#3682C2
Closest named color: Water Blue (#0E87CC). oklch(58.9% 0.123 247.3), rgb(54, 130, 194).
Aa
Black text reads best on this color (5.12:1).
About this color
#3682C2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.123 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.022 away. Black text reads best on it, at 5.12:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.12:1 |
| White text | 4.09:1 |
Values
| HEX | #3682C2 |
| RGB | rgb(54, 130, 194) |
| HSL | hsl(207, 56%, 49%) |
| OKLCH | oklch(58.9% 0.123 247.3) |
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 #3682C2 | 4.09:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #3682C2 | 5.12:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #3682C2 text on white | 4.09:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #3682C2 text on black | 5.12:1 | AA | Lc -33.9 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADCED
oklch(88.6% 0.03 246.6)
-
Step 300
300
#A5C5E3
oklch(81% 0.055 246.8)
-
Step 400
400
#73A6D5
oklch(70.7% 0.088 247.2)
-
Step 500
500
#4B8FCA
oklch(63.1% 0.113 246.9)
-
Step 600
600 (this color)
#3682C2
oklch(58.9% 0.123 247.3)
-
Step 700
700
#1C659E
oklch(49.2% 0.115 247.1)
-
Step 800
800
#1A5280
oklch(42.6% 0.096 247.5)
-
Step 900
900
#1D4467
oklch(37.6% 0.075 248.2)
-
Step 950
950
#12283C
oklch(26.9% 0.047 247.8)
#3682C2 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) | #6585C5 | 0.048 |
| Deuteranopia (no green cones) | #5177C1 | 0.035 |
| Tritanopia (no blue cones) | #009199 | 0.090 |
| Achromatopsia (no color) | #7D7D7D | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3682C2
#3682C2
oklch(58.9% 0.123 247.3)
- #AD6C15
#AD6C15
oklch(58.9% 0.124 66.8)
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 #3682C2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.022
- Cool Blue #4984B8 ΔE 0.023
- Steel Blue #4682B4 ΔE 0.024
- Windows Blue #3778BF ΔE 0.028
- Blue NCS #118AB2 ΔE 0.041
- Nice Blue #107AB0 ΔE 0.042
- Off Blue #5684AE ΔE 0.042
- Dusty Blue #5A86AD ΔE 0.049
Use #3682C2 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.