#6680AE
Closest named color: Off Blue (#5684AE). oklch(59.8% 0.077 261.5), rgb(102, 128, 174).
Aa
Black text reads best on this color (5.26:1).
About this color
#6680AE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.077 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.020 away. Black text reads best on it, at 5.26:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.26:1 |
| White text | 3.98:1 |
Values
| HEX | #6680AE |
| RGB | rgb(102, 128, 174) |
| HSL | hsl(218, 31%, 54%) |
| OKLCH | oklch(59.8% 0.077 261.5) |
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 #6680AE | 3.98:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #6680AE | 5.26:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #6680AE text on white | 3.98:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #6680AE text on black | 5.26:1 | AA | Lc -34.5 | 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 500.
-
Step 50
50
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D2DAE7
oklch(88.6% 0.02 260.2)
-
Step 300
300
#B3C1DA
oklch(80.8% 0.039 262.1)
-
Step 400
400
#8CA1C7
oklch(70.6% 0.061 262.2)
-
Step 500
500 (this color)
#6680AE
oklch(59.8% 0.077 261.5)
-
Step 600
600
#5873A5
oklch(55.6% 0.085 262.2)
-
Step 700
700
#48618D
oklch(49.2% 0.077 261.3)
-
Step 800
800
#3B4F72
oklch(42.7% 0.064 261.2)
-
Step 900
900
#33425C
oklch(37.8% 0.049 261.1)
-
Step 950
950
#1E2736
oklch(27.1% 0.031 260.5)
#6680AE 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) | #7083B0 | 0.016 |
| Deuteranopia (no green cones) | #687CAD | 0.011 |
| Tritanopia (no blue cones) | #4D8A90 | 0.069 |
| Achromatopsia (no color) | #7F7F7F | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6680AE
#6680AE
oklch(59.8% 0.077 261.5)
- #977B48
#977B48
oklch(59.8% 0.077 81.4)
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 #6680AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.020
- Dusty Blue #5A86AD ΔE 0.021
- Cool Blue #4984B8 ΔE 0.033
- Steel Blue #4682B4 ΔE 0.034
- Faded Blue #658CBB ΔE 0.035
- Stormy Blue #507B9C ΔE 0.042
- Lavender Gray #7E7F9A ΔE 0.043
- Slate Gray #708090 ΔE 0.048
Use #6680AE 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.