#39578F
Closest named color: Denim Blue (#3B5B92). oklch(46.1% 0.098 261.9), rgb(57, 87, 143).
Aa
White text reads best on this color (7.15:1).
About this color
#39578F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.098 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.012 away. White text reads best on it, at 7.15:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 2.93:1 |
| White text | 7.15:1 |
Values
| HEX | #39578F |
| RGB | rgb(57, 87, 143) |
| HSL | hsl(219, 43%, 39%) |
| OKLCH | oklch(46.1% 0.098 261.9) |
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 #39578F | 7.15:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #39578F | 2.93:1 | Fails | Lc 19.4 | Dividers and decoration only |
| #39578F text on white | 7.15:1 | AAA | Lc 84.7 | Fine for body text |
| #39578F 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
#D0DAEB
oklch(88.6% 0.026 261.1)
-
Step 300
300
#B0C1E0
oklch(80.8% 0.048 262.5)
-
Step 400
400
#87A1D1
oklch(70.7% 0.077 262.4)
-
Step 500
500
#6989C5
oklch(63.1% 0.098 262.4)
-
Step 600
600
#5072B1
oklch(55.5% 0.106 262)
-
Step 700
700 (this color)
#39578F
oklch(46.1% 0.098 261.9)
-
Step 800
800
#364E7C
oklch(42.7% 0.082 262.5)
-
Step 900
900
#2F4163
oklch(37.6% 0.063 262.4)
-
Step 950
950
#1B263A
oklch(26.9% 0.041 261.9)
#39578F 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) | #34548E | 0.011 |
| Tritanopia (no blue cones) | #00636C | 0.085 |
| Achromatopsia (no color) | #585858 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39578F
#39578F
oklch(46.1% 0.098 261.9)
- #735200
#735200
oklch(46.2% 0.095 81.6)
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 #39578F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.012
- Light Navy Blue #2E5A88 ΔE 0.020
- Dusk Blue #26538D ΔE 0.024
- Twilight #4E518B ΔE 0.030
- Dusky Blue #475F94 ΔE 0.031
- Dusk #4E5481 ΔE 0.034
- Denim #3B638C ΔE 0.038
- YInMn Blue #415A77 ΔE 0.044
Use #39578F 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.