#6680CB
Closest named color: Faded Blue (#658CBB). oklch(61.3% 0.118 268.3), rgb(102, 128, 203).
Aa
Black text reads best on this color (5.51:1).
About this color
#6680CB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.118 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.046 away. Black text reads best on it, at 5.51:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.51:1 |
| White text | 3.80:1 |
Values
| HEX | #6680CB |
| RGB | rgb(102, 128, 203) |
| HSL | hsl(225, 49%, 60%) |
| OKLCH | oklch(61.3% 0.118 268.3) |
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 #6680CB | 3.80:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #6680CB | 5.51:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #6680CB text on white | 3.80:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #6680CB text on black | 5.51:1 | AA | Lc -36.2 | 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 500.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D0D9EF
oklch(88.5% 0.032 268)
-
Step 300
300
#B1C0E7
oklch(80.9% 0.058 268.6)
-
Step 400
400
#889FDB
oklch(70.8% 0.092 267.9)
-
Step 500
500 (this color)
#6680CB
oklch(61.3% 0.118 268.3)
-
Step 600
600
#546EBE
oklch(55.6% 0.128 268.5)
-
Step 700
700
#445CA4
oklch(49.2% 0.119 268)
-
Step 800
800
#384B85
oklch(42.7% 0.099 268.3)
-
Step 900
900
#303F6A
oklch(37.6% 0.076 268.1)
-
Step 950
950
#1C253E
oklch(26.9% 0.049 268)
#6680CB 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) | #6387CE | 0.018 |
| Deuteranopia (no green cones) | #587FC9 | 0.017 |
| Tritanopia (no blue cones) | #3B909C | 0.106 |
| Achromatopsia (no color) | #838383 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6680CB
#6680CB
oklch(61.3% 0.118 268.3)
- #A17F19
#A17F19
oklch(61.3% 0.118 88.4)
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 #6680CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.046
- Cool Blue #4984B8 ΔE 0.047
- Soft Blue #6488EA ΔE 0.048
- Steel Blue #4682B4 ΔE 0.053
- Dark Sky Blue #448EE4 ΔE 0.053
- Off Blue #5684AE ΔE 0.053
- Dusty Blue #5A86AD ΔE 0.056
- Windows Blue #3778BF ΔE 0.059
Use #6680CB 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.