#353E5D
Closest named color: Dark Grey Blue (#29465B). oklch(37% 0.055 271.1), rgb(53, 62, 93).
Aa
White text reads best on this color (10.50:1).
About this color
#353E5D is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.055 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.030 away. White text reads best on it, at 10.50:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.99:1 |
| White text | 10.50:1 |
Values
| HEX | #353E5D |
| RGB | rgb(53, 62, 93) |
| HSL | hsl(227, 27%, 29%) |
| OKLCH | oklch(37% 0.055 271.1) |
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 #353E5D | 10.50:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #353E5D | 1.99:1 | Fails | Lc 9.6 | Not readable |
| #353E5D text on white | 10.50:1 | AAA | Lc 94.3 | Preferred for body text |
| #353E5D text on black | 1.99:1 | Fails | Lc -8.2 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF2
oklch(93.7% 0.011 269.5)
-
Step 200
200
#D3D9E9
oklch(88.6% 0.023 269.4)
-
Step 300
300
#B7C0DC
oklch(81% 0.041 271.4)
-
Step 400
400
#919FCA
oklch(70.7% 0.065 270.6)
-
Step 500
500
#7787BD
oklch(63.2% 0.084 271.2)
-
Step 600
600
#6070A9
oklch(55.7% 0.091 271.3)
-
Step 700
700
#4F5D91
oklch(49% 0.085 271.5)
-
Step 800
800
#414C76
oklch(42.6% 0.071 271.9)
-
Step 900
900 (this color)
#353E5D
oklch(37% 0.055 271.1)
-
Step 950
950
#202538
oklch(26.9% 0.036 272.4)
#353E5D 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) | #33415E | 0.009 |
| Deuteranopia (no green cones) | #303E5C | 0.008 |
| Tritanopia (no blue cones) | #284449 | 0.049 |
| Achromatopsia (no color) | #3F3F3F | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #353E5D
#353E5D
oklch(37% 0.055 271.1)
- #4B3F1B
#4B3F1B
oklch(37.2% 0.055 91.1)
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 #353E5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.030
- Charcoal #264653 ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.047
- Onyx #343A40 ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.052
- Twilight Blue #0A437A ΔE 0.060
- Midnight Green #073B4C ΔE 0.060
Use #353E5D 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.