#5B2782
Closest named color: Rebecca Purple (#663399). oklch(39.3% 0.148 307), rgb(91, 39, 130).
Aa
White text reads best on this color (10.20:1).
About this color
#5B2782 is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.148 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.050 away. White text reads best on it, at 10.20:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.05:1 |
| White text | 10.20:1 |
Values
| HEX | #5B2782 |
| RGB | rgb(91, 39, 130) |
| HSL | hsl(274, 54%, 33%) |
| OKLCH | oklch(39.3% 0.148 307) |
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 #5B2782 | 10.20:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #5B2782 | 2.05:1 | Fails | Lc 10.9 | Not readable |
| #5B2782 text on white | 10.20:1 | AAA | Lc 93.1 | Preferred for body text |
| #5B2782 text on black | 2.05:1 | Fails | Lc -9.4 | 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 900.
-
Step 50
50
#F8F3FE
oklch(97.1% 0.015 306.4)
-
Step 100
100
#EFE5FB
oklch(93.6% 0.031 306.2)
-
Step 200
200
#E4CFFA
oklch(88.5% 0.062 307.2)
-
Step 300
300
#D3AEF9
oklch(80.9% 0.11 306.6)
-
Step 400
400
#BE7EF6
oklch(70.7% 0.178 307)
-
Step 500
500
#AE56F1
oklch(63.1% 0.227 307.2)
-
Step 600
600
#9A31E0
oklch(55.6% 0.247 307.1)
-
Step 700
700
#8320C2
oklch(49% 0.229 306.9)
-
Step 800
800
#6B1F9D
oklch(42.7% 0.19 307.2)
-
Step 900
900 (this color)
#5B2782
oklch(39.3% 0.148 307)
-
Step 950
950
#331649
oklch(27.1% 0.093 307.5)
#5B2782 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) | #003F85 | 0.121 |
| Deuteranopia (no green cones) | #104180 | 0.116 |
| Tritanopia (no blue cones) | #553B51 | 0.105 |
| Achromatopsia (no color) | #414141 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B2782
#5B2782
oklch(39.3% 0.148 307)
- #374F00
#374F00
oklch(39.3% 0.101 127)
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 #5B2782, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.059
- Indigo #4B0082 ΔE 0.064
- Blueberry #464196 ΔE 0.072
- Royal Purple #4B006E ΔE 0.076
- Chrysanthemum #560BAD ΔE 0.079
- Purple #800080 ΔE 0.082
- Imperial Purple #480CA8 ΔE 0.085
Use #5B2782 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.