#353F6F
Closest named color: Twilight Blue (#0A437A). oklch(38.3% 0.083 273), rgb(53, 63, 111).
Aa
White text reads best on this color (10.03:1).
About this color
#353F6F is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.083 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.042 away. White text reads best on it, at 10.03:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.09:1 |
| White text | 10.03:1 |
Values
| HEX | #353F6F |
| RGB | rgb(53, 63, 111) |
| HSL | hsl(230, 35%, 32%) |
| OKLCH | oklch(38.3% 0.083 273) |
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 #353F6F | 10.03:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #353F6F | 2.09:1 | Fails | Lc 10.7 | Not readable |
| #353F6F text on white | 10.03:1 | AAA | Lc 93.2 | Preferred for body text |
| #353F6F text on black | 2.09:1 | Fails | Lc -9.3 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D1D8F1
oklch(88.5% 0.035 273.2)
-
Step 300
300
#B3BFEA
oklch(81% 0.062 272.7)
-
Step 400
400
#8C9CDF
oklch(70.6% 0.1 273.3)
-
Step 500
500
#7183D6
oklch(63.2% 0.127 273)
-
Step 600
600
#5A6BC3
oklch(55.7% 0.137 273)
-
Step 700
700
#4A58A8
oklch(49% 0.128 273.3)
-
Step 800
800
#3D4988
oklch(42.8% 0.105 273.1)
-
Step 900
900 (this color)
#353F6F
oklch(38.3% 0.083 273)
-
Step 950
950
#1E2440
oklch(27% 0.053 273.2)
#353F6F 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) | #2C4571 | 0.020 |
| Deuteranopia (no green cones) | #26406E | 0.020 |
| Tritanopia (no blue cones) | #1D4951 | 0.074 |
| Achromatopsia (no color) | #424242 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #353F6F
#353F6F
oklch(38.3% 0.083 273)
- #524200
#524200
oklch(38.5% 0.079 93.2)
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 #353F6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.057
- Marine Blue #01386A ΔE 0.058
- Cobalt #1E488F ΔE 0.058
- Light Navy #155084 ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.061
- Charcoal #264653 ΔE 0.062
Use #353F6F 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.