#6D6DDD
Closest named color: Medium Slate Blue (#7B68EE). oklch(59.1% 0.167 280), rgb(109, 109, 221).
Aa
Black text reads best on this color (4.88:1).
About this color
#6D6DDD is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.167 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.035 away. Black text reads best on it, at 4.88:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.88:1 |
| White text | 4.30:1 |
Values
| HEX | #6D6DDD |
| RGB | rgb(109, 109, 221) |
| HSL | hsl(240, 62%, 65%) |
| OKLCH | oklch(59.1% 0.167 280) |
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 #6D6DDD | 4.30:1 | AA large text | Lc -75.0 | Fine for body text |
| Black text on #6D6DDD | 4.88:1 | AA | Lc 34.6 | Non-text elements, placeholder text |
| #6D6DDD text on white | 4.30:1 | AA large text | Lc 69.5 | Content text, not long reading |
| #6D6DDD text on black | 4.88:1 | AA | Lc -32.1 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F9
oklch(93.7% 0.022 280.3)
-
Step 200
200
#D3D7F5
oklch(88.5% 0.041 279.5)
-
Step 300
300
#B6BCF1
oklch(80.9% 0.075 279.5)
-
Step 400
400
#9297EA
oklch(70.6% 0.121 280.2)
-
Step 500
500
#797CE3
oklch(63.2% 0.152 279.8)
-
Step 600
600 (this color)
#6D6DDD
oklch(59.1% 0.167 280)
-
Step 700
700
#5351B5
oklch(49.2% 0.154 280)
-
Step 800
800
#444393
oklch(42.8% 0.128 280.1)
-
Step 900
900
#383975
oklch(37.7% 0.1 279.7)
-
Step 950
950
#212244
oklch(27% 0.062 280.1)
#6D6DDD 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) | #357EE1 | 0.067 |
| Deuteranopia (no green cones) | #2A76DB | 0.069 |
| Tritanopia (no blue cones) | #40869B | 0.144 |
| Achromatopsia (no color) | #7A7A7A | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D6DDD
#6D6DDD
oklch(59.1% 0.167 280)
- #8F7E00
#8F7E00
oklch(59.1% 0.123 99.8)
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 #6D6DDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.035
- Dark Periwinkle #665FD1 ΔE 0.040
- Cornflower #6A79F7 ΔE 0.046
- Light Indigo #6D5ACF ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.050
- Royal Blue #4169E1 ΔE 0.057
- Medium Purple #9370DB ΔE 0.060
- Purpley #8756E4 ΔE 0.063
Use #6D6DDD 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.