#45497F
Closest named color: Twilight (#4E518B). oklch(42.8% 0.089 278.7), rgb(69, 73, 127).
Aa
White text reads best on this color (8.35:1).
About this color
#45497F is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.089 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.032 away. White text reads best on it, at 8.35:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.51:1 |
| White text | 8.35:1 |
Values
| HEX | #45497F |
| RGB | rgb(69, 73, 127) |
| HSL | hsl(236, 30%, 38%) |
| OKLCH | oklch(42.8% 0.089 278.7) |
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 #45497F | 8.35:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #45497F | 2.51:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #45497F text on white | 8.35:1 | AAA | Lc 88.7 | Fine for body text |
| #45497F text on black | 2.51:1 | Fails | Lc -13.5 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D4D8ED
oklch(88.6% 0.029 277.2)
-
Step 300
300
#B9BEE3
oklch(81% 0.052 279.1)
-
Step 400
400
#959CD4
oklch(70.8% 0.082 278.6)
-
Step 500
500
#7B82C9
oklch(63% 0.107 278.6)
-
Step 600
600
#656BB6
oklch(55.7% 0.116 278.5)
-
Step 700
700
#54599C
oklch(49.2% 0.106 278.5)
-
Step 800
800 (this color)
#45497F
oklch(42.8% 0.089 278.7)
-
Step 900
900
#3A3D66
oklch(37.7% 0.07 279.3)
-
Step 950
950
#22243C
oklch(27.1% 0.045 279.3)
#45497F 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) | #355081 | 0.027 |
| Deuteranopia (no green cones) | #314C7E | 0.027 |
| Tritanopia (no blue cones) | #32545E | 0.077 |
| Achromatopsia (no color) | #4E4E4E | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45497F
#45497F
oklch(42.8% 0.089 278.7)
- #5C4F00
#5C4F00
oklch(42.8% 0.088 98.3)
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 #45497F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.032
- Dusk #4E5481 ΔE 0.036
- Dark Slate Blue #483D8B ΔE 0.041
- Dusk Blue #26538D ΔE 0.045
- Blueberry #464196 ΔE 0.046
- Light Navy #155084 ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.052
- Cobalt #1E488F ΔE 0.053
Use #45497F 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.