#3F5985
Closest named color: Light Navy Blue (#2E5A88). oklch(46.4% 0.079 260.5), rgb(63, 89, 133).
Aa
White text reads best on this color (7.04:1).
About this color
#3F5985 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.079 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.018 away. White text reads best on it, at 7.04:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.97:1 |
| White text | 7.04:1 |
Values
| HEX | #3F5985 |
| RGB | rgb(63, 89, 133) |
| HSL | hsl(218, 36%, 38%) |
| OKLCH | oklch(46.4% 0.079 260.5) |
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 #3F5985 | 7.04:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #3F5985 | 2.97:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #3F5985 text on white | 7.04:1 | AAA | Lc 84.3 | Fine for body text |
| #3F5985 text on black | 2.97:1 | Fails | Lc -17.6 | 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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D1DAE8
oklch(88.6% 0.022 259.2)
-
Step 300
300
#B3C1DA
oklch(80.8% 0.039 262.1)
-
Step 400
400
#8BA2C7
oklch(70.8% 0.06 259.8)
-
Step 500
500
#6E8AB9
oklch(63% 0.078 260.6)
-
Step 600
600
#5674A5
oklch(55.7% 0.084 259.9)
-
Step 700
700 (this color)
#3F5985
oklch(46.4% 0.079 260.5)
-
Step 800
800
#3A4F73
oklch(42.7% 0.066 260.8)
-
Step 900
900
#32425D
oklch(37.8% 0.051 260.6)
-
Step 950
950
#1D2736
oklch(27% 0.031 258.3)
#3F5985 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) | #485C87 | 0.016 |
| Deuteranopia (no green cones) | #405684 | 0.009 |
| Tritanopia (no blue cones) | #1E6369 | 0.071 |
| Achromatopsia (no color) | #595959 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F5985
#3F5985
oklch(46.4% 0.079 260.5)
- #70541F
#70541F
oklch(46.4% 0.079 80.4)
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 #3F5985, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.018
- Denim Blue #3B5B92 ΔE 0.021
- Dusk #4E5481 ΔE 0.023
- YInMn Blue #415A77 ΔE 0.024
- Denim #3B638C ΔE 0.029
- Dusky Blue #475F94 ΔE 0.030
- Twilight #4E518B ΔE 0.033
- Dusty Grape #545775 ΔE 0.037
Use #3F5985 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.