#405289
Closest named color: Twilight (#4E518B). oklch(45% 0.093 268.8), rgb(64, 82, 137).
Aa
White text reads best on this color (7.53:1).
About this color
#405289 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.093 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.020 away. White text reads best on it, at 7.53:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.78:1 |
| White text | 7.53:1 |
Values
| HEX | #405289 |
| RGB | rgb(64, 82, 137) |
| HSL | hsl(225, 36%, 39%) |
| OKLCH | oklch(45% 0.093 268.8) |
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 #405289 | 7.53:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #405289 | 2.78:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #405289 text on white | 7.53:1 | AAA | Lc 86.1 | Fine for body text |
| #405289 text on black | 2.78:1 | Fails | Lc -16.0 | 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
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D1D9EE
oklch(88.6% 0.03 269.1)
-
Step 300
300
#B2C0E5
oklch(80.9% 0.055 268.9)
-
Step 400
400
#8A9FD8
oklch(70.8% 0.087 268.5)
-
Step 500
500
#6E86CD
oklch(63.2% 0.111 268.9)
-
Step 600
600
#566EBA
oklch(55.5% 0.122 269)
-
Step 700
700
#465CA0
oklch(49.1% 0.112 268.5)
-
Step 800
800 (this color)
#405289
oklch(45% 0.093 268.8)
-
Step 900
900
#323F68
oklch(37.7% 0.072 269.4)
-
Step 950
950
#1D253D
oklch(26.9% 0.046 269.1)
#405289 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) | #3C588B | 0.017 |
| Deuteranopia (no green cones) | #345188 | 0.016 |
| Tritanopia (no blue cones) | #1E5E67 | 0.083 |
| Achromatopsia (no color) | #545454 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405289
#405289
oklch(45% 0.093 268.8)
- #6A5200
#6A5200
oklch(45.1% 0.092 89.1)
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 #405289, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.020
- Dusk #4E5481 ΔE 0.025
- Denim Blue #3B5B92 ΔE 0.027
- Dusk Blue #26538D ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.029
- Dusky Blue #475F94 ΔE 0.041
- YInMn Blue #415A77 ΔE 0.043
- Light Navy #155084 ΔE 0.044
Use #405289 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.