#5B36AC
Closest named color: Rebecca Purple (#663399). oklch(44.7% 0.178 292), rgb(91, 54, 172).
Aa
White text reads best on this color (8.17:1).
About this color
#5B36AC is a dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.178 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 0.038 away. White text reads best on it, at 8.17:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | vivid (0.178) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.56:1 |
| White text | 8.17:1 |
Values
| HEX | #5B36AC |
| RGB | rgb(91, 54, 172) |
| HSL | hsl(259, 52%, 44%) |
| OKLCH | oklch(44.7% 0.178 292) |
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 #5B36AC | 8.17:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #5B36AC | 2.56:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #5B36AC text on white | 8.17:1 | AAA | Lc 87.7 | Fine for body text |
| #5B36AC text on black | 2.56:1 | Fails | Lc -14.5 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#EAE7FD
oklch(93.7% 0.03 292.1)
-
Step 200
200
#D9D3FD
oklch(88.5% 0.058 291.7)
-
Step 300
300
#C2B5FE
oklch(81% 0.103 292.1)
-
Step 400
400
#A48AFE
oklch(70.7% 0.166 291.9)
-
Step 500
500
#9067FC
oklch(63.1% 0.212 291.9)
-
Step 600
600
#7D48EB
oklch(55.7% 0.23 292.1)
-
Step 700
700
#6A37CD
oklch(49.2% 0.215 292.1)
-
Step 800
800 (this color)
#5B36AC
oklch(44.7% 0.178 292)
-
Step 900
900
#462C83
oklch(37.6% 0.139 292.2)
-
Step 950
950
#291B4D
oklch(27% 0.088 292.4)
#5B36AC 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) | #0051B0 | 0.102 |
| Deuteranopia (no green cones) | #004DAA | 0.101 |
| Tritanopia (no blue cones) | #42536C | 0.142 |
| Achromatopsia (no color) | #4F4F4F | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B36AC
#5B36AC
oklch(44.7% 0.178 292)
- #565900
#565900
oklch(44.6% 0.099 112)
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 #5B36AC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.038
- Blue With A Hint Of Purple #533CC6 ΔE 0.046
- Bluey Purple #6241C7 ΔE 0.050
- Blurple #5539CC ΔE 0.053
- Blueberry #464196 ΔE 0.054
- Chrysanthemum #560BAD ΔE 0.059
- Purple Blue #5D21D0 ΔE 0.062
- Dark Slate Blue #483D8B ΔE 0.064
Use #5B36AC 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.