#6C3297
Closest named color: Rebecca Purple (#663399). oklch(44.5% 0.161 307.5), rgb(108, 50, 151).
Aa
White text reads best on this color (8.26:1).
About this color
#6C3297 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.161 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.012 away. White text reads best on it, at 8.26:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.161) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.54:1 |
| White text | 8.26:1 |
Values
| HEX | #6C3297 |
| RGB | rgb(108, 50, 151) |
| HSL | hsl(274, 50%, 39%) |
| OKLCH | oklch(44.5% 0.161 307.5) |
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 #6C3297 | 8.26:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #6C3297 | 2.54:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #6C3297 text on white | 8.26:1 | AAA | Lc 88.0 | Fine for body text |
| #6C3297 text on black | 2.54:1 | Fails | Lc -14.2 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE5F8
oklch(93.5% 0.027 309.2)
-
Step 200
200
#E2D1F5
oklch(88.6% 0.052 306.6)
-
Step 300
300
#D1B1F0
oklch(81% 0.093 307.5)
-
Step 400
400
#BA85E9
oklch(70.8% 0.151 307.4)
-
Step 500
500
#A962E2
oklch(63.2% 0.192 307.4)
-
Step 600
600
#9543CF
oklch(55.6% 0.209 307.8)
-
Step 700
700
#7F34B4
oklch(49.2% 0.195 307.4)
-
Step 800
800 (this color)
#6C3297
oklch(44.5% 0.161 307.5)
-
Step 900
900
#542A74
oklch(37.8% 0.125 307.6)
-
Step 950
950
#311944
oklch(27% 0.08 307.6)
#6C3297 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) | #004C9A | 0.135 |
| Deuteranopia (no green cones) | #1D4F95 | 0.125 |
| Tritanopia (no blue cones) | #654760 | 0.113 |
| Achromatopsia (no color) | #4E4E4E | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C3297
#6C3297
oklch(44.5% 0.161 307.5)
- #425F00
#425F00
oklch(44.6% 0.116 127.4)
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 #6C3297, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.012
- Grape #7209B7 ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.071
- Blueberry #464196 ΔE 0.073
- Purple #800080 ΔE 0.076
- Dark Magenta #8B008B ΔE 0.080
- Chrysanthemum #560BAD ΔE 0.081
- Warm Purple #952E8F ΔE 0.084
Use #6C3297 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.