#455B85
Closest named color: Dusk (#4E5481). oklch(47.2% 0.074 262.7), rgb(69, 91, 133).
Aa
White text reads best on this color (6.80:1).
About this color
#455B85 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.074 and its hue 263°. 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 6.80:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 3.08:1 |
| White text | 6.80:1 |
Values
| HEX | #455B85 |
| RGB | rgb(69, 91, 133) |
| HSL | hsl(219, 32%, 40%) |
| OKLCH | oklch(47.2% 0.074 262.7) |
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 #455B85 | 6.80:1 | AA | Lc -88.4 | Fine for body text |
| Black text on #455B85 | 3.08:1 | AA large text | Lc 20.6 | Dividers and decoration only |
| #455B85 text on white | 6.80:1 | AA | Lc 83.4 | Fine for body text |
| #455B85 text on black | 3.08:1 | AA large text | Lc -18.6 | 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 700.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D2D9E7
oklch(88.4% 0.021 264.5)
-
Step 300
300
#B4C1D8
oklch(80.8% 0.036 261.9)
-
Step 400
400
#8EA1C5
oklch(70.7% 0.057 263.1)
-
Step 500
500
#728AB6
oklch(63.2% 0.072 262.3)
-
Step 600
600
#5A73A2
oklch(55.6% 0.079 262.5)
-
Step 700
700 (this color)
#455B85
oklch(47.2% 0.074 262.7)
-
Step 800
800
#3D4F71
oklch(42.8% 0.061 262.6)
-
Step 900
900
#34425B
oklch(37.8% 0.047 261.7)
-
Step 950
950
#1F2635
oklch(26.9% 0.03 265.1)
#455B85 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) | #4B5E87 | 0.013 |
| Deuteranopia (no green cones) | #445884 | 0.009 |
| Tritanopia (no blue cones) | #2C646A | 0.066 |
| Achromatopsia (no color) | #5B5B5B | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455B85
#455B85
oklch(47.2% 0.074 262.7)
- #705726
#705726
oklch(47.2% 0.074 82)
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 #455B85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.022
- Denim Blue #3B5B92 ΔE 0.024
- YInMn Blue #415A77 ΔE 0.024
- Denim #3B638C ΔE 0.024
- Dusky Blue #475F94 ΔE 0.025
- Light Navy Blue #2E5A88 ΔE 0.027
- Dusty Grape #545775 ΔE 0.031
- Twilight #4E518B ΔE 0.034
Use #455B85 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.