#6A3574
Closest named color: Rebecca Purple (#663399). oklch(42.4% 0.116 321.1), rgb(106, 53, 116).
Aa
White text reads best on this color (8.84:1).
About this color
#6A3574 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.116 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.063 away. White text reads best on it, at 8.84:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.37:1 |
| White text | 8.84:1 |
Values
| HEX | #6A3574 |
| RGB | rgb(106, 53, 116) |
| HSL | hsl(290, 37%, 33%) |
| OKLCH | oklch(42.4% 0.116 321.1) |
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 #6A3574 | 8.84:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #6A3574 | 2.37:1 | Fails | Lc 14.1 | Not readable |
| #6A3574 text on white | 8.84:1 | AAA | Lc 89.9 | Fine for body text |
| #6A3574 text on black | 2.37:1 | Fails | Lc -12.4 | 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 800.
-
Step 50
50
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#F0E6F2
oklch(93.6% 0.019 320.6)
-
Step 200
200
#E5D1E9
oklch(88.4% 0.039 320.6)
-
Step 300
300
#D5B3DC
oklch(80.9% 0.068 320.5)
-
Step 400
400
#C08ACA
oklch(70.8% 0.109 321.1)
-
Step 500
500
#AF6BBC
oklch(63.1% 0.139 321)
-
Step 600
600
#9A51A8
oklch(55.6% 0.15 321)
-
Step 700
700
#844190
oklch(49.2% 0.14 321.4)
-
Step 800
800 (this color)
#6A3574
oklch(42.4% 0.116 321.1)
-
Step 900
900
#572F5E
oklch(37.6% 0.091 321.5)
-
Step 950
950
#331C37
oklch(26.9% 0.058 321.5)
#6A3574 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) | #2A4676 | 0.109 |
| Deuteranopia (no green cones) | #3B4C72 | 0.096 |
| Tritanopia (no blue cones) | #6B3E4F | 0.073 |
| Achromatopsia (no color) | #4A4A4A | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6A3574
#6A3574
oklch(42.4% 0.116 321.1)
- #235D19
#235D19
oklch(42.4% 0.117 140.9)
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 #6A3574, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.063
- Dark Slate Blue #483D8B ΔE 0.074
- Light Eggplant #894585 ΔE 0.078
- Purple #800080 ΔE 0.079
- Rich Purple #720058 ΔE 0.084
- Velvet #750851 ΔE 0.084
- Twilight #4E518B ΔE 0.085
- Brownish Purple #76424E ΔE 0.085
Use #6A3574 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.