#5B2C8E
Closest named color: Rebecca Purple (#663399). oklch(40.9% 0.155 301.9), rgb(91, 44, 142).
Aa
White text reads best on this color (9.56:1).
About this color
#5B2C8E is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.155 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.032 away. White text reads best on it, at 9.56:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.19:1 |
| White text | 9.56:1 |
Values
| HEX | #5B2C8E |
| RGB | rgb(91, 44, 142) |
| HSL | hsl(269, 53%, 36%) |
| OKLCH | oklch(40.9% 0.155 301.9) |
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 #5B2C8E | 9.56:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #5B2C8E | 2.19:1 | Fails | Lc 12.4 | Not readable |
| #5B2C8E text on white | 9.56:1 | AAA | Lc 91.5 | Preferred for body text |
| #5B2C8E text on black | 2.19:1 | Fails | Lc -10.8 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EDE6F9
oklch(93.6% 0.026 302.6)
-
Step 200
200
#DFD2F6
oklch(88.5% 0.051 301.8)
-
Step 300
300
#CBB3F2
oklch(80.9% 0.091 301.8)
-
Step 400
400
#B289EB
oklch(70.8% 0.144 302.1)
-
Step 500
500
#9F67E5
oklch(63% 0.186 301.8)
-
Step 600
600
#8B4BD3
oklch(55.7% 0.201 301.8)
-
Step 700
700
#763AB6
oklch(49% 0.187 302.1)
-
Step 800
800 (this color)
#5B2C8E
oklch(40.9% 0.155 301.9)
-
Step 900
900
#4E2D76
oklch(37.7% 0.121 301.7)
-
Step 950
950
#2E1B45
oklch(27% 0.077 302.4)
#5B2C8E 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) | #004491 | 0.114 |
| Deuteranopia (no green cones) | #00458C | 0.116 |
| Tritanopia (no blue cones) | #504259 | 0.114 |
| Achromatopsia (no color) | #454545 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B2C8E
#5B2C8E
oklch(40.9% 0.155 301.9)
- #425200
#425200
oklch(41% 0.099 121.7)
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 #5B2C8E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.032
- Dark Slate Blue #483D8B ΔE 0.049
- Blueberry #464196 ΔE 0.058
- Chrysanthemum #560BAD ΔE 0.065
- Imperial Purple #480CA8 ΔE 0.074
- Indigo #4B0082 ΔE 0.074
- Grape #7209B7 ΔE 0.083
- Purple #800080 ΔE 0.089
Use #5B2C8E 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.