#3A6780
Closest named color: Denim (#3B638C). oklch(49.2% 0.064 234.4), rgb(58, 103, 128).
Aa
White text reads best on this color (6.11:1).
About this color
#3A6780 is a medium-dark, muted blue. In OKLCH its lightness is 49%, its chroma 0.064 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.026 away. White text reads best on it, at 6.11:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.43:1 |
| White text | 6.11:1 |
Values
| HEX | #3A6780 |
| RGB | rgb(58, 103, 128) |
| HSL | hsl(201, 38%, 36%) |
| OKLCH | oklch(49.2% 0.064 234.4) |
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 #3A6780 | 6.11:1 | AA | Lc -85.6 | Fine for body text |
| Black text on #3A6780 | 3.43:1 | AA large text | Lc 23.6 | Dividers and decoration only |
| #3A6780 text on white | 6.11:1 | AA | Lc 80.4 | Fine for body text |
| #3A6780 text on black | 3.43:1 | AA large text | Lc -21.4 | 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 700.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AEC4D2
oklch(80.8% 0.031 235.7)
-
Step 400
400
#83A6BB
oklch(70.6% 0.049 234.7)
-
Step 500
500
#6390AA
oklch(63.1% 0.063 234.5)
-
Step 600
600
#497A96
oklch(55.6% 0.069 234.9)
-
Step 700
700 (this color)
#3A6780
oklch(49.2% 0.064 234.4)
-
Step 800
800
#305468
oklch(42.7% 0.053 234.2)
-
Step 900
900
#2B4554
oklch(37.6% 0.041 234.7)
-
Step 950
950
#1A2931
oklch(27.1% 0.025 232.2)
#3A6780 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) | #5B6681 | 0.041 |
| Deuteranopia (no green cones) | #515F80 | 0.034 |
| Tritanopia (no blue cones) | #0D6E6F | 0.050 |
| Achromatopsia (no color) | #626262 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A6780
#3A6780
oklch(49.2% 0.064 234.4)
- #7E573D
#7E573D
oklch(49.2% 0.065 54.3)
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 #3A6780, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.026
- Slate #516572 ΔE 0.032
- YInMn Blue #415A77 ΔE 0.038
- Peacock Blue #016795 ΔE 0.044
- Sea Blue #047495 ΔE 0.047
- Dusky Blue #475F94 ΔE 0.048
- Metallic Blue #4F738E ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.048
Use #3A6780 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.