#3F5086
Closest named color: Twilight (#4E518B). oklch(44.3% 0.091 269.2), rgb(63, 80, 134).
Aa
White text reads best on this color (7.76:1).
About this color
#3F5086 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.091 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.024 away. White text reads best on it, at 7.76:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.70:1 |
| White text | 7.76:1 |
Values
| HEX | #3F5086 |
| RGB | rgb(63, 80, 134) |
| HSL | hsl(226, 36%, 39%) |
| OKLCH | oklch(44.3% 0.091 269.2) |
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 #3F5086 | 7.76:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #3F5086 | 2.70:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #3F5086 text on white | 7.76:1 | AAA | Lc 86.9 | Fine for body text |
| #3F5086 text on black | 2.70:1 | Fails | Lc -15.2 | 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 800.
-
Step 50
50
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D1D9ED
oklch(88.5% 0.029 268.3)
-
Step 300
300
#B2C0E4
oklch(80.9% 0.053 268.5)
-
Step 400
400
#8B9FD7
oklch(70.8% 0.085 269)
-
Step 500
500
#6F86CC
oklch(63.2% 0.109 269.3)
-
Step 600
600
#576EB9
oklch(55.5% 0.12 269.4)
-
Step 700
700
#475C9F
oklch(49.1% 0.11 269)
-
Step 800
800 (this color)
#3F5086
oklch(44.3% 0.091 269.2)
-
Step 900
900
#323F67
oklch(37.6% 0.071 269.2)
-
Step 950
950
#1D253D
oklch(26.9% 0.046 269.1)
#3F5086 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) | #3B5688 | 0.017 |
| Deuteranopia (no green cones) | #334F85 | 0.016 |
| Tritanopia (no blue cones) | #1F5C64 | 0.083 |
| Achromatopsia (no color) | #525252 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F5086
#3F5086
oklch(44.3% 0.091 269.2)
- #675000
#675000
oklch(44.3% 0.09 89.5)
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 #3F5086, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.024
- Dusk #4E5481 ΔE 0.027
- Dusk Blue #26538D ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.032
- Denim Blue #3B5B92 ΔE 0.034
- Light Navy #155084 ΔE 0.041
- YInMn Blue #415A77 ΔE 0.044
- Dusky Blue #475F94 ΔE 0.048
Use #3F5086 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.