#353B6D
Closest named color: Twilight Blue (#0A437A). oklch(37.3% 0.085 276.3), rgb(53, 59, 109).
Aa
White text reads best on this color (10.51:1).
About this color
#353B6D is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.085 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.046 away. White text reads best on it, at 10.51:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.99:1 |
| White text | 10.51:1 |
Values
| HEX | #353B6D |
| RGB | rgb(53, 59, 109) |
| HSL | hsl(234, 35%, 32%) |
| OKLCH | oklch(37.3% 0.085 276.3) |
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 #353B6D | 10.51:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #353B6D | 1.99:1 | Fails | Lc 9.7 | Not readable |
| #353B6D text on white | 10.51:1 | AAA | Lc 94.3 | Preferred for body text |
| #353B6D text on black | 1.99:1 | Fails | Lc -8.3 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D2D8F1
oklch(88.5% 0.035 274.9)
-
Step 300
300
#B5BEEB
oklch(81% 0.064 276)
-
Step 400
400
#8F9BE0
oklch(70.7% 0.102 275.9)
-
Step 500
500
#7581D8
oklch(63.2% 0.131 276)
-
Step 600
600
#5F68C5
oklch(55.6% 0.143 276.5)
-
Step 700
700
#4E56AA
oklch(49% 0.133 276.2)
-
Step 800
800
#40478A
oklch(42.7% 0.11 276.2)
-
Step 900
900 (this color)
#353B6D
oklch(37.3% 0.085 276.3)
-
Step 950
950
#202341
oklch(27% 0.056 277.7)
#353B6D 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) | #27416F | 0.023 |
| Deuteranopia (no green cones) | #223D6C | 0.025 |
| Tritanopia (no blue cones) | #1F464E | 0.077 |
| Achromatopsia (no color) | #3F3F3F | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #353B6D
#353B6D
oklch(37.3% 0.085 276.3)
- #4D4000
#4D4000
oklch(37.4% 0.077 96)
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 #353B6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.053
- Marine Blue #01386A ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.060
- Cobalt #1E488F ΔE 0.065
- Dark Blue Grey #1F3B4D ΔE 0.066
- Charcoal #264653 ΔE 0.066
Use #353B6D 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.