#3E8DCF
Closest named color: Water Blue (#0E87CC). oklch(62.4% 0.126 246.9), rgb(62, 141, 207).
Aa
Black text reads best on this color (5.91:1).
About this color
#3E8DCF is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.126 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.031 away. Black text reads best on it, at 5.91:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.91:1 |
| White text | 3.54:1 |
Values
| HEX | #3E8DCF |
| RGB | rgb(62, 141, 207) |
| HSL | hsl(207, 60%, 53%) |
| OKLCH | oklch(62.4% 0.126 246.9) |
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 #3E8DCF | 3.54:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #3E8DCF | 5.91:1 | AA | Lc 41.3 | Non-text elements, placeholder text |
| #3E8DCF text on white | 3.54:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #3E8DCF text on black | 5.91:1 | AA | Lc -38.9 | 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
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEF
oklch(88.5% 0.034 246.8)
-
Step 300
300
#A1C5E7
oklch(80.9% 0.062 247.1)
-
Step 400
400
#6CA6DB
oklch(70.6% 0.099 247.2)
-
Step 500
500 (this color)
#3E8DCF
oklch(62.4% 0.126 246.9)
-
Step 600
600
#1778BE
oklch(55.6% 0.137 246.7)
-
Step 700
700
#0365A4
oklch(49.2% 0.127 246.5)
-
Step 800
800
#0C5285
oklch(42.6% 0.106 247.1)
-
Step 900
900
#15446B
oklch(37.6% 0.084 247.6)
-
Step 950
950
#0E283E
oklch(26.9% 0.052 246.9)
#3E8DCF 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) | #6F90D2 | 0.050 |
| Deuteranopia (no green cones) | #5B82CE | 0.037 |
| Tritanopia (no blue cones) | #009DA5 | 0.093 |
| Achromatopsia (no color) | #888888 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E8DCF
#3E8DCF
oklch(62.4% 0.126 246.9)
- #B97621
#B97621
oklch(62.3% 0.126 66.8)
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 #3E8DCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.031
- Dark Sky Blue #448EE4 ΔE 0.033
- Cool Blue #4984B8 ΔE 0.038
- Faded Blue #658CBB ΔE 0.045
- Steel Blue #4682B4 ΔE 0.045
- Chefchaouen Blue #4895EF ΔE 0.051
- Off Blue #5684AE ΔE 0.052
- Blue NCS #118AB2 ΔE 0.053
Use #3E8DCF 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.