#661B69
Closest named color: Rich Purple (#720058). oklch(37.8% 0.144 326.3), rgb(102, 27, 105).
Aa
White text reads best on this color (10.90:1).
About this color
#661B69 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.144 and its hue 326°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Purple (#720058), ΔE 0.044 away. White text reads best on it, at 10.90:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Rich Purple (#720058) |
| Black text | 1.92:1 |
| White text | 10.90:1 |
Values
| HEX | #661B69 |
| RGB | rgb(102, 27, 105) |
| HSL | hsl(298, 59%, 26%) |
| OKLCH | oklch(37.8% 0.144 326.3) |
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 #661B69 | 10.90:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #661B69 | 1.92:1 | Fails | Lc 9.6 | Not readable |
| #661B69 text on white | 10.90:1 | AAA | Lc 94.3 | Preferred for body text |
| #661B69 text on black | 1.92:1 | Fails | Lc -8.3 | 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
#FBF2FB
oklch(97.1% 0.015 325.7)
-
Step 100
100
#F5E3F5
oklch(93.5% 0.031 325.8)
-
Step 200
200
#EFCCEE
oklch(88.5% 0.059 327)
-
Step 300
300
#E5A8E6
oklch(80.8% 0.108 326)
-
Step 400
400
#D676D9
oklch(70.7% 0.172 326.1)
-
Step 500
500
#C94ACE
oklch(63% 0.22 326.2)
-
Step 600
600
#B520BB
oklch(55.7% 0.239 326.4)
-
Step 700
700
#9B0BA1
oklch(49.1% 0.222 326.3)
-
Step 800
800
#7E1283
oklch(42.7% 0.185 326.1)
-
Step 900
900 (this color)
#661B69
oklch(37.8% 0.144 326.3)
-
Step 950
950
#3C123D
oklch(27% 0.09 326.8)
#661B69 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) | #09376B | 0.152 |
| Deuteranopia (no green cones) | #2D4067 | 0.128 |
| Tritanopia (no blue cones) | #692740 | 0.081 |
| Achromatopsia (no color) | #3D3D3D | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661B69
#661B69
oklch(37.8% 0.144 326.3)
- #005116
#005116
oklch(37.9% 0.115 146.2)
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 #661B69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Purple #720058 ΔE 0.044
- Grape Purple #5D1451 ΔE 0.046
- Velvet #750851 ΔE 0.054
- Purple #800080 ΔE 0.066
- Royal Purple #4B006E ΔE 0.076
- Plum Purple #4E0550 ΔE 0.076
- Red Purple #820747 ΔE 0.085
- Indigo #4B0082 ΔE 0.086
Use #661B69 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.