#851C66
Closest named color: Mulberry (#920A4E). oklch(42.9% 0.159 342.8), rgb(133, 28, 102).
Aa
White text reads best on this color (8.91:1).
About this color
#851C66 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.159 and its hue 343°. Its hue sits on the warm side of the wheel. The nearest named color is Mulberry (#920A4E), ΔE 0.048 away. White text reads best on it, at 8.91:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.159) |
| Temperature | warm |
| Nearest name | Mulberry (#920A4E) |
| Black text | 2.35:1 |
| White text | 8.91:1 |
Values
| HEX | #851C66 |
| RGB | rgb(133, 28, 102) |
| HSL | hsl(318, 65%, 32%) |
| OKLCH | oklch(42.9% 0.159 342.8) |
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 #851C66 | 8.91:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #851C66 | 2.35:1 | Fails | Lc 14.8 | Not readable |
| #851C66 text on white | 8.91:1 | AAA | Lc 89.2 | Fine for body text |
| #851C66 text on black | 2.35:1 | Fails | Lc -13.0 | 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 800.
-
Step 50
50
#FCF2F8
oklch(97.1% 0.013 340.5)
-
Step 100
100
#F8E3EF
oklch(93.6% 0.028 342.3)
-
Step 200
200
#F3CCE2
oklch(88.5% 0.052 343.3)
-
Step 300
300
#EBA9D1
oklch(80.9% 0.093 342.4)
-
Step 400
400
#DE78B9
oklch(70.6% 0.148 342.7)
-
Step 500
500
#D250A7
oklch(63.1% 0.189 342.9)
-
Step 600
600
#BE2C93
oklch(55.7% 0.207 342.8)
-
Step 700
700
#A31C7D
oklch(49.1% 0.192 342.7)
-
Step 800
800 (this color)
#851C66
oklch(42.9% 0.159 342.8)
-
Step 900
900
#6B1F53
oklch(37.8% 0.124 342.7)
-
Step 950
950
#3F1330
oklch(26.9% 0.079 343.3)
#851C66 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) | #273F68 | 0.177 |
| Deuteranopia (no green cones) | #495064 | 0.152 |
| Tritanopia (no blue cones) | #8E1D3F | 0.070 |
| Achromatopsia (no color) | #4A4A4A | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #851C66
#851C66
oklch(42.9% 0.159 342.8)
- #005F40
#005F40
oklch(42.9% 0.093 162.6)
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 #851C66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mulberry #920A4E ΔE 0.048
- Red Violet #9E0168 ΔE 0.051
- Red Purple #820747 ΔE 0.052
- Velvet #750851 ΔE 0.053
- Dark Fuchsia #9D0759 ΔE 0.054
- Purple #800080 ΔE 0.057
- Rich Purple #720058 ΔE 0.058
- Deep Magenta #A0025C ΔE 0.058
Use #851C66 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.