#66276B
Closest named color: Rich Purple (#720058). oklch(39.3% 0.128 324.7), rgb(102, 39, 107).
Aa
White text reads best on this color (10.15:1).
About this color
#66276B is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.128 and its hue 325°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Purple (#720058), ΔE 0.057 away. White text reads best on it, at 10.15:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Rich Purple (#720058) |
| Black text | 2.06:1 |
| White text | 10.15:1 |
Values
| HEX | #66276B |
| RGB | rgb(102, 39, 107) |
| HSL | hsl(296, 47%, 29%) |
| OKLCH | oklch(39.3% 0.128 324.7) |
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 #66276B | 10.15:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #66276B | 2.06:1 | Fails | Lc 11.0 | Not readable |
| #66276B text on white | 10.15:1 | AAA | Lc 93.0 | Preferred for body text |
| #66276B text on black | 2.06:1 | Fails | Lc -9.5 | 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
#FAF3FA
oklch(97.2% 0.012 325.7)
-
Step 100
100
#F4E4F4
oklch(93.6% 0.027 325.8)
-
Step 200
200
#ECCEED
oklch(88.6% 0.053 325)
-
Step 300
300
#E0ABE3
oklch(80.8% 0.096 324.7)
-
Step 400
400
#CF7CD5
oklch(70.6% 0.154 324.6)
-
Step 500
500
#C156CA
oklch(63.1% 0.196 324.5)
-
Step 600
600
#AD34B6
oklch(55.6% 0.214 325)
-
Step 700
700
#94259D
oklch(49.1% 0.198 324.7)
-
Step 800
800
#78217F
oklch(42.6% 0.165 324.7)
-
Step 900
900 (this color)
#66276B
oklch(39.3% 0.128 324.7)
-
Step 950
950
#39153C
oklch(26.9% 0.082 324.5)
#66276B 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) | #1C3C6D | 0.128 |
| Deuteranopia (no green cones) | #334469 | 0.111 |
| Tritanopia (no blue cones) | #683145 | 0.075 |
| Achromatopsia (no color) | #414141 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66276B
#66276B
oklch(39.3% 0.128 324.7)
- #005611
#005611
oklch(39.4% 0.125 144.7)
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 #66276B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Purple #720058 ΔE 0.057
- Grape Purple #5D1451 ΔE 0.057
- Velvet #750851 ΔE 0.061
- Purple #800080 ΔE 0.072
- Rebecca Purple #663399 ΔE 0.078
- Red Purple #820747 ΔE 0.086
- Dark Slate Blue #483D8B ΔE 0.087
- Royal Purple #4B006E ΔE 0.089
Use #66276B 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.