#405F8F
Closest named color: Dusky Blue (#475F94). oklch(48.4% 0.086 258.9), rgb(64, 95, 143).
Aa
White text reads best on this color (6.45:1).
About this color
#405F8F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.086 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.012 away. White text reads best on it, at 6.45:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.25:1 |
| White text | 6.45:1 |
Values
| HEX | #405F8F |
| RGB | rgb(64, 95, 143) |
| HSL | hsl(216, 38%, 41%) |
| OKLCH | oklch(48.4% 0.086 258.9) |
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 #405F8F | 6.45:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #405F8F | 3.25:1 | AA large text | Lc 22.1 | Dividers and decoration only |
| #405F8F text on white | 6.45:1 | AA | Lc 81.9 | Fine for body text |
| #405F8F text on black | 3.25:1 | AA large text | Lc -20.0 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D0DAE9
oklch(88.5% 0.023 258.4)
-
Step 300
300
#B1C2DC
oklch(81% 0.041 258.8)
-
Step 400
400
#88A2CB
oklch(70.7% 0.067 259.4)
-
Step 500
500
#6A8BBD
oklch(63.2% 0.085 258.5)
-
Step 600
600
#5174A9
oklch(55.6% 0.092 258.5)
-
Step 700
700 (this color)
#405F8F
oklch(48.4% 0.086 258.9)
-
Step 800
800
#374F76
oklch(42.6% 0.072 259.8)
-
Step 900
900
#2F425F
oklch(37.7% 0.056 258.6)
-
Step 950
950
#1C2738
oklch(27.1% 0.035 258.9)
#405F8F 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) | #4C6291 | 0.018 |
| Deuteranopia (no green cones) | #425B8E | 0.011 |
| Tritanopia (no blue cones) | #136A70 | 0.078 |
| Achromatopsia (no color) | #5E5E5E | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405F8F
#405F8F
oklch(48.4% 0.086 258.9)
- #79581D
#79581D
oklch(48.4% 0.086 78.3)
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 #405F8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.012
- Denim #3B638C ΔE 0.015
- Denim Blue #3B5B92 ΔE 0.015
- Light Navy Blue #2E5A88 ΔE 0.028
- Dusk #4E5481 ΔE 0.037
- YInMn Blue #415A77 ΔE 0.039
- Twilight #4E518B ΔE 0.041
- Peacock Blue #016795 ΔE 0.041
Use #405F8F 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.