#3E84BD
Closest named color: Cool Blue (#4984B8). oklch(59.4% 0.112 245.9), rgb(62, 132, 189).
Aa
Black text reads best on this color (5.24:1).
About this color
#3E84BD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.112 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.012 away. Black text reads best on it, at 5.24:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.24:1 |
| White text | 4.00:1 |
Values
| HEX | #3E84BD |
| RGB | rgb(62, 132, 189) |
| HSL | hsl(207, 51%, 49%) |
| OKLCH | oklch(59.4% 0.112 245.9) |
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 #3E84BD | 4.00:1 | AA large text | Lc -72.6 | Content text, not long reading |
| Black text on #3E84BD | 5.24:1 | AA | Lc 37.0 | Non-text elements, placeholder text |
| #3E84BD text on white | 4.00:1 | AA large text | Lc 67.1 | Content text, not long reading |
| #3E84BD text on black | 5.24:1 | AA | Lc -34.5 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#C9DCED
oklch(88.6% 0.031 245.1)
-
Step 300
300
#A4C5E3
oklch(80.9% 0.055 246)
-
Step 400
400
#72A6D4
oklch(70.6% 0.087 246.1)
-
Step 500
500 (this color)
#3E84BD
oklch(59.4% 0.112 245.9)
-
Step 600
600
#2878B6
oklch(55.5% 0.123 246.3)
-
Step 700
700
#19659D
oklch(49.1% 0.114 246.1)
-
Step 800
800
#18537F
oklch(42.8% 0.094 245.5)
-
Step 900
900
#1C4566
oklch(37.8% 0.073 245.8)
-
Step 950
950
#11283C
oklch(26.9% 0.047 246.9)
#3E84BD 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) | #6B86C0 | 0.048 |
| Deuteranopia (no green cones) | #5979BC | 0.037 |
| Tritanopia (no blue cones) | #009298 | 0.084 |
| Achromatopsia (no color) | #7F7F7F | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E84BD
#3E84BD
oklch(59.4% 0.112 245.9)
- #AB6F2A
#AB6F2A
oklch(59.3% 0.112 65.8)
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 #3E84BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.012
- Steel Blue #4682B4 ΔE 0.014
- Water Blue #0E87CC ΔE 0.029
- Off Blue #5684AE ΔE 0.031
- Blue NCS #118AB2 ΔE 0.035
- Windows Blue #3778BF ΔE 0.036
- Dusty Blue #5A86AD ΔE 0.037
- Nice Blue #107AB0 ΔE 0.045
Use #3E84BD 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.