#6B6FEB
Closest named color: Medium Slate Blue (#7B68EE). oklch(60.3% 0.183 278), rgb(107, 111, 235).
Aa
Black text reads best on this color (5.09:1).
About this color
#6B6FEB is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.183 and its hue 278°. 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 5.09:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 5.09:1 |
| White text | 4.11:1 |
Values
| HEX | #6B6FEB |
| RGB | rgb(107, 111, 235) |
| HSL | hsl(238, 76%, 67%) |
| OKLCH | oklch(60.3% 0.183 278) |
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 #6B6FEB | 4.11:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #6B6FEB | 5.09:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #6B6FEB text on white | 4.11:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #6B6FEB text on black | 5.09:1 | AA | Lc -33.7 | 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
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D1D7FB
oklch(88.6% 0.05 277.9)
-
Step 300
300
#B3BBFA
oklch(80.8% 0.089 278.6)
-
Step 400
400
#8D96F8
oklch(70.8% 0.143 278.1)
-
Step 500
500 (this color)
#6B6FEB
oklch(60.3% 0.183 278)
-
Step 600
600
#5E5DE4
oklch(55.7% 0.199 278.1)
-
Step 700
700
#4E4BC6
oklch(49.1% 0.186 278.1)
-
Step 800
800
#3F3FA0
oklch(42.7% 0.153 277.7)
-
Step 900
900
#35377F
oklch(37.8% 0.119 277.8)
-
Step 950
950
#1F214A
oklch(27.1% 0.075 278.1)
#6B6FEB 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) | #2682EF | 0.072 |
| Deuteranopia (no green cones) | #0578E8 | 0.077 |
| Tritanopia (no blue cones) | #2B8BA2 | 0.160 |
| Achromatopsia (no color) | #7D7D7D | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B6FEB
#6B6FEB
oklch(60.3% 0.183 278)
- #958100
#958100
oklch(60.3% 0.125 98.3)
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 #6B6FEB, closest first.
No curated palette has a color within ΔE 0.04 of #6B6FEB.
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 0.028
- Dark Periwinkle #665FD1 ΔE 0.054
- Royal Blue #4169E1 ΔE 0.057
- Light Indigo #6D5ACF ΔE 0.062
- Soft Blue #6488EA ΔE 0.062
- Neon Blue #4361EE ΔE 0.064
- Slate Blue #6A5ACD ΔE 0.065
Use #6B6FEB 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.