#6A75C8
Closest named color: Windows Blue (#3778BF). oklch(59.1% 0.127 276.1), rgb(106, 117, 200).
Aa
Black text reads best on this color (4.99:1).
About this color
#6A75C8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.127 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.058 away. Black text reads best on it, at 4.99:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.99:1 |
| White text | 4.20:1 |
Values
| HEX | #6A75C8 |
| RGB | rgb(106, 117, 200) |
| HSL | hsl(233, 46%, 60%) |
| OKLCH | oklch(59.1% 0.127 276.1) |
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 #6A75C8 | 4.20:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #6A75C8 | 4.99:1 | AA | Lc 35.2 | Non-text elements, placeholder text |
| #6A75C8 text on white | 4.20:1 | AA large text | Lc 68.9 | Content text, not long reading |
| #6A75C8 text on black | 4.99:1 | 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 600.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D3D8EF
oklch(88.5% 0.032 276)
-
Step 300
300
#B6BEE6
oklch(80.9% 0.057 276.2)
-
Step 400
400
#919CDA
oklch(70.8% 0.092 276.1)
-
Step 500
500
#7782CF
oklch(63.1% 0.116 276.4)
-
Step 600
600 (this color)
#6A75C8
oklch(59.1% 0.127 276.1)
-
Step 700
700
#5058A2
oklch(49% 0.118 276.5)
-
Step 800
800
#414984
oklch(42.8% 0.098 275.7)
-
Step 900
900
#373D6A
oklch(37.7% 0.077 276.3)
-
Step 950
950
#20243E
oklch(27% 0.049 276)
#6A75C8 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) | #557FCB | 0.034 |
| Deuteranopia (no green cones) | #4D78C6 | 0.035 |
| Tritanopia (no blue cones) | #488695 | 0.111 |
| Achromatopsia (no color) | #7B7B7B | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6A75C8
#6A75C8
oklch(59.1% 0.127 276.1)
- #937C00
#937C00
oklch(59% 0.121 96)
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 #6A75C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.058
- Dark Periwinkle #665FD1 ΔE 0.060
- Cool Blue #4984B8 ΔE 0.063
- Soft Blue #6488EA ΔE 0.064
- Steel Blue #4682B4 ΔE 0.065
- Deep Lilac #966EBD ΔE 0.068
- Off Blue #5684AE ΔE 0.068
- Medium Purple #9370DB ΔE 0.069
Use #6A75C8 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.