#3E87D2
Closest named color: Water Blue (#0E87CC). oklch(61.2% 0.135 251.5), rgb(62, 135, 210).
Aa
Black text reads best on this color (5.60:1).
About this color
#3E87D2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.135 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.026 away. Black text reads best on it, at 5.60:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.60:1 |
| White text | 3.74:1 |
Values
| HEX | #3E87D2 |
| RGB | rgb(62, 135, 210) |
| HSL | hsl(210, 62%, 53%) |
| OKLCH | oklch(61.2% 0.135 251.5) |
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 #3E87D2 | 3.74:1 | AA large text | Lc -70.2 | Content text, not long reading |
| Black text on #3E87D2 | 5.60:1 | AA | Lc 39.3 | Non-text elements, placeholder text |
| #3E87D2 text on white | 3.74:1 | AA large text | Lc 64.7 | Content text, not long reading |
| #3E87D2 text on black | 5.60:1 | AA | Lc -36.9 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF1
oklch(88.4% 0.037 252.1)
-
Step 300
300
#A2C4EB
oklch(80.9% 0.066 252.1)
-
Step 400
400
#6EA5E1
oklch(70.8% 0.106 251.5)
-
Step 500
500 (this color)
#3E87D2
oklch(61.2% 0.135 251.5)
-
Step 600
600
#2075C6
oklch(55.6% 0.148 251.8)
-
Step 700
700
#1062AB
oklch(49.1% 0.137 251.6)
-
Step 800
800
#12508A
oklch(42.6% 0.113 251.5)
-
Step 900
900
#18436F
oklch(37.7% 0.089 251.8)
-
Step 950
950
#0F2841
oklch(27.1% 0.056 250.6)
#3E87D2 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) | #658BD5 | 0.041 |
| Deuteranopia (no green cones) | #507ED1 | 0.027 |
| Tritanopia (no blue cones) | #0099A2 | 0.105 |
| Achromatopsia (no color) | #848484 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E87D2
#3E87D2
oklch(61.2% 0.135 251.5)
- #B47400
#B47400
oklch(61.2% 0.132 71.3)
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 #3E87D2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.026
- Dark Sky Blue #448EE4 ΔE 0.032
- Cool Blue #4984B8 ΔE 0.039
- Steel Blue #4682B4 ΔE 0.045
- Windows Blue #3778BF ΔE 0.048
- Soft Blue #6488EA ΔE 0.054
- Chefchaouen Blue #4895EF ΔE 0.055
- Faded Blue #658CBB ΔE 0.055
Use #3E87D2 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.