#405571
Closest named color: YInMn Blue (#415A77). oklch(44.4% 0.053 255.8), rgb(64, 85, 113).
Aa
White text reads best on this color (7.62:1).
About this color
#405571 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.053 and its hue 256°. 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 7.62:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.75:1 |
| White text | 7.62:1 |
Values
| HEX | #405571 |
| RGB | rgb(64, 85, 113) |
| HSL | hsl(214, 28%, 35%) |
| OKLCH | oklch(44.4% 0.053 255.8) |
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 #405571 | 7.62:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #405571 | 2.75:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #405571 text on white | 7.62:1 | AAA | Lc 86.4 | Fine for body text |
| #405571 text on black | 2.75:1 | Fails | Lc -15.6 | 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
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D2DAE5
oklch(88.6% 0.017 256.3)
-
Step 300
300
#B4C2D5
oklch(80.9% 0.031 256)
-
Step 400
400
#8DA2C0
oklch(70.6% 0.05 257.3)
-
Step 500
500
#708BB0
oklch(63% 0.064 256.4)
-
Step 600
600
#58759C
oklch(55.6% 0.07 256)
-
Step 700
700
#486285
oklch(49% 0.065 256)
-
Step 800
800 (this color)
#405571
oklch(44.4% 0.053 255.8)
-
Step 900
900
#334358
oklch(37.8% 0.042 255.4)
-
Step 950
950
#1E2733
oklch(27% 0.026 255.7)
#405571 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) | #4B5672 | 0.016 |
| Deuteranopia (no green cones) | #455170 | 0.013 |
| Tritanopia (no blue cones) | #2F5B5F | 0.046 |
| Achromatopsia (no color) | #545454 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405571
#405571
oklch(44.4% 0.053 255.8)
- #655031
#655031
oklch(44.5% 0.054 76.4)
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 #405571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.016
- Dusty Grape #545775 ΔE 0.031
- Dusk #4E5481 ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.040
- Twilight #4E518B ΔE 0.052
- Denim #3B638C ΔE 0.053
- Denim Blue #3B5B92 ΔE 0.053
- Deep Sea Blue #015482 ΔE 0.054
Use #405571 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.