#5A1866
Closest named color: Grape Purple (#5D1451). oklch(35.4% 0.139 321), rgb(90, 24, 102).
Aa
White text reads best on this color (11.95:1).
About this color
#5A1866 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.139 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.038 away. White text reads best on it, at 11.95:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.75:1 |
| White text | 11.95:1 |
Values
| HEX | #5A1866 |
| RGB | rgb(90, 24, 102) |
| HSL | hsl(291, 62%, 25%) |
| OKLCH | oklch(35.4% 0.139 321) |
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 #5A1866 | 11.95:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #5A1866 | 1.75:1 | Fails | Lc 7.4 | Not readable |
| #5A1866 text on white | 11.95:1 | AAA | Lc 96.5 | Preferred for body text |
| #5A1866 text on black | 1.75:1 | Fails | Lc 0.0 | 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
#FAF3FB
oklch(97.2% 0.013 321.9)
-
Step 100
100
#F4E4F6
oklch(93.7% 0.029 322.4)
-
Step 200
200
#EBCDF1
oklch(88.4% 0.058 320.6)
-
Step 300
300
#E0ABEA
oklch(81% 0.104 321)
-
Step 400
400
#CF7ADF
oklch(70.8% 0.167 321.1)
-
Step 500
500
#C052D5
oklch(63.1% 0.211 320.9)
-
Step 600
600
#AC2DC2
oklch(55.6% 0.23 321.2)
-
Step 700
700
#931CA8
oklch(49.1% 0.215 320.8)
-
Step 800
800
#781C88
oklch(42.8% 0.178 321.1)
-
Step 900
900 (this color)
#5A1866
oklch(35.4% 0.139 321)
-
Step 950
950
#391440
oklch(27% 0.088 321)
#5A1866 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) | #003268 | 0.140 |
| Deuteranopia (no green cones) | #213964 | 0.120 |
| Tritanopia (no blue cones) | #5B273D | 0.085 |
| Achromatopsia (no color) | #373737 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A1866
#5A1866
oklch(35.4% 0.139 321)
- #0B4900
#0B4900
oklch(35.4% 0.116 141)
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 #5A1866, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.038
- Royal Purple #4B006E ΔE 0.051
- Plum Purple #4E0550 ΔE 0.053
- Rich Purple #720058 ΔE 0.060
- Indigo #4B0082 ΔE 0.068
- Deep Violet #490648 ΔE 0.069
- Velvet #750851 ΔE 0.071
- Eggplant Purple #430541 ΔE 0.087
Use #5A1866 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.