#3A82D1
Closest named color: Water Blue (#0E87CC). oklch(59.9% 0.141 253), rgb(58, 130, 209).
Aa
Black text reads best on this color (5.29:1).
About this color
#3A82D1 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.141 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.025 away. Black text reads best on it, at 5.29:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.29:1 |
| White text | 3.96:1 |
Values
| HEX | #3A82D1 |
| RGB | rgb(58, 130, 209) |
| HSL | hsl(211, 62%, 52%) |
| OKLCH | oklch(59.9% 0.141 253) |
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 #3A82D1 | 3.96:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #3A82D1 | 5.29:1 | AA | Lc 37.4 | Non-text elements, placeholder text |
| #3A82D1 text on white | 3.96:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #3A82D1 text on black | 5.29:1 | AA | Lc -35.0 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF2
oklch(88.4% 0.038 253.2)
-
Step 300
300
#A2C4ED
oklch(81% 0.069 253.4)
-
Step 400
400
#6EA4E4
oklch(70.7% 0.11 253.4)
-
Step 500
500 (this color)
#3A82D1
oklch(59.9% 0.141 253)
-
Step 600
600
#2074C9
oklch(55.5% 0.153 252.9)
-
Step 700
700
#1161AE
oklch(49.1% 0.142 253)
-
Step 800
800
#13508D
oklch(42.8% 0.117 252.7)
-
Step 900
900
#184371
oklch(37.8% 0.092 252.8)
-
Step 950
950
#102742
oklch(27% 0.058 253.9)
#3A82D1 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) | #5E87D4 | 0.039 |
| Deuteranopia (no green cones) | #4779CF | 0.025 |
| Tritanopia (no blue cones) | #00959F | 0.109 |
| Achromatopsia (no color) | #808080 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A82D1
#3A82D1
oklch(59.9% 0.141 253)
- #AD7200
#AD7200
oklch(59.9% 0.127 73.3)
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 #3A82D1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.025
- Windows Blue #3778BF ΔE 0.036
- Cool Blue #4984B8 ΔE 0.042
- Dark Sky Blue #448EE4 ΔE 0.042
- Steel Blue #4682B4 ΔE 0.045
- Off Blue #5684AE ΔE 0.060
- Soft Blue #6488EA ΔE 0.060
- Nice Blue #107AB0 ΔE 0.061
Use #3A82D1 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.