#6A3987
Closest named color: Rebecca Purple (#663399). oklch(44.1% 0.131 311.2), rgb(106, 57, 135).
Aa
White text reads best on this color (8.24:1).
About this color
#6A3987 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.131 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.035 away. White text reads best on it, at 8.24:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.131) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.54:1 |
| White text | 8.24:1 |
Values
| HEX | #6A3987 |
| RGB | rgb(106, 57, 135) |
| HSL | hsl(278, 41%, 38%) |
| OKLCH | oklch(44.1% 0.131 311.2) |
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 #6A3987 | 8.24:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #6A3987 | 2.54:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #6A3987 text on white | 8.24:1 | AAA | Lc 88.1 | Fine for body text |
| #6A3987 text on black | 2.54:1 | Fails | Lc -14.0 | 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
#F8F4FB
oklch(97.2% 0.01 311.2)
-
Step 100
100
#EFE6F5
oklch(93.6% 0.022 312.2)
-
Step 200
200
#E2D2EE
oklch(88.5% 0.042 310.9)
-
Step 300
300
#D1B3E6
oklch(80.9% 0.077 311.2)
-
Step 400
400
#B98AD9
oklch(70.7% 0.123 310.8)
-
Step 500
500
#A86ACE
oklch(63.1% 0.157 311.3)
-
Step 600
600
#934FBB
oklch(55.6% 0.171 311.1)
-
Step 700
700
#7D3FA1
oklch(49% 0.159 311.1)
-
Step 800
800 (this color)
#6A3987
oklch(44.1% 0.131 311.2)
-
Step 900
900
#532F69
oklch(37.7% 0.103 311.1)
-
Step 950
950
#311C3D
oklch(27% 0.065 312.1)
#6A3987 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) | #214C8A | 0.113 |
| Deuteranopia (no green cones) | #335085 | 0.101 |
| Tritanopia (no blue cones) | #67475A | 0.091 |
| Achromatopsia (no color) | #4F4F4F | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6A3987
#6A3987
oklch(44.1% 0.131 311.2)
- #3A5F00
#3A5F00
oklch(44% 0.12 130.9)
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 #6A3987, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.035
- Dark Slate Blue #483D8B ΔE 0.062
- Blueberry #464196 ΔE 0.069
- Light Eggplant #894585 ΔE 0.071
- Twilight #4E518B ΔE 0.073
- Purple #800080 ΔE 0.081
- Dusk #4E5481 ΔE 0.083
- Warm Purple #952E8F ΔE 0.085
Use #6A3987 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.