#454F71
Closest named color: Dusk (#4E5481). oklch(43.4% 0.058 271.2), rgb(69, 79, 113).
Aa
White text reads best on this color (8.04:1).
About this color
#454F71 is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.058 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.032 away. White text reads best on it, at 8.04:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.60:1 |
| White text | 8.04:1 |
Values
| HEX | #454F71 |
| RGB | rgb(69, 79, 113) |
| HSL | hsl(226, 24%, 36%) |
| OKLCH | oklch(43.4% 0.058 271.2) |
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 #454F71 | 8.04:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #454F71 | 2.60:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #454F71 text on white | 8.04:1 | AAA | Lc 87.8 | Fine for body text |
| #454F71 text on black | 2.60:1 | Fails | Lc -14.3 | 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
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D4D9E6
oklch(88.5% 0.019 269.1)
-
Step 300
300
#B8C0D7
oklch(80.9% 0.034 270.4)
-
Step 400
400
#949FC3
oklch(70.6% 0.054 271.7)
-
Step 500
500
#7A87B4
oklch(63% 0.07 271.8)
-
Step 600
600
#6371A0
oklch(55.6% 0.075 271.1)
-
Step 700
700
#525E89
oklch(49% 0.071 271.7)
-
Step 800
800 (this color)
#454F71
oklch(43.4% 0.058 271.2)
-
Step 900
900
#39405A
oklch(37.7% 0.046 272.4)
-
Step 950
950
#212635
oklch(27.1% 0.029 270.1)
#454F71 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) | #445272 | 0.009 |
| Deuteranopia (no green cones) | #404E70 | 0.008 |
| Tritanopia (no blue cones) | #38565B | 0.052 |
| Achromatopsia (no color) | #505050 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #454F71
#454F71
oklch(43.4% 0.058 271.2)
- #5D502A
#5D502A
oklch(43.5% 0.058 91)
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 #454F71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.032
- YInMn Blue #415A77 ΔE 0.032
- Dusty Grape #545775 ΔE 0.035
- Twilight #4E518B ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.048
- Dusk Blue #26538D ΔE 0.055
- Light Navy #155084 ΔE 0.056
- Denim Blue #3B5B92 ΔE 0.058
Use #454F71 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.