#3D488F
Closest named color: Blueberry (#464196). oklch(43% 0.117 273.8), rgb(61, 72, 143).
Aa
White text reads best on this color (8.32:1).
About this color
#3D488F is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.117 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.025 away. White text reads best on it, at 8.32:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.52:1 |
| White text | 8.32:1 |
Values
| HEX | #3D488F |
| RGB | rgb(61, 72, 143) |
| HSL | hsl(232, 40%, 40%) |
| OKLCH | oklch(43% 0.117 273.8) |
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 #3D488F | 8.32:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #3D488F | 2.52:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #3D488F text on white | 8.32:1 | AAA | Lc 88.5 | Fine for body text |
| #3D488F text on black | 2.52:1 | Fails | Lc -13.7 | Not readable |
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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D1D8F3
oklch(88.5% 0.038 274.1)
-
Step 300
300
#B2BEED
oklch(80.8% 0.068 273.6)
-
Step 400
400
#8B9BE5
oklch(70.6% 0.11 273.9)
-
Step 500
500
#7081DD
oklch(63.2% 0.139 273.9)
-
Step 600
600
#5968CB
oklch(55.6% 0.153 273.9)
-
Step 700
700
#4956AF
oklch(49% 0.141 273.8)
-
Step 800
800 (this color)
#3D488F
oklch(43% 0.117 273.8)
-
Step 900
900
#333C71
oklch(37.6% 0.091 274)
-
Step 950
950
#1E2442
oklch(27.1% 0.056 273.5)
#3D488F 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) | #265292 | 0.034 |
| Deuteranopia (no green cones) | #1A4B8D | 0.037 |
| Tritanopia (no blue cones) | #0E5864 | 0.105 |
| Achromatopsia (no color) | #4E4E4E | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D488F
#3D488F
oklch(43% 0.117 273.8)
- #604E00
#604E00
oklch(43% 0.088 93.6)
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 #3D488F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.025
- Dark Slate Blue #483D8B ΔE 0.031
- Cobalt #1E488F ΔE 0.035
- Dusk Blue #26538D ΔE 0.038
- Twilight #4E518B ΔE 0.039
- Light Navy #155084 ΔE 0.048
- Dusk #4E5481 ΔE 0.053
- Denim Blue #3B5B92 ΔE 0.053
Use #3D488F 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.