4), rgb(91, 51, 173).
Aa
White text reads best on this color (8.32:1).
About this color
#5B33AD is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.182 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.040 away. White text reads best on it, at 8.32:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.182) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.52:1 |
| White text | 8.32:1 |
Values
| HEX | #5B33AD |
| RGB | rgb(91, 51, 173) |
| HSL | hsl(260, 54%, 44%) |
| OKLCH | oklch(44.4% 0.182 292.4) |
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 #5B33AD | 8.32:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #5B33AD | 2.52:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #5B33AD text on white | 8.32:1 | AAA | Lc 88.1 | Fine for body text |
| #5B33AD text on black | 2.52:1 | Fails | Lc -14.1 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#EAE7FD
oklch(93.7% 0.03 292.1)
-
Step 200
200
#D9D3FE
oklch(88.5% 0.059 291.5)
-
Step 300
300
#C2B4FF
oklch(80.9% 0.105 292.4)
-
Step 400
400
#A589FF
oklch(70.7% 0.169 292.5)
-
Step 500
500
#9265FF
oklch(63.2% 0.218 292.5)
-
Step 600
600
#7E45EE
oklch(55.7% 0.237 292.4)
-
Step 700
700
#6B34CF
oklch(49.1% 0.22 292.5)
-
Step 800
800 (this color)
#5B33AD
oklch(44.4% 0.182 292.4)
-
Step 900
900
#472B85
oklch(37.8% 0.143 292.5)
-
Step 950
950
#291B4E
oklch(27.1% 0.09 292)
#5B33AD 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) | #0050B1 | 0.104 |
| Deuteranopia (no green cones) | #004CAB | 0.103 |
| Tritanopia (no blue cones) | #42526C | 0.145 |
| Achromatopsia (no color) | #4E4E4E | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B33AD
#5B33AD
oklch(44.4% 0.182 292.4)
- #555800
#555800
oklch(44.3% 0.098 112.1)
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 #5B33AD, closest first.
No curated palette has a color within ΔE 0.04 of #5B33AD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.040
- Blue With A Hint Of Purple #533CC6 ΔE 0.046
- Bluey Purple #6241C7 ΔE 0.052
- Blurple #5539CC ΔE 0.053
- Chrysanthemum #560BAD ΔE 0.053
- Blueberry #464196 ΔE 0.058
- Purple Blue #5D21D0 ΔE 0.059
- Grape #7209B7 ΔE 0.062
Use #5B33AD 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.