#353D82
Closest named color: Dark Slate Blue (#483D8B). oklch(39.2% 0.115 274.8), rgb(53, 61, 130).
Aa
White text reads best on this color (9.80:1).
About this color
#353D82 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.115 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.034 away. White text reads best on it, at 9.80:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.14:1 |
| White text | 9.80:1 |
Values
| HEX | #353D82 |
| RGB | rgb(53, 61, 130) |
| HSL | hsl(234, 42%, 36%) |
| OKLCH | oklch(39.2% 0.115 274.8) |
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 #353D82 | 9.80:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #353D82 | 2.14:1 | Fails | Lc 11.4 | Not readable |
| #353D82 text on white | 9.80:1 | AAA | Lc 92.5 | Preferred for body text |
| #353D82 text on black | 2.14:1 | Fails | Lc -9.9 | 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 900.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#CFD7FA
oklch(88.4% 0.049 275.2)
-
Step 300
300
#B0BDF9
oklch(81% 0.086 274.8)
-
Step 400
400
#8898F6
oklch(70.7% 0.138 275)
-
Step 500
500
#6C7BF2
oklch(63% 0.177 274.7)
-
Step 600
600
#5761E1
oklch(55.7% 0.192 274.9)
-
Step 700
700
#474FC3
oklch(49% 0.178 274.7)
-
Step 800
800
#3A429E
oklch(42.8% 0.148 274.5)
-
Step 900
900 (this color)
#353D82
oklch(39.2% 0.115 274.8)
-
Step 950
950
#1D2249
oklch(27% 0.072 275)
#353D82 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) | #174784 | 0.038 |
| Deuteranopia (no green cones) | #084081 | 0.041 |
| Tritanopia (no blue cones) | #044D59 | 0.102 |
| Achromatopsia (no color) | #444444 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #353D82
#353D82
oklch(39.2% 0.115 274.8)
- #534400
#534400
oklch(39.1% 0.08 94.6)
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 #353D82, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.034
- Cobalt #1E488F ΔE 0.039
- Blueberry #464196 ΔE 0.044
- Twilight Blue #0A437A ΔE 0.045
- Light Navy #155084 ΔE 0.057
- Dusk Blue #26538D ΔE 0.062
- Marine Blue #01386A ΔE 0.069
- Deep Sea Blue #015482 ΔE 0.071
Use #353D82 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.