#353F82
Closest named color: Dark Slate Blue (#483D8B). oklch(39.6% 0.112 273.8), rgb(53, 63, 130).
Aa
White text reads best on this color (9.61:1).
About this color
#353F82 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.112 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.033 away. White text reads best on it, at 9.61:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.18:1 |
| White text | 9.61:1 |
Values
| HEX | #353F82 |
| RGB | rgb(53, 63, 130) |
| HSL | hsl(232, 42%, 36%) |
| OKLCH | oklch(39.6% 0.112 273.8) |
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 #353F82 | 9.61:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #353F82 | 2.18:1 | Fails | Lc 11.9 | Not readable |
| #353F82 text on white | 9.61:1 | AAA | Lc 92.0 | Preferred for body text |
| #353F82 text on black | 2.18:1 | Fails | Lc -10.4 | 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
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CFD8F9
oklch(88.6% 0.047 273.4)
-
Step 300
300
#AFBDF8
oklch(80.9% 0.085 274)
-
Step 400
400
#8799F4
oklch(70.7% 0.135 274)
-
Step 500
500
#6B7DF0
oklch(63.2% 0.172 273.8)
-
Step 600
600
#5563DE
oklch(55.7% 0.186 273.8)
-
Step 700
700
#4551C1
oklch(49.1% 0.174 273.5)
-
Step 800
800
#39439C
oklch(42.7% 0.144 273.8)
-
Step 900
900 (this color)
#353F82
oklch(39.6% 0.112 273.8)
-
Step 950
950
#1C2249
oklch(27% 0.072 274)
#353F82 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) | #1D4884 | 0.033 |
| Deuteranopia (no green cones) | #0F4281 | 0.037 |
| Tritanopia (no blue cones) | #034E5A | 0.099 |
| Achromatopsia (no color) | #454545 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #353F82
#353F82
oklch(39.6% 0.112 273.8)
- #554500
#554500
oklch(39.6% 0.081 93.8)
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 #353F82, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.033
- Cobalt #1E488F ΔE 0.036
- Blueberry #464196 ΔE 0.043
- Twilight Blue #0A437A ΔE 0.043
- Light Navy #155084 ΔE 0.053
- Dusk Blue #26538D ΔE 0.057
- Deep Sea Blue #015482 ΔE 0.066
- Twilight #4E518B ΔE 0.067
Use #353F82 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.