#6C6CE4
Closest named color: Medium Slate Blue (#7B68EE). oklch(59.3% 0.177 279.5), rgb(108, 108, 228).
Aa
Black text reads best on this color (4.90:1).
About this color
#6C6CE4 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.177 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.028 away. Black text reads best on it, at 4.90:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.90:1 |
| White text | 4.28:1 |
Values
| HEX | #6C6CE4 |
| RGB | rgb(108, 108, 228) |
| HSL | hsl(240, 69%, 66%) |
| OKLCH | oklch(59.3% 0.177 279.5) |
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 #6C6CE4 | 4.28:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #6C6CE4 | 4.90:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #6C6CE4 text on white | 4.28:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #6C6CE4 text on black | 4.90:1 | AA | Lc -32.3 | 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
#E6E9FA
oklch(93.7% 0.023 277.9)
-
Step 200
200
#D2D7F7
oklch(88.5% 0.044 278.4)
-
Step 300
300
#B5BCF4
oklch(80.9% 0.079 278.9)
-
Step 400
400
#9197EF
oklch(70.8% 0.128 279.6)
-
Step 500
500
#777AE9
oklch(63% 0.164 279.4)
-
Step 600
600 (this color)
#6C6CE4
oklch(59.3% 0.177 279.5)
-
Step 700
700
#524FBB
oklch(49.2% 0.165 279.7)
-
Step 800
800
#434197
oklch(42.7% 0.137 279.9)
-
Step 900
900
#383878
oklch(37.7% 0.106 280)
-
Step 950
950
#202146
oklch(26.8% 0.068 279.6)
#6C6CE4 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) | #297FE8 | 0.073 |
| Deuteranopia (no green cones) | #1576E1 | 0.077 |
| Tritanopia (no blue cones) | #37879E | 0.153 |
| Achromatopsia (no color) | #7A7A7A | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C6CE4
#6C6CE4
oklch(59.3% 0.177 279.5)
- #907F00
#907F00
oklch(59.4% 0.123 99.9)
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 #6C6CE4, closest first.
No curated palette has a color within ΔE 0.04 of #6C6CE4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.028
- Cornflower #6A79F7 ΔE 0.040
- Dark Periwinkle #665FD1 ΔE 0.042
- Light Indigo #6D5ACF ΔE 0.051
- Slate Blue #6A5ACD ΔE 0.053
- Royal Blue #4169E1 ΔE 0.054
- Purpley #8756E4 ΔE 0.060
- Neon Blue #4361EE ΔE 0.063
Use #6C6CE4 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.