#404D6E
Closest named color: YInMn Blue (#415A77). oklch(42.4% 0.058 267.4), rgb(64, 77, 110).
Aa
White text reads best on this color (8.38:1).
About this color
#404D6E is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.058 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.039 away. White text reads best on it, at 8.38:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #404D6E |
| RGB | rgb(64, 77, 110) |
| HSL | hsl(223, 26%, 34%) |
| OKLCH | oklch(42.4% 0.058 267.4) |
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 #404D6E | 8.38:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #404D6E | 2.50:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #404D6E text on white | 8.38:1 | AAA | Lc 88.9 | Fine for body text |
| #404D6E text on black | 2.50:1 | Fails | Lc -13.3 | Not readable |
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
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D4D9E6
oklch(88.5% 0.019 269.1)
-
Step 300
300
#B7C0D7
oklch(80.8% 0.034 268.6)
-
Step 400
400
#92A0C3
oklch(70.7% 0.054 267.9)
-
Step 500
500
#7788B4
oklch(63% 0.07 268)
-
Step 600
600
#6072A0
oklch(55.6% 0.075 267.5)
-
Step 700
700
#4F5F89
oklch(49% 0.071 267.8)
-
Step 800
800 (this color)
#404D6E
oklch(42.4% 0.058 267.4)
-
Step 900
900
#37415A
oklch(37.7% 0.045 267.4)
-
Step 950
950
#202635
oklch(27% 0.029 267.5)
#404D6E 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) | #42506F | 0.010 |
| Deuteranopia (no green cones) | #3D4C6D | 0.006 |
| Tritanopia (no blue cones) | #315459 | 0.052 |
| Achromatopsia (no color) | #4E4E4E | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404D6E
#404D6E
oklch(42.4% 0.058 267.4)
- #5B4C27
#5B4C27
oklch(42.3% 0.057 87.8)
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 #404D6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.039
- Dusk #4E5481 ΔE 0.042
- Dusty Grape #545775 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.052
- Light Navy #155084 ΔE 0.053
- Twilight #4E518B ΔE 0.053
- Dusk Blue #26538D ΔE 0.056
Use #404D6E 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.