#6775C4
Closest named color: Windows Blue (#3778BF). oklch(58.7% 0.122 274.4), rgb(103, 117, 196).
Aa
Black text reads best on this color (4.91:1).
About this color
#6775C4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.122 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.052 away. Black text reads best on it, at 4.91:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.91:1 |
| White text | 4.26:1 |
Values
| HEX | #6775C4 |
| RGB | rgb(103, 117, 196) |
| HSL | hsl(231, 44%, 59%) |
| OKLCH | oklch(58.7% 0.122 274.4) |
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 #6775C4 | 4.26:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #6775C4 | 4.91:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #6775C4 text on white | 4.26:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #6775C4 text on black | 4.91:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D3D8EE
oklch(88.5% 0.031 275.6)
-
Step 300
300
#B5BFE5
oklch(81% 0.055 273.5)
-
Step 400
400
#909DD8
oklch(70.8% 0.088 274.4)
-
Step 500
500
#7583CD
oklch(63% 0.113 274.6)
-
Step 600
600 (this color)
#6775C4
oklch(58.7% 0.122 274.4)
-
Step 700
700
#4E5AA0
oklch(49.2% 0.112 274.2)
-
Step 800
800
#404A82
oklch(42.8% 0.093 274.2)
-
Step 900
900
#363E68
oklch(37.7% 0.073 274.2)
-
Step 950
950
#20243D
oklch(26.9% 0.047 275.9)
#6775C4 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) | #577EC7 | 0.028 |
| Deuteranopia (no green cones) | #4E77C2 | 0.030 |
| Tritanopia (no blue cones) | #448593 | 0.107 |
| Achromatopsia (no color) | #7A7A7A | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6775C4
#6775C4
oklch(58.7% 0.122 274.4)
- #937A00
#937A00
oklch(58.6% 0.12 94.6)
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 #6775C4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.052
- Cool Blue #4984B8 ΔE 0.057
- Steel Blue #4682B4 ΔE 0.059
- Dark Periwinkle #665FD1 ΔE 0.063
- Off Blue #5684AE ΔE 0.063
- French Blue #436BAD ΔE 0.065
- Dusty Blue #5A86AD ΔE 0.067
- Faded Blue #658CBB ΔE 0.068
Use #6775C4 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.