#6770AF
Closest named color: French Blue (#436BAD). oklch(56.5% 0.098 276.6), rgb(103, 112, 175).
Aa
White text reads best on this color (4.65:1).
About this color
#6770AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.098 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.049 away. White text reads best on it, at 4.65:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.51:1 |
| White text | 4.65:1 |
Values
| HEX | #6770AF |
| RGB | rgb(103, 112, 175) |
| HSL | hsl(233, 31%, 55%) |
| OKLCH | oklch(56.5% 0.098 276.6) |
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 #6770AF | 4.65:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #6770AF | 4.51:1 | AA | Lc 31.8 | Non-text elements, placeholder text |
| #6770AF text on white | 4.65:1 | AA | Lc 72.2 | Content text, not long reading |
| #6770AF text on black | 4.51:1 | AA | Lc -29.4 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EA
oklch(88.5% 0.025 275.9)
-
Step 300
300
#B9BFDE
oklch(81% 0.044 276.7)
-
Step 400
400
#959DCD
oklch(70.7% 0.071 277.1)
-
Step 500
500
#7B84C0
oklch(63% 0.091 276.9)
-
Step 600
600 (this color)
#6770AF
oklch(56.5% 0.098 276.6)
-
Step 700
700
#535B94
oklch(49% 0.092 276.4)
-
Step 800
800
#444B78
oklch(42.8% 0.075 276)
-
Step 900
900
#393F61
oklch(37.8% 0.059 275.6)
-
Step 950
950
#222539
oklch(27.1% 0.037 277)
#6770AF 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) | #5A77B2 | 0.023 |
| Deuteranopia (no green cones) | #5572AE | 0.024 |
| Tritanopia (no blue cones) | #507D87 | 0.088 |
| Achromatopsia (no color) | #747474 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6770AF
#6770AF
oklch(56.5% 0.098 276.6)
- #877528
#877528
oklch(56.4% 0.098 95.8)
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 #6770AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.049
- Flat Blue #3C73A8 ΔE 0.052
- Dull Blue #49759C ΔE 0.053
- Windows Blue #3778BF ΔE 0.056
- Stormy Blue #507B9C ΔE 0.056
- Dark Lavender #856798 ΔE 0.057
- Steel Blue #4682B4 ΔE 0.057
- Off Blue #5684AE ΔE 0.058
Use #6770AF 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.