#3E8CEF
Closest named color: Dark Sky Blue (#448EE4). oklch(64.1% 0.167 255.9), rgb(62, 140, 239).
Aa
Black text reads best on this color (6.20:1).
About this color
#3E8CEF is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.167 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.019 away. Black text reads best on it, at 6.20:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.20:1 |
| White text | 3.38:1 |
Values
| HEX | #3E8CEF |
| RGB | rgb(62, 140, 239) |
| HSL | hsl(214, 85%, 59%) |
| OKLCH | oklch(64.1% 0.167 255.9) |
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 #3E8CEF | 3.38:1 | AA large text | Lc -66.4 | Content text, not long reading |
| Black text on #3E8CEF | 6.20:1 | AA | Lc 43.1 | Non-text elements, placeholder text |
| #3E8CEF text on white | 3.38:1 | AA large text | Lc 60.9 | Content text, not long reading |
| #3E8CEF text on black | 6.20:1 | AA | Lc -40.8 | 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
#C6DBF7
oklch(88.5% 0.045 255.6)
-
Step 300
300
#9EC3F5
oklch(80.8% 0.082 256.1)
-
Step 400
400
#67A3F1
oklch(70.8% 0.131 255.5)
-
Step 500
500 (this color)
#3E8CEF
oklch(64.1% 0.167 255.9)
-
Step 600
600
#0F70DA
oklch(55.6% 0.182 255.9)
-
Step 700
700
#005DBC
oklch(49% 0.167 256)
-
Step 800
800
#074D99
oklch(42.8% 0.139 255.8)
-
Step 900
900
#12417A
oklch(37.8% 0.109 255.8)
-
Step 950
950
#0D2647
oklch(26.9% 0.069 256.4)
#3E8CEF 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) | #5C94F3 | 0.036 |
| Deuteranopia (no green cones) | #3D84ED | 0.021 |
| Tritanopia (no blue cones) | #00A3B2 | 0.128 |
| Achromatopsia (no color) | #8B8B8B | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E8CEF
#3E8CEF
oklch(64.1% 0.167 255.9)
- #BA7F00
#BA7F00
oklch(64% 0.134 76.2)
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 #3E8CEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.019
- Chefchaouen Blue #4895EF ΔE 0.027
- Dodger Blue #1E90FF ΔE 0.027
- Soft Blue #6488EA ΔE 0.035
- Cornflower Blue #6495ED ΔE 0.045
- Clear Blue #247AFD ΔE 0.058
- Water Blue #0E87CC ΔE 0.061
- Cornflower #6A79F7 ΔE 0.062
Use #3E8CEF 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.