#3D84D7
Closest named color: Water Blue (#0E87CC). oklch(60.8% 0.145 254.2), rgb(61, 132, 215).
Aa
Black text reads best on this color (5.48:1).
About this color
#3D84D7 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.145 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.030 away. Black text reads best on it, at 5.48:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.48:1 |
| White text | 3.83:1 |
Values
| HEX | #3D84D7 |
| RGB | rgb(61, 132, 215) |
| HSL | hsl(212, 66%, 54%) |
| OKLCH | oklch(60.8% 0.145 254.2) |
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 #3D84D7 | 3.83:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #3D84D7 | 5.48:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #3D84D7 text on white | 3.83:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #3D84D7 text on black | 5.48:1 | AA | Lc -36.2 | 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
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C8DBF3
oklch(88.5% 0.039 254.3)
-
Step 300
300
#A1C4EE
oklch(80.9% 0.071 253.2)
-
Step 400
400
#6DA4E6
oklch(70.8% 0.113 253.7)
-
Step 500
500 (this color)
#3D84D7
oklch(60.8% 0.145 254.2)
-
Step 600
600
#2173CC
oklch(55.5% 0.157 254.2)
-
Step 700
700
#1260B1
oklch(49.1% 0.147 254.2)
-
Step 800
800
#134F8F
oklch(42.7% 0.121 253.9)
-
Step 900
900
#184272
oklch(37.7% 0.095 254)
-
Step 950
950
#102743
oklch(27% 0.06 254.6)
#3D84D7 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) | #5E8ADA | 0.037 |
| Deuteranopia (no green cones) | #467CD5 | 0.021 |
| Tritanopia (no blue cones) | #0097A3 | 0.111 |
| Achromatopsia (no color) | #828282 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D84D7
#3D84D7
oklch(60.8% 0.145 254.2)
- #B07500
#B07500
oklch(60.9% 0.129 74)
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 #3D84D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.030
- Dark Sky Blue #448EE4 ΔE 0.032
- Windows Blue #3778BF ΔE 0.046
- Cool Blue #4984B8 ΔE 0.048
- Soft Blue #6488EA ΔE 0.051
- Steel Blue #4682B4 ΔE 0.053
- Chefchaouen Blue #4895EF ΔE 0.056
- Dodger Blue #1E90FF ΔE 0.063
Use #3D84D7 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.