#3B548B
Closest named color: Denim Blue (#3B5B92). oklch(45.3% 0.095 264.4), rgb(59, 84, 139).
Aa
White text reads best on this color (7.42:1).
About this color
#3B548B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.095 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.021 away. White text reads best on it, at 7.42:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 2.82:1 |
| White text | 7.42:1 |
Values
| HEX | #3B548B |
| RGB | rgb(59, 84, 139) |
| HSL | hsl(221, 40%, 39%) |
| OKLCH | oklch(45.3% 0.095 264.4) |
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 #3B548B | 7.42:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #3B548B | 2.82:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #3B548B text on white | 7.42:1 | AAA | Lc 85.7 | Fine for body text |
| #3B548B text on black | 2.82:1 | Fails | Lc -16.4 | 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
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CFD9EE
oklch(88.4% 0.031 265.3)
-
Step 300
300
#AFC1E6
oklch(81% 0.056 264.7)
-
Step 400
400
#85A0D9
oklch(70.7% 0.089 264.7)
-
Step 500
500
#6788CF
oklch(63.3% 0.114 264.4)
-
Step 600
600
#4E70BC
oklch(55.6% 0.125 264.5)
-
Step 700
700
#3F5EA2
oklch(49.2% 0.115 264.1)
-
Step 800
800 (this color)
#3B548B
oklch(45.3% 0.095 264.4)
-
Step 900
900
#2D4069
oklch(37.6% 0.075 264.3)
-
Step 950
950
#1B263D
oklch(27% 0.046 264.1)
#3B548B 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) | #3D598D | 0.015 |
| Deuteranopia (no green cones) | #33528A | 0.012 |
| Tritanopia (no blue cones) | #066069 | 0.085 |
| Achromatopsia (no color) | #555555 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B548B
#3B548B
oklch(45.3% 0.095 264.4)
- #6E5100
#6E5100
oklch(45.3% 0.093 84.6)
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 #3B548B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.021
- Light Navy Blue #2E5A88 ΔE 0.023
- Dusk Blue #26538D ΔE 0.023
- Twilight #4E518B ΔE 0.026
- Dusk #4E5481 ΔE 0.030
- Dusky Blue #475F94 ΔE 0.038
- Light Navy #155084 ΔE 0.041
- YInMn Blue #415A77 ΔE 0.042
Use #3B548B 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.