#3F6090
Closest named color: Dusky Blue (#475F94). oklch(48.6% 0.087 257.7), rgb(63, 96, 144).
Aa
White text reads best on this color (6.38:1).
About this color
#3F6090 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.087 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.012 away. White text reads best on it, at 6.38:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.28:1 |
| White text | 6.38:1 |
Values
| HEX | #3F6090 |
| RGB | rgb(63, 96, 144) |
| HSL | hsl(216, 39%, 41%) |
| OKLCH | oklch(48.6% 0.087 257.7) |
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 #3F6090 | 6.38:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #3F6090 | 3.28:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #3F6090 text on white | 6.38:1 | AA | Lc 81.6 | Fine for body text |
| #3F6090 text on black | 3.28:1 | AA large text | Lc -20.3 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D0DAE9
oklch(88.5% 0.023 258.4)
-
Step 300
300
#B0C2DC
oklch(80.9% 0.042 257.5)
-
Step 400
400
#87A2CB
oklch(70.7% 0.068 258.6)
-
Step 500
500
#688BBD
oklch(63.1% 0.086 257.3)
-
Step 600
600
#5074AA
oklch(55.6% 0.094 258.3)
-
Step 700
700 (this color)
#3F6090
oklch(48.6% 0.087 257.7)
-
Step 800
800
#355076
oklch(42.8% 0.072 257)
-
Step 900
900
#2E425F
oklch(37.6% 0.056 257.6)
-
Step 950
950
#1B2738
oklch(27% 0.036 257.1)
#3F6090 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) | #4D6392 | 0.021 |
| Deuteranopia (no green cones) | #435B8F | 0.014 |
| Tritanopia (no blue cones) | #0C6B71 | 0.078 |
| Achromatopsia (no color) | #5F5F5F | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F6090
#3F6090
oklch(48.6% 0.087 257.7)
- #7A581D
#7A581D
oklch(48.5% 0.087 77.5)
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 #3F6090, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.012
- Denim #3B638C ΔE 0.013
- Denim Blue #3B5B92 ΔE 0.017
- Light Navy Blue #2E5A88 ΔE 0.029
- Peacock Blue #016795 ΔE 0.039
- Dusk #4E5481 ΔE 0.040
- YInMn Blue #415A77 ΔE 0.041
- Twilight #4E518B ΔE 0.044
Use #3F6090 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.