#353D5A
Closest named color: Dark Grey Blue (#29465B). oklch(36.6% 0.051 271.9), rgb(53, 61, 90).
Aa
White text reads best on this color (10.67:1).
About this color
#353D5A is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.051 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.031 away. White text reads best on it, at 10.67:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.96:1 |
| White text | 10.67:1 |
Values
| HEX | #353D5A |
| RGB | rgb(53, 61, 90) |
| HSL | hsl(227, 26%, 28%) |
| OKLCH | oklch(36.6% 0.051 271.9) |
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 #353D5A | 10.67:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #353D5A | 1.96:1 | Fails | Lc 9.2 | Not readable |
| #353D5A text on white | 10.67:1 | AAA | Lc 94.7 | Preferred for body text |
| #353D5A text on black | 1.96:1 | Fails | Lc -7.9 | 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
#D4D9E8
oklch(88.6% 0.021 271.2)
-
Step 300
300
#B7C0DA
oklch(80.9% 0.038 270.4)
-
Step 400
400
#939FC8
oklch(70.8% 0.062 272)
-
Step 500
500
#7887BA
oklch(63.1% 0.079 271.4)
-
Step 600
600
#6270A6
oklch(55.6% 0.086 272.3)
-
Step 700
700
#515E8E
oklch(49.2% 0.079 271.7)
-
Step 800
800
#424D73
oklch(42.8% 0.065 271.1)
-
Step 900
900 (this color)
#353D5A
oklch(36.6% 0.051 271.9)
-
Step 950
950
#212637
oklch(27.2% 0.033 271.5)
#353D5A 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) | #33405B | 0.009 |
| Deuteranopia (no green cones) | #303D59 | 0.008 |
| Tritanopia (no blue cones) | #2A4347 | 0.047 |
| Achromatopsia (no color) | #3E3E3E | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #353D5A
#353D5A
oklch(36.6% 0.051 271.9)
- #483E1D
#483E1D
oklch(36.6% 0.051 92.9)
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 #353D5A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.031
- Charcoal #264653 ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.044
- Onyx #343A40 ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.049
- Gunmetal #293241 ΔE 0.056
- Midnight Green #073B4C ΔE 0.057
Use #353D5A 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.