#6C6BE1
Closest named color: Medium Slate Blue (#7B68EE). oklch(58.9% 0.175 280), rgb(108, 107, 225).
Aa
Black text reads best on this color (4.82:1).
About this color
#6C6BE1 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.175 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.030 away. Black text reads best on it, at 4.82:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.82:1 |
| White text | 4.34:1 |
Values
| HEX | #6C6BE1 |
| RGB | rgb(108, 107, 225) |
| HSL | hsl(241, 66%, 65%) |
| OKLCH | oklch(58.9% 0.175 280) |
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 #6C6BE1 | 4.34:1 | AA large text | Lc -75.3 | Fine for body text |
| Black text on #6C6BE1 | 4.82:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #6C6BE1 text on white | 4.34:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #6C6BE1 text on black | 4.82:1 | AA | Lc -31.8 | 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 600.
-
Step 50
50
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D3D7F6
oklch(88.6% 0.043 279.7)
-
Step 300
300
#B6BCF3
oklch(81% 0.078 279.7)
-
Step 400
400
#9297ED
oklch(70.7% 0.125 280.1)
-
Step 500
500
#787AE8
oklch(63% 0.162 279.9)
-
Step 600
600 (this color)
#6C6BE1
oklch(58.9% 0.175 280)
-
Step 700
700
#524FB9
oklch(49% 0.162 279.8)
-
Step 800
800
#434196
oklch(42.6% 0.136 280)
-
Step 900
900
#383877
oklch(37.6% 0.105 280.1)
-
Step 950
950
#212146
oklch(26.9% 0.067 280.9)
#6C6BE1 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) | #2A7EE5 | 0.073 |
| Deuteranopia (no green cones) | #1975DE | 0.077 |
| Tritanopia (no blue cones) | #3A859C | 0.150 |
| Achromatopsia (no color) | #797979 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C6BE1
#6C6BE1
oklch(58.9% 0.175 280)
- #8E7E00
#8E7E00
oklch(59% 0.123 100.4)
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 #6C6BE1, closest first.
No curated palette has a color within ΔE 0.04 of #6C6BE1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.030
- Dark Periwinkle #665FD1 ΔE 0.038
- Cornflower #6A79F7 ΔE 0.044
- Light Indigo #6D5ACF ΔE 0.046
- Slate Blue #6A5ACD ΔE 0.049
- Royal Blue #4169E1 ΔE 0.054
- Purpley #8756E4 ΔE 0.059
- Neon Blue #4361EE ΔE 0.063
Use #6C6BE1 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.