#6774C8
Closest named color: Windows Blue (#3778BF). oklch(58.7% 0.129 275.1), rgb(103, 116, 200).
Aa
Black text reads best on this color (4.90:1).
About this color
#6774C8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.129 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.055 away. Black text reads best on it, at 4.90:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.90:1 |
| White text | 4.27:1 |
Values
| HEX | #6774C8 |
| RGB | rgb(103, 116, 200) |
| HSL | hsl(232, 47%, 59%) |
| OKLCH | oklch(58.7% 0.129 275.1) |
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 #6774C8 | 4.27:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #6774C8 | 4.90:1 | AA | Lc 34.6 | Non-text elements, placeholder text |
| #6774C8 text on white | 4.27:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #6774C8 text on black | 4.90:1 | AA | Lc -32.2 | 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
#D2D8EF
oklch(88.5% 0.032 274.1)
-
Step 300
300
#B5BEE7
oklch(80.8% 0.059 275.3)
-
Step 400
400
#909CDB
oklch(70.7% 0.093 275.5)
-
Step 500
500
#7582D1
oklch(63% 0.12 275.3)
-
Step 600
600 (this color)
#6774C8
oklch(58.7% 0.129 275.1)
-
Step 700
700
#4E59A4
oklch(49.2% 0.12 274.8)
-
Step 800
800
#404985
oklch(42.8% 0.099 275)
-
Step 900
900
#363D6A
oklch(37.6% 0.077 275.4)
-
Step 950
950
#20243E
oklch(27% 0.049 276)
#6774C8 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) | #537ECB | 0.033 |
| Deuteranopia (no green cones) | #4A77C6 | 0.035 |
| Tritanopia (no blue cones) | #418694 | 0.115 |
| Achromatopsia (no color) | #7A7A7A | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6774C8
#6774C8
oklch(58.7% 0.129 275.1)
- #937B00
#937B00
oklch(58.8% 0.121 95.3)
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 #6774C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.055
- Dark Periwinkle #665FD1 ΔE 0.057
- Cool Blue #4984B8 ΔE 0.063
- Steel Blue #4682B4 ΔE 0.064
- Soft Blue #6488EA ΔE 0.066
- Slate Blue #6A5ACD ΔE 0.066
- Light Indigo #6D5ACF ΔE 0.067
- French Blue #436BAD ΔE 0.067
Use #6774C8 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.