#405283
Closest named color: Dusk (#4E5481). oklch(44.7% 0.084 267.7), rgb(64, 82, 131).
Aa
White text reads best on this color (7.62:1).
About this color
#405283 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.084 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.022 away. White text reads best on it, at 7.62:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.75:1 |
| White text | 7.62:1 |
Values
| HEX | #405283 |
| RGB | rgb(64, 82, 131) |
| HSL | hsl(224, 34%, 38%) |
| OKLCH | oklch(44.7% 0.084 267.7) |
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 #405283 | 7.62:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #405283 | 2.75:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #405283 text on white | 7.62:1 | AAA | Lc 86.4 | Fine for body text |
| #405283 text on black | 2.75:1 | Fails | Lc -15.7 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D1D9EC
oklch(88.5% 0.028 267.5)
-
Step 300
300
#B3C0E1
oklch(80.9% 0.049 268.3)
-
Step 400
400
#8B9FD2
oklch(70.6% 0.078 267.8)
-
Step 500
500
#6F87C7
oklch(63.1% 0.101 267.8)
-
Step 600
600
#5770B3
oklch(55.6% 0.109 267.3)
-
Step 700
700
#485D9A
oklch(49% 0.101 268.2)
-
Step 800
800 (this color)
#405283
oklch(44.7% 0.084 267.7)
-
Step 900
900
#324064
oklch(37.7% 0.065 267.1)
-
Step 950
950
#1E263B
oklch(27.2% 0.041 267.7)
#405283 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) | #3F5785 | 0.014 |
| Deuteranopia (no green cones) | #385182 | 0.011 |
| Tritanopia (no blue cones) | #245C64 | 0.074 |
| Achromatopsia (no color) | #545454 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405283
#405283
oklch(44.7% 0.084 267.7)
- #685110
#685110
oklch(44.7% 0.084 87.7)
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 #405283, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.022
- Twilight #4E518B ΔE 0.025
- Light Navy Blue #2E5A88 ΔE 0.028
- Dusk Blue #26538D ΔE 0.031
- Denim Blue #3B5B92 ΔE 0.032
- YInMn Blue #415A77 ΔE 0.035
- Dusty Grape #545775 ΔE 0.042
- Light Navy #155084 ΔE 0.043
Use #405283 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.