#3982C2
Closest named color: Cool Blue (#4984B8). oklch(59% 0.122 248), rgb(57, 130, 194).
Aa
Black text reads best on this color (5.14:1).
About this color
#3982C2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.122 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.022 away. Black text reads best on it, at 5.14:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.14:1 |
| White text | 4.08:1 |
Values
| HEX | #3982C2 |
| RGB | rgb(57, 130, 194) |
| HSL | hsl(208, 55%, 49%) |
| OKLCH | oklch(59% 0.122 248) |
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 #3982C2 | 4.08:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #3982C2 | 5.14:1 | AA | Lc 36.4 | Non-text elements, placeholder text |
| #3982C2 text on white | 4.08:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #3982C2 text on black | 5.14:1 | AA | Lc -34.0 | 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 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
#CADBED
oklch(88.4% 0.031 249.7)
-
Step 300
300
#A5C4E3
oklch(80.8% 0.055 248.5)
-
Step 400
400
#74A6D5
oklch(70.8% 0.087 247.6)
-
Step 500
500
#4D8ECA
oklch(63% 0.113 248.3)
-
Step 600
600 (this color)
#3982C2
oklch(59% 0.122 248)
-
Step 700
700
#1F649D
oklch(49% 0.113 247.9)
-
Step 800
800
#1D5280
oklch(42.7% 0.094 248.4)
-
Step 900
900
#1E4466
oklch(37.6% 0.073 248)
-
Step 950
950
#13283C
oklch(27% 0.046 248.8)
#3982C2 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 | 0.046 |
| Deuteranopia (no green cones) | #5278C1 | 0.033 |
| Tritanopia (no blue cones) | #009199 | 0.090 |
| Achromatopsia (no color) | #7E7E7E | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3982C2
#3982C2
oklch(59% 0.122 248)
- #AC6D17
#AC6D17
oklch(58.9% 0.122 67.8)
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 #3982C2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.022
- Steel Blue #4682B4 ΔE 0.023
- Water Blue #0E87CC ΔE 0.024
- Windows Blue #3778BF ΔE 0.028
- Off Blue #5684AE ΔE 0.041
- Blue NCS #118AB2 ΔE 0.042
- Nice Blue #107AB0 ΔE 0.043
- Dusty Blue #5A86AD ΔE 0.047
Use #3982C2 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.