#405373
Closest named color: YInMn Blue (#415A77). oklch(44% 0.058 260.6), rgb(64, 83, 115).
Aa
White text reads best on this color (7.76:1).
About this color
#405373 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.058 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.021 away. White text reads best on it, at 7.76:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.70:1 |
| White text | 7.76:1 |
Values
| HEX | #405373 |
| RGB | rgb(64, 83, 115) |
| HSL | hsl(218, 28%, 35%) |
| OKLCH | oklch(44% 0.058 260.6) |
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 #405373 | 7.76:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #405373 | 2.70:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #405373 text on white | 7.76:1 | AAA | Lc 86.9 | Fine for body text |
| #405373 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D2DAE6
oklch(88.6% 0.019 258.4)
-
Step 300
300
#B4C1D7
oklch(80.8% 0.034 261)
-
Step 400
400
#8DA2C3
oklch(70.8% 0.054 259.4)
-
Step 500
500
#718AB4
oklch(63% 0.07 260.6)
-
Step 600
600
#5A74A0
oklch(55.7% 0.075 260.7)
-
Step 700
700
#496189
oklch(49.1% 0.071 260.3)
-
Step 800
800 (this color)
#405373
oklch(44% 0.058 260.6)
-
Step 900
900
#34425A
oklch(37.7% 0.045 261)
-
Step 950
950
#1E2735
oklch(27.1% 0.029 259.1)
#405373 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) | #475574 | 0.012 |
| Deuteranopia (no green cones) | #425072 | 0.009 |
| Tritanopia (no blue cones) | #2E5A5E | 0.052 |
| Achromatopsia (no color) | #525252 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405373
#405373
oklch(44% 0.058 260.6)
- #634F2C
#634F2C
oklch(44% 0.057 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 #405373, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.021
- Dusk #4E5481 ΔE 0.032
- Dusty Grape #545775 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.038
- Twilight #4E518B ΔE 0.047
- Dusk Blue #26538D ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.051
- Deep Sea Blue #015482 ΔE 0.052
Use #405373 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.