#6E3788
Closest named color: Rebecca Purple (#663399). oklch(44.4% 0.137 313.5), rgb(110, 55, 136).
Aa
White text reads best on this color (8.18:1).
About this color
#6E3788 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.137 and its hue 314°. 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 8.18:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.56:1 |
| White text | 8.18:1 |
Values
| HEX | #6E3788 |
| RGB | rgb(110, 55, 136) |
| HSL | hsl(281, 42%, 37%) |
| OKLCH | oklch(44.4% 0.137 313.5) |
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 #6E3788 | 8.18:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #6E3788 | 2.56:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #6E3788 text on white | 8.18:1 | AAA | Lc 87.9 | Fine for body text |
| #6E3788 text on black | 2.56:1 | Fails | Lc -14.3 | 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
#EFE6F5
oklch(93.6% 0.022 312.2)
-
Step 200
200
#E4D1EE
oklch(88.5% 0.044 314.1)
-
Step 300
300
#D3B2E6
oklch(80.9% 0.08 313)
-
Step 400
400
#BD87D9
oklch(70.6% 0.129 313.5)
-
Step 500
500
#AC67CE
oklch(63.1% 0.163 313.5)
-
Step 600
600
#974BBB
oklch(55.5% 0.178 313.4)
-
Step 700
700
#813BA1
oklch(49% 0.166 313.6)
-
Step 800
800 (this color)
#6E3788
oklch(44.4% 0.137 313.5)
-
Step 900
900
#552D69
oklch(37.7% 0.107 313.2)
-
Step 950
950
#321B3D
oklch(27% 0.067 313.9)
#6E3788 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) | #1F4C8B | 0.123 |
| Deuteranopia (no green cones) | #345086 | 0.108 |
| Tritanopia (no blue cones) | #6C455A | 0.092 |
| Achromatopsia (no color) | #4F4F4F | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6E3788
#6E3788
oklch(44.4% 0.137 313.5)
- #356100
#356100
oklch(44.3% 0.126 133.3)
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 #6E3788, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.035
- Light Eggplant #894585 ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.070
- Purple #800080 ΔE 0.074
- Blueberry #464196 ΔE 0.076
- Warm Purple #952E8F ΔE 0.077
- Twilight #4E518B ΔE 0.081
- Dark Magenta #8B008B ΔE 0.081
Use #6E3788 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.