#353A65
Closest named color: Prussian Blue (#1D3557). oklch(36.5% 0.074 277.1), rgb(53, 58, 101).
Aa
White text reads best on this color (10.79:1).
About this color
#353A65 is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.074 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.045 away. White text reads best on it, at 10.79:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.94:1 |
| White text | 10.79:1 |
Values
| HEX | #353A65 |
| RGB | rgb(53, 58, 101) |
| HSL | hsl(234, 31%, 30%) |
| OKLCH | oklch(36.5% 0.074 277.1) |
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 #353A65 | 10.79:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #353A65 | 1.94:1 | Fails | Lc 9.0 | Not readable |
| #353A65 text on white | 10.79:1 | AAA | Lc 94.9 | Preferred for body text |
| #353A65 text on black | 1.94:1 | Fails | Lc -7.7 | 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 900.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D3D8EE
oklch(88.5% 0.031 275.6)
-
Step 300
300
#B7BEE5
oklch(80.9% 0.056 277.1)
-
Step 400
400
#929CD8
oklch(70.7% 0.089 276.6)
-
Step 500
500
#7882CD
oklch(63% 0.113 276.9)
-
Step 600
600
#626ABA
oklch(55.5% 0.124 277.3)
-
Step 700
700
#5158A1
oklch(49% 0.116 277.1)
-
Step 800
800
#424982
oklch(42.8% 0.094 276.4)
-
Step 900
900 (this color)
#353A65
oklch(36.5% 0.074 277.1)
-
Step 950
950
#21243D
oklch(27% 0.047 277.6)
#353A65 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) | #2A3F67 | 0.020 |
| Deuteranopia (no green cones) | #263C64 | 0.021 |
| Tritanopia (no blue cones) | #25434A | 0.066 |
| Achromatopsia (no color) | #3D3D3D | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #353A65
#353A65
oklch(36.5% 0.074 277.1)
- #4A3E02
#4A3E02
oklch(36.6% 0.074 96.5)
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 #353A65, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.047
- Marine Blue #01386A ΔE 0.053
- Twilight Blue #0A437A ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.055
- Charcoal #264653 ΔE 0.058
- Onyx #343A40 ΔE 0.066
- Gunmetal #293241 ΔE 0.068
Use #353A65 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.