#6B6DE8
Closest named color: Medium Slate Blue (#7B68EE). oklch(59.7% 0.182 278.7), rgb(107, 109, 232).
Aa
Black text reads best on this color (4.97:1).
About this color
#6B6DE8 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.182 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.027 away. Black text reads best on it, at 4.97:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.182) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.97:1 |
| White text | 4.21:1 |
Values
| HEX | #6B6DE8 |
| RGB | rgb(107, 109, 232) |
| HSL | hsl(239, 73%, 66%) |
| OKLCH | oklch(59.7% 0.182 278.7) |
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 #6B6DE8 | 4.21:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #6B6DE8 | 4.97:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #6B6DE8 text on white | 4.21:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #6B6DE8 text on black | 4.97:1 | AA | Lc -32.8 | 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 500.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E9FB
oklch(93.7% 0.024 278.4)
-
Step 200
200
#D1D7FA
oklch(88.6% 0.049 277.7)
-
Step 300
300
#B3BBFA
oklch(80.8% 0.089 278.6)
-
Step 400
400
#8E96F7
oklch(70.8% 0.141 278.6)
-
Step 500
500 (this color)
#6B6DE8
oklch(59.7% 0.182 278.7)
-
Step 600
600
#5F5DE3
oklch(55.7% 0.198 278.5)
-
Step 700
700
#4F4BC5
oklch(49.1% 0.184 278.6)
-
Step 800
800
#413F9F
oklch(42.8% 0.151 278.8)
-
Step 900
900
#36377E
oklch(37.8% 0.117 278.6)
-
Step 950
950
#1F214A
oklch(27.1% 0.075 278.1)
#6B6DE8 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) | #2480EC | 0.073 |
| Deuteranopia (no green cones) | #0576E5 | 0.078 |
| Tritanopia (no blue cones) | #2F89A0 | 0.158 |
| Achromatopsia (no color) | #7B7B7B | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B6DE8
#6B6DE8
oklch(59.7% 0.182 278.7)
- #927F00
#927F00
oklch(59.6% 0.123 98.7)
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 #6B6DE8, closest first.
No curated palette has a color within ΔE 0.04 of #6B6DE8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.027
- Cornflower #6A79F7 ΔE 0.035
- Dark Periwinkle #665FD1 ΔE 0.047
- Royal Blue #4169E1 ΔE 0.055
- Light Indigo #6D5ACF ΔE 0.056
- Slate Blue #6A5ACD ΔE 0.058
- Neon Blue #4361EE ΔE 0.062
- Purpley #8756E4 ΔE 0.062
Use #6B6DE8 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.