#6B40A1
Closest named color: Rebecca Purple (#663399). oklch(47.1% 0.152 301.2), rgb(107, 64, 161).
Aa
White text reads best on this color (7.30:1).
About this color
#6B40A1 is a medium-dark, vivid purple. In OKLCH its lightness is 47%, its chroma 0.152 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.032 away. White text reads best on it, at 7.30:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #6B40A1 |
| RGB | rgb(107, 64, 161) |
| HSL | hsl(267, 43%, 44%) |
| OKLCH | oklch(47.1% 0.152 301.2) |
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 #6B40A1 | 7.30:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #6B40A1 | 2.87:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #6B40A1 text on white | 7.30:1 | AAA | Lc 85.0 | Fine for body text |
| #6B40A1 text on black | 2.87:1 | Fails | Lc -17.0 | Dividers and decoration only |
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 700.
-
Step 50
50
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F6
oklch(93.6% 0.021 301.1)
-
Step 200
200
#DDD3F0
oklch(88.4% 0.041 301.3)
-
Step 300
300
#C8B6E9
oklch(80.8% 0.073 300.9)
-
Step 400
400
#AD8FDE
oklch(70.7% 0.117 300.9)
-
Step 500
500
#9A71D5
oklch(63.2% 0.15 301.2)
-
Step 600
600
#8557C2
oklch(55.7% 0.163 301.1)
-
Step 700
700 (this color)
#6B40A1
oklch(47.1% 0.152 301.2)
-
Step 800
800
#5C3A88
oklch(42.7% 0.127 301.4)
-
Step 900
900
#4B336D
oklch(37.8% 0.098 300.9)
-
Step 950
950
#2C1E40
oklch(27% 0.063 301.3)
#6B40A1 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) | #0B56A4 | 0.117 |
| Deuteranopia (no green cones) | #23569F | 0.107 |
| Tritanopia (no blue cones) | #60546A | 0.115 |
| Achromatopsia (no color) | #565656 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B40A1
#6B40A1
oklch(47.1% 0.152 301.2)
- #526400
#526400
oklch(47.1% 0.113 121.1)
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 #6B40A1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.032
- Bluey Purple #6241C7 ΔE 0.063
- Blueberry #464196 ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.072
- Twilight #4E518B ΔE 0.074
- Iris #6258C4 ΔE 0.075
- Blue With A Hint Of Purple #533CC6 ΔE 0.075
- Light Eggplant #894585 ΔE 0.078
Use #6B40A1 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.