#3F568F
Closest named color: Denim Blue (#3B5B92). oklch(46.2% 0.097 266.1), rgb(63, 86, 143).
Aa
White text reads best on this color (7.14:1).
About this color
#3F568F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.097 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 7.14:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 2.93:1 |
| White text | 7.14:1 |
Values
| HEX | #3F568F |
| RGB | rgb(63, 86, 143) |
| HSL | hsl(223, 39%, 40%) |
| OKLCH | oklch(46.2% 0.097 266.1) |
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 #3F568F | 7.14:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #3F568F | 2.93:1 | Fails | Lc 19.4 | Dividers and decoration only |
| #3F568F text on white | 7.14:1 | AAA | Lc 84.7 | Fine for body text |
| #3F568F text on black | 2.93:1 | Fails | Lc -17.3 | 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
#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
#8BA0D0
oklch(70.7% 0.075 266.2)
-
Step 500
500
#6E88C4
oklch(63.1% 0.096 265.8)
-
Step 600
600
#5671B1
oklch(55.6% 0.105 265.8)
-
Step 700
700 (this color)
#3F568F
oklch(46.2% 0.097 266.1)
-
Step 800
800
#3A4D7B
oklch(42.7% 0.08 266.1)
-
Step 900
900
#324063
oklch(37.6% 0.063 266.8)
-
Step 950
950
#1D263A
oklch(27% 0.04 265.3)
#3F568F 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) | #3F5C91 | 0.017 |
| Deuteranopia (no green cones) | #35548E | 0.014 |
| Tritanopia (no blue cones) | #12626B | 0.087 |
| Achromatopsia (no color) | #585858 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F568F
#3F568F
oklch(46.2% 0.097 266.1)
- #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 #3F568F, 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 0.025
- Dusk #4E5481 ΔE 0.029
- Dusky Blue #475F94 ΔE 0.029
- Dusk Blue #26538D ΔE 0.030
- Denim #3B638C ΔE 0.040
- YInMn Blue #415A77 ΔE 0.044
Use #3F568F 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.