#3982E5
Closest named color: Dark Sky Blue (#448EE4). oklch(61.1% 0.167 257), rgb(57, 130, 229).
Aa
Black text reads best on this color (5.49:1).
About this color
#3982E5 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.167 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.035 away. Black text reads best on it, at 5.49:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.49:1 |
| White text | 3.81:1 |
Values
| HEX | #3982E5 |
| RGB | rgb(57, 130, 229) |
| HSL | hsl(215, 77%, 56%) |
| OKLCH | oklch(61.1% 0.167 257) |
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 #3982E5 | 3.81:1 | AA large text | Lc -70.8 | Content text, not long reading |
| Black text on #3982E5 | 5.49:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #3982E5 text on white | 3.81:1 | AA large text | Lc 65.3 | Content text, not long reading |
| #3982E5 text on black | 5.49:1 | AA | Lc -36.4 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C7DBF8
oklch(88.6% 0.046 257.6)
-
Step 300
300
#9FC3F5
oklch(80.9% 0.081 256.7)
-
Step 400
400
#6AA2F1
oklch(70.7% 0.131 257.1)
-
Step 500
500 (this color)
#3982E5
oklch(61.1% 0.167 257)
-
Step 600
600
#1A6FDA
oklch(55.5% 0.181 257.1)
-
Step 700
700
#0A5CBD
oklch(49% 0.169 257.2)
-
Step 800
800
#0E4C99
oklch(42.7% 0.14 257)
-
Step 900
900
#15407A
oklch(37.6% 0.109 257.2)
-
Step 950
950
#0E2647
oklch(27% 0.068 257.1)
#3982E5 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) | #508BE9 | 0.033 |
| Deuteranopia (no green cones) | #2F7BE3 | 0.021 |
| Tritanopia (no blue cones) | #0099A8 | 0.128 |
| Achromatopsia (no color) | #828282 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3982E5
#3982E5
oklch(61.1% 0.167 257)
- #AE7800
#AE7800
oklch(61.2% 0.128 77.3)
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 #3982E5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.035
- Clear Blue #247AFD ΔE 0.046
- Soft Blue #6488EA ΔE 0.047
- Water Blue #0E87CC ΔE 0.048
- Dodger Blue #1E90FF ΔE 0.049
- Chefchaouen Blue #4895EF ΔE 0.054
- Cornflower #6A79F7 ΔE 0.060
- Windows Blue #3778BF ΔE 0.061
Use #3982E5 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.