#405C8C
Closest named color: Denim Blue (#3B5B92). oklch(47.5% 0.085 260.7), rgb(64, 92, 140).
Aa
White text reads best on this color (6.71:1).
About this color
#405C8C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.085 and its hue 261°. 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 6.71:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.12:1 |
| White text | 6.71:1 |
Values
| HEX | #405C8C |
| RGB | rgb(64, 92, 140) |
| HSL | hsl(218, 37%, 40%) |
| OKLCH | oklch(47.5% 0.085 260.7) |
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 #405C8C | 6.71:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #405C8C | 3.12:1 | AA large text | Lc 21.0 | Dividers and decoration only |
| #405C8C text on white | 6.71:1 | AA | Lc 83.0 | Fine for body text |
| #405C8C text on black | 3.12:1 | AA large text | Lc -18.9 | 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
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D1DAE9
oklch(88.6% 0.023 260.7)
-
Step 300
300
#B2C2DC
oklch(81% 0.041 260.1)
-
Step 400
400
#89A2CA
oklch(70.8% 0.065 259.7)
-
Step 500
500
#6C8ABD
oklch(63.1% 0.085 260.8)
-
Step 600
600
#5473A9
oklch(55.5% 0.092 261)
-
Step 700
700 (this color)
#405C8C
oklch(47.5% 0.085 260.7)
-
Step 800
800
#384F76
oklch(42.7% 0.071 260.6)
-
Step 900
900
#31425F
oklch(37.8% 0.055 260.8)
-
Step 950
950
#1D2738
oklch(27.2% 0.035 260.8)
#405C8C 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) | #49608E | 0.017 |
| Deuteranopia (no green cones) | #40598B | 0.009 |
| Tritanopia (no blue cones) | #18676D | 0.077 |
| Achromatopsia (no color) | #5C5C5C | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405C8C
#405C8C
oklch(47.5% 0.085 260.7)
- #75561A
#75561A
oklch(47.4% 0.085 80.1)
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 #405C8C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.012
- Dusky Blue #475F94 ΔE 0.018
- Denim #3B638C ΔE 0.021
- Light Navy Blue #2E5A88 ΔE 0.022
- Dusk #4E5481 ΔE 0.029
- YInMn Blue #415A77 ΔE 0.034
- Twilight #4E518B ΔE 0.034
- Dusk Blue #26538D ΔE 0.041
Use #405C8C 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.