#6B6BB2
Closest named color: French Blue (#436BAD). oklch(55.9% 0.109 282.3), rgb(107, 107, 178).
Aa
White text reads best on this color (4.80:1).
About this color
#6B6BB2 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 56%, its chroma 0.109 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.052 away. White text reads best on it, at 4.80:1.
| Hue family | Purples |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.37:1 |
| White text | 4.80:1 |
Values
| HEX | #6B6BB2 |
| RGB | rgb(107, 107, 178) |
| HSL | hsl(240, 32%, 56%) |
| OKLCH | oklch(55.9% 0.109 282.3) |
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 #6B6BB2 | 4.80:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #6B6BB2 | 4.37:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #6B6BB2 text on white | 4.80:1 | AA | Lc 73.2 | Content text, not long reading |
| #6B6BB2 text on black | 4.37:1 | AA large text | Lc -28.4 | Dividers and decoration only |
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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E8E9F3
oklch(93.6% 0.013 281.6)
-
Step 200
200
#D6D7EB
oklch(88.4% 0.027 283.5)
-
Step 300
300
#BBBDE0
oklch(80.8% 0.049 282.7)
-
Step 400
400
#999BD1
oklch(70.8% 0.079 282.5)
-
Step 500
500
#8081C4
oklch(63% 0.1 282.5)
-
Step 600
600 (this color)
#6B6BB2
oklch(55.9% 0.109 282.3)
-
Step 700
700
#595898
oklch(49.1% 0.101 282.7)
-
Step 800
800
#48487B
oklch(42.6% 0.084 282.3)
-
Step 900
900
#3C3D63
oklch(37.7% 0.065 281.7)
-
Step 950
950
#23243A
oklch(27% 0.041 281.3)
#6B6BB2 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) | #5375B5 | 0.038 |
| Deuteranopia (no green cones) | #4F70B0 | 0.038 |
| Tritanopia (no blue cones) | #567986 | 0.094 |
| Achromatopsia (no color) | #727272 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B6BB2
#6B6BB2
oklch(55.9% 0.109 282.3)
- #817618
#817618
oklch(55.9% 0.109 102.3)
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 #6B6BB2, closest first.
No curated palette has a color within ΔE 0.04 of #6B6BB2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.052
- Dark Lavender #856798 ΔE 0.055
- Dark Periwinkle #665FD1 ΔE 0.062
- Deep Lavender #8D5EB7 ΔE 0.062
- Flat Blue #3C73A8 ΔE 0.062
- Iris #6258C4 ΔE 0.063
- Windows Blue #3778BF ΔE 0.064
- Slate Blue #6A5ACD ΔE 0.065
Use #6B6BB2 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.