#45528F
Closest named color: Twilight (#4E518B). oklch(45.8% 0.101 272.8), rgb(69, 82, 143).
Aa
White text reads best on this color (7.35:1).
About this color
#45528F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.101 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 7.35:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.85:1 |
| White text | 7.35:1 |
Values
| HEX | #45528F |
| RGB | rgb(69, 82, 143) |
| HSL | hsl(229, 35%, 42%) |
| OKLCH | oklch(45.8% 0.101 272.8) |
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 #45528F | 7.35:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #45528F | 2.85:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #45528F text on white | 7.35:1 | AAA | Lc 85.4 | Fine for body text |
| #45528F text on black | 2.85:1 | Fails | Lc -16.6 | 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 800.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
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
#B3BFE7
oklch(80.9% 0.058 272)
-
Step 400
400
#8D9DDC
oklch(70.8% 0.094 272.8)
-
Step 500
500
#7183D2
oklch(63% 0.121 272.8)
-
Step 600
600
#5A6CBF
oklch(55.7% 0.13 272.3)
-
Step 700
700
#4A59A5
oklch(49% 0.122 272.7)
-
Step 800
800 (this color)
#45528F
oklch(45.8% 0.101 272.8)
-
Step 900
900
#343E6B
oklch(37.8% 0.078 272.7)
-
Step 950
950
#1E243F
oklch(26.9% 0.051 273)
#45528F 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) | #395991 | 0.023 |
| Deuteranopia (no green cones) | #32538E | 0.023 |
| Tritanopia (no blue cones) | #265F69 | 0.090 |
| Achromatopsia (no color) | #565656 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45528F
#45528F
oklch(45.8% 0.101 272.8)
- #6A5500
#6A5500
oklch(45.8% 0.094 92.2)
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 #45528F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.014
- Denim Blue #3B5B92 ΔE 0.026
- Dusk #4E5481 ΔE 0.028
- Dusk Blue #26538D ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.037
- Dusky Blue #475F94 ΔE 0.037
- Blueberry #464196 ΔE 0.049
- Denim #3B638C ΔE 0.051
Use #45528F 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.