#3E9CDC
Closest named color: Chefchaouen Blue (#4895EF). oklch(66.6% 0.129 242.3), rgb(62, 156, 220).
Aa
Black text reads best on this color (6.99:1).
About this color
#3E9CDC is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.129 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.038 away. Black text reads best on it, at 6.99:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 6.99:1 |
| White text | 3.00:1 |
Values
| HEX | #3E9CDC |
| RGB | rgb(62, 156, 220) |
| HSL | hsl(204, 69%, 55%) |
| OKLCH | oklch(66.6% 0.129 242.3) |
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 #3E9CDC | 3.00:1 | AA large text | Lc -61.7 | Content text, not long reading |
| Black text on #3E9CDC | 6.99:1 | AA | Lc 47.7 | Large or bold text, headings |
| #3E9CDC text on white | 3.00:1 | AA large text | Lc 56.4 | Large or bold text, headings |
| #3E9CDC text on black | 6.99:1 | AA | Lc -45.4 | Large or bold text, headings |
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
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C6DDEF
oklch(88.6% 0.035 241.5)
-
Step 300
300
#9DC6E7
oklch(80.8% 0.064 242.9)
-
Step 400
400
#64A8DA
oklch(70.6% 0.101 242)
-
Step 500
500 (this color)
#3E9CDC
oklch(66.6% 0.129 242.3)
-
Step 600
600
#007ABA
oklch(55.6% 0.133 242.5)
-
Step 700
700
#00679D
oklch(49.2% 0.117 242)
-
Step 800
800
#005481
oklch(42.7% 0.101 241.9)
-
Step 900
900
#0A466A
oklch(37.8% 0.084 241.9)
-
Step 950
950
#0A293E
oklch(27% 0.053 242.3)
#3E9CDC 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) | #7F9DDF | 0.063 |
| Deuteranopia (no green cones) | #698EDB | 0.049 |
| Tritanopia (no blue cones) | #00ACB2 | 0.091 |
| Achromatopsia (no color) | #959595 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E9CDC
#3E9CDC
oklch(66.6% 0.129 242.3)
- #CB8033
#CB8033
oklch(66.5% 0.129 62.6)
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 #3E9CDC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.038
- Dark Sky Blue #448EE4 ΔE 0.043
- Cornflower Blue #6495ED ΔE 0.047
- Faded Blue #658CBB ΔE 0.061
- Soft Blue #6488EA ΔE 0.067
- Water Blue #0E87CC ΔE 0.068
- Dodger Blue #1E90FF ΔE 0.069
- Cool Blue #4984B8 ΔE 0.076
Use #3E9CDC 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.