#454D71
Closest named color: Dusk (#4E5481). oklch(42.9% 0.061 274), rgb(69, 77, 113).
Aa
White text reads best on this color (8.22:1).
About this color
#454D71 is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.061 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.034 away. White text reads best on it, at 8.22:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.55:1 |
| White text | 8.22:1 |
Values
| HEX | #454D71 |
| RGB | rgb(69, 77, 113) |
| HSL | hsl(229, 24%, 36%) |
| OKLCH | oklch(42.9% 0.061 274) |
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 #454D71 | 8.22:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #454D71 | 2.55:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #454D71 text on white | 8.22:1 | AAA | Lc 88.4 | Fine for body text |
| #454D71 text on black | 2.55:1 | Fails | Lc -13.8 | 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
#E7E9F1
oklch(93.5% 0.011 274.9)
-
Step 200
200
#D5D8E7
oklch(88.4% 0.021 276.9)
-
Step 300
300
#B9BFD8
oklch(80.8% 0.036 274.9)
-
Step 400
400
#959FC5
oklch(70.8% 0.057 273.4)
-
Step 500
500
#7B87B6
oklch(63.2% 0.072 273.1)
-
Step 600
600
#6570A2
oklch(55.7% 0.079 274.1)
-
Step 700
700
#545D8A
oklch(49% 0.073 274.7)
-
Step 800
800 (this color)
#454D71
oklch(42.9% 0.061 274)
-
Step 900
900
#3A405B
oklch(37.8% 0.047 274.3)
-
Step 950
950
#222535
oklch(26.9% 0.03 276)
#454D71 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) | #415173 | 0.012 |
| Deuteranopia (no green cones) | #3E4D70 | 0.010 |
| Tritanopia (no blue cones) | #38545A | 0.054 |
| Achromatopsia (no color) | #4F4F4F | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #454D71
#454D71
oklch(42.9% 0.061 274)
- #5A4F26
#5A4F26
oklch(42.9% 0.061 94.7)
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 #454D71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.034
- YInMn Blue #415A77 ΔE 0.038
- Dusty Grape #545775 ΔE 0.039
- Twilight #4E518B ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.051
- Dusk Blue #26538D ΔE 0.055
- Light Navy #155084 ΔE 0.055
- Dark Grey Blue #29465B ΔE 0.058
Use #454D71 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.