#353B5D
Closest named color: Dark Grey Blue (#29465B). oklch(36.3% 0.059 275.4), rgb(53, 59, 93).
Aa
White text reads best on this color (10.85:1).
About this color
#353B5D is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.059 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.038 away. White text reads best on it, at 10.85:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.93:1 |
| White text | 10.85:1 |
Values
| HEX | #353B5D |
| RGB | rgb(53, 59, 93) |
| HSL | hsl(231, 27%, 29%) |
| OKLCH | oklch(36.3% 0.059 275.4) |
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 #353B5D | 10.85:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #353B5D | 1.93:1 | Fails | Lc 8.8 | Not readable |
| #353B5D text on white | 10.85:1 | AAA | Lc 95.1 | Preferred for body text |
| #353B5D text on black | 1.93:1 | Fails | Lc -7.5 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EA
oklch(88.5% 0.025 275.9)
-
Step 300
300
#B8BFDE
oklch(80.9% 0.044 275.3)
-
Step 400
400
#949DCD
oklch(70.6% 0.071 276.2)
-
Step 500
500
#7A85C1
oklch(63.2% 0.091 275.5)
-
Step 600
600
#636EAD
oklch(55.7% 0.099 275.2)
-
Step 700
700
#525B95
oklch(49% 0.093 275.7)
-
Step 800
800
#434B78
oklch(42.7% 0.075 275.1)
-
Step 900
900 (this color)
#353B5D
oklch(36.3% 0.059 275.4)
-
Step 950
950
#212539
oklch(27% 0.038 274.9)
#353B5D 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) | #303F5E | 0.013 |
| Deuteranopia (no green cones) | #2D3C5C | 0.012 |
| Tritanopia (no blue cones) | #294247 | 0.054 |
| Achromatopsia (no color) | #3D3D3D | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #353B5D
#353B5D
oklch(36.3% 0.059 275.4)
- #473D15
#473D15
oklch(36.1% 0.059 95.2)
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 #353B5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.043
- Charcoal #264653 ΔE 0.047
- Onyx #343A40 ΔE 0.051
- Gunmetal #293241 ΔE 0.057
- Charcoal Grey #3C4142 ΔE 0.057
- Marine Blue #01386A ΔE 0.057
Use #353B5D 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.