#4545A9
Closest named color: Blueberry (#464196). oklch(45% 0.156 278.1), rgb(69, 69, 169).
Aa
White text reads best on this color (7.84:1).
About this color
#4545A9 is a dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.156 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.032 away. White text reads best on it, at 7.84:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.67:1 |
| White text | 7.84:1 |
Values
| HEX | #4545A9 |
| RGB | rgb(69, 69, 169) |
| HSL | hsl(240, 42%, 47%) |
| OKLCH | oklch(45% 0.156 278.1) |
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 #4545A9 | 7.84:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #4545A9 | 2.67:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #4545A9 text on white | 7.84:1 | AAA | Lc 86.8 | Fine for body text |
| #4545A9 text on black | 2.67:1 | Fails | Lc -15.3 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D1D7FB
oklch(88.6% 0.05 277.9)
-
Step 300
300
#B2BBFC
oklch(80.8% 0.092 278)
-
Step 400
400
#8C95FA
oklch(70.6% 0.147 278.1)
-
Step 500
500
#7377F7
oklch(63.1% 0.187 278.2)
-
Step 600
600
#5E5CE6
oklch(55.6% 0.203 278.1)
-
Step 700
700
#4E4AC8
oklch(49.1% 0.19 278.2)
-
Step 800
800 (this color)
#4545A9
oklch(45% 0.156 278.1)
-
Step 900
900
#353680
oklch(37.6% 0.122 278.2)
-
Step 950
950
#1F214B
oklch(27.1% 0.076 278)
#4545A9 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) | #0056AC | 0.062 |
| Deuteranopia (no green cones) | #004EA7 | 0.058 |
| Tritanopia (no blue cones) | #005D70 | 0.136 |
| Achromatopsia (no color) | #525252 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4545A9
#4545A9
oklch(45% 0.156 278.1)
- #635500
#635500
oklch(45% 0.093 98.1)
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 #4545A9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.032
- Dark Slate Blue #483D8B ΔE 0.051
- Blue With A Hint Of Purple #533CC6 ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.059
- Sapphire #2138AB ΔE 0.059
- Blue Blue #2242C7 ΔE 0.063
- Blurple #5539CC ΔE 0.064
- Twilight #4E518B ΔE 0.064
Use #4545A9 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.