#6F78AE
Closest named color: Off Blue (#5684AE). oklch(58.7% 0.083 276.3), rgb(111, 120, 174).
Aa
Black text reads best on this color (4.97:1).
About this color
#6F78AE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.083 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.043 away. Black text reads best on it, at 4.97:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 4.97:1 |
| White text | 4.22:1 |
Values
| HEX | #6F78AE |
| RGB | rgb(111, 120, 174) |
| HSL | hsl(231, 28%, 56%) |
| OKLCH | oklch(58.7% 0.083 276.3) |
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 #6F78AE | 4.22:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #6F78AE | 4.97:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #6F78AE text on white | 4.22:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #6F78AE text on black | 4.97:1 | AA | Lc -32.6 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D5D8E7
oklch(88.4% 0.021 276.9)
-
Step 300
300
#BABFD9
oklch(80.9% 0.037 276.9)
-
Step 400
400
#969EC7
oklch(70.7% 0.061 276.1)
-
Step 500
500
#7D86B8
oklch(63.2% 0.076 276.1)
-
Step 600
600 (this color)
#6F78AE
oklch(58.7% 0.083 276.3)
-
Step 700
700
#555D8D
oklch(49.2% 0.077 275.9)
-
Step 800
800
#454C72
oklch(42.7% 0.064 275.4)
-
Step 900
900
#3A3F5C
oklch(37.6% 0.05 276.2)
-
Step 950
950
#222536
oklch(27% 0.032 276.3)
#6F78AE 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) | #677EB0 | 0.018 |
| Deuteranopia (no green cones) | #6379AD | 0.016 |
| Tritanopia (no blue cones) | #5D828B | 0.074 |
| Achromatopsia (no color) | #7B7B7B | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6F78AE
#6F78AE
oklch(58.7% 0.083 276.3)
- #8B7C3F
#8B7C3F
oklch(58.6% 0.083 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 #6F78AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.043
- Dusty Blue #5A86AD ΔE 0.045
- Lavender Gray #7E7F9A ΔE 0.047
- Cool Blue #4984B8 ΔE 0.050
- Steel Blue #4682B4 ΔE 0.050
- Stormy Blue #507B9C ΔE 0.051
- Faded Blue #658CBB ΔE 0.054
- Dark Lavender #856798 ΔE 0.056
Use #6F78AE 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.