#45518E
Closest named color: Twilight (#4E518B). oklch(45.5% 0.1 273.4), rgb(69, 81, 142).
Aa
White text reads best on this color (7.44:1).
About this color
#45518E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.100 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.014 away. White text reads best on it, at 7.44:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.82:1 |
| White text | 7.44:1 |
Values
| HEX | #45518E |
| RGB | rgb(69, 81, 142) |
| HSL | hsl(230, 35%, 41%) |
| OKLCH | oklch(45.5% 0.1 273.4) |
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 #45518E | 7.44:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #45518E | 2.82:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #45518E text on white | 7.44:1 | AAA | Lc 85.7 | Fine for body text |
| #45518E text on black | 2.82:1 | Fails | Lc -16.3 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D2D8EF
oklch(88.5% 0.032 274.1)
-
Step 300
300
#B4BFE7
oklch(81% 0.058 273)
-
Step 400
400
#8D9DDC
oklch(70.8% 0.094 272.8)
-
Step 500
500
#7283D2
oklch(63.1% 0.121 273.3)
-
Step 600
600
#5C6BBF
oklch(55.6% 0.131 273.8)
-
Step 700
700
#4B59A5
oklch(49.1% 0.122 273.2)
-
Step 800
800 (this color)
#45518E
oklch(45.5% 0.1 273.4)
-
Step 900
900
#343E6B
oklch(37.8% 0.078 272.7)
-
Step 950
950
#1F243F
oklch(27% 0.051 274.5)
#45518E 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) | #395890 | 0.023 |
| Deuteranopia (no green cones) | #31528D | 0.025 |
| Tritanopia (no blue cones) | #275E68 | 0.090 |
| Achromatopsia (no color) | #555555 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45518E
#45518E
oklch(45.5% 0.1 273.4)
- #685500
#685500
oklch(45.5% 0.093 93.9)
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 #45518E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.014
- Dusk #4E5481 ΔE 0.028
- Denim Blue #3B5B92 ΔE 0.029
- Dusk Blue #26538D ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.038
- Dusky Blue #475F94 ΔE 0.040
- Blueberry #464196 ΔE 0.047
- YInMn Blue #415A77 ΔE 0.052
Use #45518E 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.