#6C388E
Closest named color: Rebecca Purple (#663399). oklch(44.7% 0.142 309.7), rgb(108, 56, 142).
Aa
White text reads best on this color (8.09:1).
About this color
#6C388E is a dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.142 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.026 away. White text reads best on it, at 8.09:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | vivid (0.142) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.59:1 |
| White text | 8.09:1 |
Values
| HEX | #6C388E |
| RGB | rgb(108, 56, 142) |
| HSL | hsl(276, 43%, 39%) |
| OKLCH | oklch(44.7% 0.142 309.7) |
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 #6C388E | 8.09:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #6C388E | 2.59:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #6C388E text on white | 8.09:1 | AAA | Lc 87.6 | Fine for body text |
| #6C388E text on black | 2.59:1 | Fails | Lc -14.5 | 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 800.
-
Step 50
50
#F8F3FB
oklch(97% 0.012 313.2)
-
Step 100
100
#EFE6F6
oklch(93.7% 0.023 310.7)
-
Step 200
200
#E2D1F1
oklch(88.4% 0.047 309.2)
-
Step 300
300
#D1B2E9
oklch(80.9% 0.083 310.1)
-
Step 400
400
#BA88DE
oklch(70.7% 0.132 310.1)
-
Step 500
500
#A867D5
oklch(63% 0.17 309.7)
-
Step 600
600
#944BC2
oklch(55.6% 0.185 310)
-
Step 700
700
#7E3BA8
oklch(49.1% 0.172 309.8)
-
Step 800
800 (this color)
#6C388E
oklch(44.7% 0.142 309.7)
-
Step 900
900
#532D6D
oklch(37.7% 0.111 309.5)
-
Step 950
950
#311B40
oklch(27% 0.071 309.9)
#6C388E 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) | #184D91 | 0.122 |
| Deuteranopia (no green cones) | #2E518C | 0.109 |
| Tritanopia (no blue cones) | #67485D | 0.099 |
| Achromatopsia (no color) | #505050 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C388E
#6C388E
oklch(44.7% 0.142 309.7)
- #3E6000
#3E6000
oklch(44.6% 0.119 129.5)
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 #6C388E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.026
- Dark Slate Blue #483D8B ΔE 0.066
- Blueberry #464196 ΔE 0.070
- Light Eggplant #894585 ΔE 0.071
- Twilight #4E518B ΔE 0.078
- Purple #800080 ΔE 0.079
- Warm Purple #952E8F ΔE 0.081
- Dark Magenta #8B008B ΔE 0.084
Use #6C388E 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.