#353E61
Closest named color: Dark Grey Blue (#29465B). oklch(37.2% 0.061 272.1), rgb(53, 62, 97).
Aa
White text reads best on this color (10.43:1).
About this color
#353E61 is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.061 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.033 away. White text reads best on it, at 10.43:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.01:1 |
| White text | 10.43:1 |
Values
| HEX | #353E61 |
| RGB | rgb(53, 62, 97) |
| HSL | hsl(228, 29%, 29%) |
| OKLCH | oklch(37.2% 0.061 272.1) |
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 #353E61 | 10.43:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #353E61 | 2.01:1 | Fails | Lc 9.8 | Not readable |
| #353E61 text on white | 10.43:1 | AAA | Lc 94.2 | Preferred for body text |
| #353E61 text on black | 2.01:1 | Fails | Lc -8.4 | 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
#E6E9F3
oklch(93.5% 0.014 272.7)
-
Step 200
200
#D3D9EB
oklch(88.6% 0.026 271.1)
-
Step 300
300
#B6BFDF
oklch(80.8% 0.046 272.9)
-
Step 400
400
#909ECF
oklch(70.6% 0.074 272.1)
-
Step 500
500
#7686C3
oklch(63.2% 0.094 272.2)
-
Step 600
600
#5F6FAF
oklch(55.7% 0.101 272.1)
-
Step 700
700
#4E5C97
oklch(49.1% 0.096 272.3)
-
Step 800
800
#404C7A
oklch(42.8% 0.078 271.7)
-
Step 900
900 (this color)
#353E61
oklch(37.2% 0.061 272.1)
-
Step 950
950
#20253A
oklch(27% 0.04 273.2)
#353E61 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) | #324262 | 0.012 |
| Deuteranopia (no green cones) | #2E3E60 | 0.010 |
| Tritanopia (no blue cones) | #26454B | 0.054 |
| Achromatopsia (no color) | #404040 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #353E61
#353E61
oklch(37.2% 0.061 272.1)
- #4C3F15
#4C3F15
oklch(37.2% 0.061 91.8)
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 #353E61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.033
- Charcoal #264653 ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.048
- Twilight Blue #0A437A ΔE 0.055
- Onyx #343A40 ΔE 0.057
- Charcoal Grey #3C4142 ΔE 0.058
- Marine Blue #01386A ΔE 0.059
Use #353E61 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.