#3F5690
Closest named color: Denim Blue (#3B5B92). oklch(46.3% 0.099 266.3), rgb(63, 86, 144).
Aa
White text reads best on this color (7.13:1).
About this color
#3F5690 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.099 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.014 away. White text reads best on it, at 7.13:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 2.94:1 |
| White text | 7.13:1 |
Values
| HEX | #3F5690 |
| RGB | rgb(63, 86, 144) |
| HSL | hsl(223, 39%, 41%) |
| OKLCH | oklch(46.3% 0.099 266.3) |
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 #3F5690 | 7.13:1 | AAA | Lc -89.5 | Fine for body text |
| Black text on #3F5690 | 2.94:1 | Fails | Lc 19.4 | Dividers and decoration only |
| #3F5690 text on white | 7.13:1 | AAA | Lc 84.6 | Fine for body text |
| #3F5690 text on black | 2.94:1 | Fails | Lc -17.4 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D1D9EB
oklch(88.5% 0.026 266.6)
-
Step 300
300
#B2C1E0
oklch(81% 0.047 264.9)
-
Step 400
400
#8AA0D1
oklch(70.7% 0.076 265.7)
-
Step 500
500
#6E88C5
oklch(63.2% 0.097 266)
-
Step 600
600
#5671B2
oklch(55.7% 0.106 266)
-
Step 700
700 (this color)
#3F5690
oklch(46.3% 0.099 266.3)
-
Step 800
800
#3A4D7C
oklch(42.7% 0.082 266.3)
-
Step 900
900
#324064
oklch(37.7% 0.065 267.1)
-
Step 950
950
#1D263A
oklch(27% 0.04 265.3)
#3F5690 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) | #3E5C92 | 0.017 |
| Deuteranopia (no green cones) | #34548F | 0.015 |
| Tritanopia (no blue cones) | #11636C | 0.089 |
| Achromatopsia (no color) | #585858 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F5690
#3F5690
oklch(46.3% 0.099 266.3)
- #705400
#705400
oklch(46.2% 0.095 86.2)
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 #3F5690, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.014
- Twilight #4E518B ΔE 0.023
- Light Navy Blue #2E5A88 ΔE 0.026
- Dusky Blue #475F94 ΔE 0.029
- Dusk Blue #26538D ΔE 0.030
- Dusk #4E5481 ΔE 0.030
- Denim #3B638C ΔE 0.040
- YInMn Blue #415A77 ΔE 0.046
Use #3F5690 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.