#405E73
Closest named color: YInMn Blue (#415A77). oklch(46.7% 0.049 239.7), rgb(64, 94, 115).
Aa
White text reads best on this color (6.84:1).
About this color
#405E73 is a medium-dark, muted blue. In OKLCH its lightness is 47%, its chroma 0.049 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.016 away. White text reads best on it, at 6.84:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.06:1 |
| White text | 6.84:1 |
Values
| HEX | #405E73 |
| RGB | rgb(64, 94, 115) |
| HSL | hsl(205, 28%, 35%) |
| OKLCH | oklch(46.7% 0.049 239.7) |
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 #405E73 | 6.84:1 | AA | Lc -88.6 | Fine for body text |
| Black text on #405E73 | 3.06:1 | AA large text | Lc 20.4 | Dividers and decoration only |
| #405E73 text on white | 6.84:1 | AA | Lc 83.6 | Fine for body text |
| #405E73 text on black | 3.06:1 | AA large text | Lc -18.4 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE1
oklch(88.4% 0.013 244.3)
-
Step 300
300
#B3C3CF
oklch(80.9% 0.024 240.2)
-
Step 400
400
#8CA4B6
oklch(70.6% 0.038 240.5)
-
Step 500
500
#6F8EA4
oklch(63.1% 0.048 239.4)
-
Step 600
600
#57788F
oklch(55.6% 0.052 239.3)
-
Step 700
700 (this color)
#405E73
oklch(46.7% 0.049 239.7)
-
Step 800
800
#3A5263
oklch(42.6% 0.041 239.8)
-
Step 900
900
#324451
oklch(37.7% 0.032 240.1)
-
Step 950
950
#1E282F
oklch(27% 0.019 238.9)
#405E73 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) | #555E74 | 0.028 |
| Deuteranopia (no green cones) | #4E5873 | 0.025 |
| Tritanopia (no blue cones) | #2C6365 | 0.039 |
| Achromatopsia (no color) | #5A5A5A | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405E73
#405E73
oklch(46.7% 0.049 239.7)
- #6F543E
#6F543E
oklch(46.8% 0.049 60.4)
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 #405E73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.016
- Slate #516572 ΔE 0.033
- Dusty Grape #545775 ΔE 0.034
- Denim #3B638C ΔE 0.040
- Light Navy Blue #2E5A88 ΔE 0.044
- Dusk #4E5481 ΔE 0.046
- Petrol #005F6A ΔE 0.049
- Denim Blue #3B5B92 ΔE 0.054
Use #405E73 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.