#48539B
Closest named color: Twilight (#4E518B). oklch(47% 0.116 274.5), rgb(72, 83, 155).
Aa
White text reads best on this color (7.03:1).
About this color
#48539B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.116 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.027 away. White text reads best on it, at 7.03:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.98:1 |
| White text | 7.03:1 |
Values
| HEX | #48539B |
| RGB | rgb(72, 83, 155) |
| HSL | hsl(232, 37%, 45%) |
| OKLCH | oklch(47% 0.116 274.5) |
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 #48539B | 7.03:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #48539B | 2.98:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #48539B text on white | 7.03:1 | AAA | Lc 84.2 | Fine for body text |
| #48539B text on black | 2.98:1 | Fails | Lc -17.8 | 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 700.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D2D8EE
oklch(88.4% 0.031 273.6)
-
Step 300
300
#B5BFE6
oklch(81% 0.056 273.8)
-
Step 400
400
#8F9CD9
oklch(70.6% 0.091 274.6)
-
Step 500
500
#7583CF
oklch(63.1% 0.115 274.7)
-
Step 600
600
#5E6BBC
oklch(55.5% 0.126 274.7)
-
Step 700
700 (this color)
#48539B
oklch(47% 0.116 274.5)
-
Step 800
800
#404983
oklch(42.7% 0.096 274.9)
-
Step 900
900
#363E69
oklch(37.8% 0.074 274.3)
-
Step 950
950
#1F243E
oklch(26.9% 0.049 274.4)
#48539B 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) | #345C9E | 0.031 |
| Deuteranopia (no green cones) | #2A5599 | 0.035 |
| Tritanopia (no blue cones) | #22636F | 0.104 |
| Achromatopsia (no color) | #595959 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #48539B
#48539B
oklch(47% 0.116 274.5)
- #6C5900
#6C5900
oklch(46.9% 0.096 94.5)
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 #48539B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.027
- Denim Blue #3B5B92 ΔE 0.032
- Dusky Blue #475F94 ΔE 0.038
- Dusk #4E5481 ΔE 0.044
- Dusk Blue #26538D ΔE 0.047
- Blueberry #464196 ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.050
- Denim #3B638C ΔE 0.058
Use #48539B 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.